HAVING A CLEAR OUT NOW RETIRED MAY BE OF USE TO SOMEONE,THIS IS FOR A NEW UNUSED EL82, 6P18P, 6DY5, PENTODE, SUPER RUGGED AUDIO OUTPUT VALVE. TESTED. IN THE PAST I HAVE USED THESE MANY TIMES TO REPLACE EL84 VALVES IN DANSETTE AND SIMILAR RECORD PLAYERS, AND IN MANY DIFFERENT RADIOS WITH OUT ANY PROBLEMS, THE B9A BASE PIN OUT CONNECTIONS IS THE SAME AS THE EL84, SO NO ALTERATIONS TO THE VALVE HOLDER OR WIRING . IN SOME CASES YOU CAN INCREASE THE CATHODE RESISTOR TO 270 OHMS, TO REDUCE CURRENT. EL82 SPECS HEATER VOLTS = 6.3v HEATER AMPS = 0.8 ANODE/SCREEN VOLTS = 170v ANODE I/Ma = 53ma SCREEN I/Ma = 10 Ra K ohms = 20NEG GRID VOLTS = 10v ANODE LOAD = 4000 ohms POWER OUTPUT = 4 watts ALWAYS HAPPY TO COMBINE POSTAL COSTS.

Good Used Mullard EL84 Professionally tested by Iconic Audio The values are Emissions Good Ma 45/48 no shorts or leaks

NOTE German Post stopped shipment to different countries. So shipment only to a Paypal confirmed Postal adress in another destination Situation is changing daily. So please ASK for the shipping possibilities to your country. ---------------------------------------------------------------------------------------------------------------------------------------- Original vintage tubes. Made by Siemens in Munich, West Germany. Tubes show U0 / 3 unequal codes - etched on the glass. With o getter. See pictures. E84L is the PROFESSIONAL version of EL84 / 6BQ5. Old stock. Tested on West German Funke W19S military tube tester with BEST results: two tubes measure around 46, two around 48. Good tube starts at 28, new around 45. I think tubes are NEW (NOS) or perhaps slighty used. EXCELLENT audio tube. Hard to find now! Your bid is for FOUR (4) tubes. (32 04 12 1) Watch our other auctions, too. A lot of rare German and European audio tubes available! International shipment (registered airmail): 20 USD. We ship worldwide and combine items. You can combine all items sold in any currency - we will convert the total amount and the shipping costs in one currency. Please ask for prices in case of combined shipping. NOTE: because of the ebay policy shipment to some countries is NOT possible. We will CANCEL sales from buyers with a shipping adress in such countries. Feel free to ASK about shipment to your country. International shipment will be by registered airmail. Payment by account transfer, Paypal or registered mail. All payments must be received within 10 days after the auctions end. Paypal payment only from buyers coming outside the EU, please! NOTE: EU residents have to add 19% V.A.T. ! BITTE BEACHTEN: für Käufer mit Wohnsitz innerhalb Deutschlands bzw. der EU fallen ZUSÄTZLICH 19% Mehrwertsteuer an! Important: all items sold are vintage collectors items. So no guarantees. Buyer takes all risks of using and damage - of the item itself and caused by the item! Using the item needs special knowledge - technical and about security. Inform Yourself. Only use the item when You really know how to do! Wichtig: alte Sammlerstücke - der Verkauf erfolgt, soweit gesetzlich zulässig, unter Ausschluss von jeglicher Garantie oder Gewährleistung. Insoweit keine Haftung für Mangelschäden und Mangelfolgeschäden! Auf die erforderliche Sachkunde und Sicherheitsvorschriften wird nachdrücklich hingewiesen!

Single-ended class A stereo tube amplifier. Add to Favorites Seller Join newsletter New Arrival Ending Soon View Feedback About Us Contact Us View All Categories Nobsound & Douk Audio Add-on Items US Warehouse UK Warehouse DE Warehouse AU Warehouse Digital Amplifier Tube Amplifier Audio Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Audio Processor Audio Player Music Spectrum & Clock Empty Chassis Record Player & Turntable Part Power Supply Vacuum Tubes Hi-Fi Speakers Hi-Fi Cable Transformer Radio Communication Audio Accessories Other Home Feedback Save Seller New Listed Ending Soon Contact us Store Category Nobsound & Douk Audio Add-on Items US Warehouse Add-on Items Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Music Spectrum & Clock Audio Accessories Other UK Warehouse Add-on Items Digital Amplifier Tube Amplifier Hi-Fi Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Audio Processor Music Spectrum & Clock Record Player & Turntable Part Audio Board & DIY Kit Audio Accessories Other DE Warehouse Add-on Items Digital Amplifier Tube Amplifier Hi-Fi Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Audio Processor Music Spectrum & Clock Aluminum Chassis Record Player & Turntable Part Audio Board & DIY Kit Radio Communication Audio Accessories Other AU Warehouse Add-on Items Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Music Spectrum & Clock Audio Accessories Other Digital Amplifier Multi-Function Mono Channel 2.0 Channel 2.1 Channel 4.0 Channel 5.1 Channel Tube Amplifier DIY Kit Hybrid Amplifier Mini Tube Amplifier EL34 Tube Amplifier KT88 Tube Amplifier 300B Tube Amplifier Other Tube Amplifier Audio Amplifier Mini Amplifier Integrated Amplifier Power Amplifier Audio Board & DIY Kit Preamp & Phono Stage Tube Preamp Digital Preamp Phono Preamp Passive Preamp Audio Board & DIY Kit Headphone Amplifier Mini Headphone Amp Desktop Headphone Amp Portable Headphone Amp Tube Headphone Amp DAC & Audio Adapter Audio Adapter USB DAC Bluetooth Receiver/Transmitter Digital Interface Audio Board & DIY Kit Audio Splitter/Switcher Speaker Switcher Bluetooth & XLR & MIC 2 Way 3 Way 4 Way Multiple Way Audio Processor Guitar Effects Equalizer Audio Mixer Noise Isolator Audio Player Digital Player Record Player CD Player Portable Player Music Spectrum & Clock Analog VU Meter Tube Sound Level Meter LED Sound Level Meter VFD Audio Spectrum LED Clock Nixie Tube Clock VFD Tube Clock IPS Nixie Clock Oscilloscope Tube Clock Board & DIY Kit Other Empty Chassis Small-sized Medium-sized Large-sized Personalized Record Player & Turntable Part Set-up Transformer Record Weight & Clamp Cleaning Kit Scale Gauge Platter Mat Dust Cover Needle Other Power Supply Linear Power Supply Switching Power Supply Power Supply Filter USB Charging Hub Board & DIY Kit Vacuum Tubes Shuguang Tube PSVANE Tube Tube Socket Tube Tester Probe Hi-Fi Speakers Frequency Divider Speaker Unit Hi-Fi Cable RCA Audio Cable 1/8 & 1/4 Stereo Jack Cable Speaker Cable USB Cable Optical Fiber Cable Conversion Cable Dock Cable Other Transformer Toroidal transformer Output Transformer Other Radio Communication Tesla Coil Transmitter & Receiver Signal Generator Antennas & Tuners Shortwave Radios Ham Amateur Radio Audio Accessories Volume Controller Mount Stand Bracket Feet & Pads Op Amp Headphone Current Meter Other Other Join Our Newsletter Receive our email newsletters about new items and special promotions! Sign Up Now ! Mini 6P14/EL84 Vacuum Tube Amplifier Stereo Class A Single-Ended Integrated Amp Item description Parameters: Type: Single-ended class A Output power: 4W×2 (8Ω) Power consumption: 90W Input impedance: 100KΩ Output impedance: 4Ω, 8Ω Input sensitivity: 500MV-2V SNR: 90DB Frequency response: 28HZ-25KHZ Total harmonic distortion: <1% (1KHZ) Output noise: less than 0.8mv Dimensions(L*D*H): 200mm * 156mm * 54mm Net weight: 4.1KG Default tubes: 6N2×1 (Replace tube:6DJ8 etc.), 6P14×2 (Replace tube: EL84, 6N14N etc.) Packing List: 1× Tube Amplifier 1× Power Cord 1× 6N2 2× 6P14 Payment Delivery details Return Policy About us Contact us Payment Safe and secure payment by PayPal. Delivery details Please leave VALID TELEPHONE NUMBER which is necessary and very important. Customs Clearance We are NOT responsible for any customs duties fee. We are NOT responsible for any import tax or customs delay. Most item will be shipped within 2 working days. For package less than 2KG, we use Airmail (10-25 days to most countries) and for package over than 2KG we use Expedited Service such as DHL, UPS and FEDEX (5-8 days to most countries). Return Policy Free Return Within 30 DaysWe provide return within 30 days for all items you bought on eBay, full refund and return shipping will be provided. 1-year warranty is provided for all items(Excluding: 1. Man-made damage or misuse. 2. Audio accessories and consumables such as vacuum tubes). If you are satisfied with our products and service please leave a 5-star . Feedback is very important to us just like our lives, please DO contact us before you leave a neutral or negative feedback, we will provide better solutions until you are satisfied. About us Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including Douk Audio / Nobsound / Little Bear etc. As a professional audio company, we are dedicated to design and produce the best products at the lowest prices to make HiFi affordable. We will spare no efforts to bring great products and service for customers and extremely to improve our customers listening experience. Contact us Please dont hesitate to contact us if you have any questions or comments about our items. And our working time is from Monday to Friday between 9:00 am to 06:00 pm(Beijing Time), which means we can keep on-line at: Working time Beijing(CN)Monday-Friday09:00 AM - 18:00 AMNew York(US)Sunday to Thursday08:00 PM - 05:00 AMLondon(UK)Monday-Friday01:00 AM - 10:00 AMParis(FR)Monday-Friday02:00 AM - 11:00 AM During holiday, please allow us to response you early next week. Please dont leave any negative / neutral feedback or make dispute/claim on our non-working time, thank you for your understanding and cooperation. Home Feedback Save Seller New Listed Ending Soon Contact us

Inspired by the circuit of Audio Note EL84 Push-pull amplifier. Add to Favorites Seller Join newsletter New Arrival Ending Soon View Feedback About Us Contact Us View All Categories Nobsound & Douk Audio Add-on Items US Warehouse UK Warehouse DE Warehouse AU Warehouse Digital Amplifier Tube Amplifier Audio Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Audio Processor Audio Player Music Spectrum & Clock Empty Chassis Record Player & Turntable Part Power Supply Vacuum Tubes Hi-Fi Speakers Hi-Fi Cable Transformer Radio Communication Audio Accessories Other Home Feedback Save Seller New Listed Ending Soon Contact us Store Category Nobsound & Douk Audio Add-on Items US Warehouse Add-on Items Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Music Spectrum & Clock Audio Accessories Other UK Warehouse Add-on Items Digital Amplifier Tube Amplifier Hi-Fi Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Audio Processor Music Spectrum & Clock Record Player & Turntable Part Audio Board & DIY Kit Audio Accessories Other DE Warehouse Add-on Items Digital Amplifier Tube Amplifier Hi-Fi Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Audio Processor Music Spectrum & Clock Aluminum Chassis Record Player & Turntable Part Audio Board & DIY Kit Radio Communication Audio Accessories Other AU Warehouse Add-on Items Amplifier Preamp & Phono Stage Headphone Amplifier DAC & Audio Adapter Audio Splitter/Switcher Music Spectrum & Clock Audio Accessories Other Digital Amplifier Multi-Function Mono Channel 2.0 Channel 2.1 Channel 4.0 Channel 5.1 Channel Tube Amplifier DIY Kit Hybrid Amplifier Mini Tube Amplifier EL34 Tube Amplifier KT88 Tube Amplifier 300B Tube Amplifier Other Tube Amplifier Audio Amplifier Mini Amplifier Integrated Amplifier Power Amplifier Audio Board & DIY Kit Preamp & Phono Stage Tube Preamp Digital Preamp Phono Preamp Passive Preamp Audio Board & DIY Kit Headphone Amplifier Mini Headphone Amp Desktop Headphone Amp Portable Headphone Amp Tube Headphone Amp DAC & Audio Adapter Audio Adapter USB DAC Bluetooth Receiver/Transmitter Digital Interface Audio Board & DIY Kit Audio Splitter/Switcher Speaker Switcher Bluetooth & XLR & MIC 2 Way 3 Way 4 Way Multiple Way Audio Processor Guitar Effects Equalizer Audio Mixer Noise Isolator Audio Player Digital Player Record Player CD Player Portable Player Music Spectrum & Clock Analog VU Meter Tube Sound Level Meter LED Sound Level Meter VFD Audio Spectrum LED Clock Nixie Tube Clock VFD Tube Clock IPS Nixie Clock Oscilloscope Tube Clock Board & DIY Kit Other Empty Chassis Small-sized Medium-sized Large-sized Personalized Record Player & Turntable Part Set-up Transformer Record Weight & Clamp Cleaning Kit Scale Gauge Platter Mat Dust Cover Needle Other Power Supply Linear Power Supply Switching Power Supply Power Supply Filter USB Charging Hub Board & DIY Kit Vacuum Tubes Shuguang Tube PSVANE Tube Tube Socket Tube Tester Probe Hi-Fi Speakers Frequency Divider Speaker Unit Hi-Fi Cable RCA Audio Cable 1/8 & 1/4 Stereo Jack Cable Speaker Cable USB Cable Optical Fiber Cable Conversion Cable Dock Cable Other Transformer Toroidal transformer Output Transformer Other Radio Communication Tesla Coil Transmitter & Receiver Signal Generator Antennas & Tuners Shortwave Radios Ham Amateur Radio Audio Accessories Volume Controller Mount Stand Bracket Feet & Pads Op Amp Headphone Current Meter Other Other Join Our Newsletter Receive our email newsletters about new items and special promotions! Sign Up Now ! HiFi Stereo EL84 Tube Push-Pull Power Amplifier Audio Amp Item description Warm tips: Not include tubes, please preapre by yourself. Introduction Inspired by the circuit of EL84 Push-pull amplifier. PCB Size: 170×223mm PCB thickness: 2.2 mm Power transformer requirements: AC 250V 350mA / 6.3V 4A Output transformer requirements: Primary 8K-12K ?25W Packing List 1* Assembled Board Payment Delivery details Return Policy About us Contact us Payment Safe and secure payment by PayPal. Delivery details Please leave VALID TELEPHONE NUMBER which is necessary and very important. Customs Clearance We are NOT responsible for any customs duties fee. We are NOT responsible for any import tax or customs delay. Most item will be shipped within 2 working days. For package less than 2KG, we use Airmail (10-25 days to most countries) and for package over than 2KG we use Expedited Service such as DHL, UPS and FEDEX (5-8 days to most countries). Return Policy Free Return Within 30 DaysWe provide return within 30 days for all items you bought on eBay, full refund and return shipping will be provided. 1-year warranty is provided for all items(Excluding: 1. Man-made damage or misuse. 2. Audio accessories and consumables such as vacuum tubes). If you are satisfied with our products and service please leave a 5-star . Feedback is very important to us just like our lives, please DO contact us before you leave a neutral or negative feedback, we will provide better solutions until you are satisfied. About us Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including Douk Audio / Nobsound / Little Bear etc. As a professional audio company, we are dedicated to design and produce the best products at the lowest prices to make HiFi affordable. We will spare no efforts to bring great products and service for customers and extremely to improve our customers listening experience. Contact us Please dont hesitate to contact us if you have any questions or comments about our items. And our working time is from Monday to Friday between 9:00 am to 06:00 pm(Beijing Time), which means we can keep on-line at: Working time Beijing(CN)Monday-Friday09:00 AM - 18:00 AMNew York(US)Sunday to Thursday08:00 PM - 05:00 AMLondon(UK)Monday-Friday01:00 AM - 10:00 AMParis(FR)Monday-Friday02:00 AM - 11:00 AM During holiday, please allow us to response you early next week. Please dont leave any negative / neutral feedback or make dispute/claim on our non-working time, thank you for your understanding and cooperation. Home Feedback Save Seller New Listed Ending Soon Contact us

For your consideration are two Tung Sol 6BQ5 EL84 old production These tubes were tested on a Hickok 539C where the minimum reading is 5650gm and the reading for a new tube is 8692gm or better. The tube tested at 6250gm & 9750gm

  TUBE HUNTER VACUUM TUBE GEMS THESE ARE THE SPECIFICS OF THE TUBE/TUBES/PARTS FOR SALE THESE ARE THE TUBE/TUBES/PARTS FOR SALE:  MANUFACTURER:                               WESTINGHOUSE PRODUCTION CITY:                                     MADE IN USA TUBE TYPE:    5763 DESIGNATION:                                             PENTODE YEAR:    1960s MONTH:     NA Date code match    N/A  SILK SCREEN CONDITION %:                    00% MICA:    2 PLATES:    BLACK GM %:     121%, SINGLE/PAIR/QUAD/MULTI:    SINGLE GETTER:                                                          O GETTER DATE CODE                                                    VARIES CHECK THE DATA SHEETS.  THIS TUBES SUBS WELL FOR AN EL84!! YOU HAVE TO REWIRE THE PINS  TO SUBSTITUTE !!!! THIS AUCTION IS FOR ONE SINGLE  TUBE !!!  WESTINGHOUSE NOS NIB   5763   TUBE.    On my tester a B&K 747 tester: Below 55 = BAD 55-65 = ? 65 -100 = Good 100-120+ = NOS      I want to see you happy with your purchase. I will never sell a tube that is below standard…… I have sold many tubes here on Ebay, and all my customers have been completely satisfied. I will work with you in good faith if there are any problems, or if you are unsatisfied in any way. I want your business now and in the future, so I assume you are the boss, and I am the employee. All tubes are tested for shorts, continuity, and emissions. I prefer PayPal. ALL CUSTOMERS PLEASE READ ALL NOTES BEFORE BUYING FROM ME !! 1.  RETURNS: It is my highest desire that you are completely satisfied with your purchase from me. I will bend over backwards to make sure that you are a happy customer. If anything you buy from me is less than satisfactory, message me BEFORE you either open a case or hit the “item not as described” button. Sound quality is tremendously SUBJECTIVE. For tubes returned for noise or sound quality of any kind you pay for the shipping we refund the purchase. We refund the price of the item NOT THE SHIPPING COST. If we sent the wrong tube we will of course pay for return shipping. For any tubes that are DOA we require that you send a us a picture of the shipping box to show us the damage. We test EVERY tube sent out and none should be DOA unless broken in shipping. 2.    PLEASE NOTE:  Tube silkscreen (lettering on the tubes) is VERY fragile. It can be wiped off and destroyed VERY easily. If you wipe off the silkscreen while handling the tube you diminish their value by up to 70%. DO NOT handle the tubes or hold them from the cylinder. ALWAYS hold them from the ENDS. If you are returning tubes and they are not in the same condition cosmetically I cannot give you a full refund. THIS IS VERY IMPORTANT. 3.  UNLESS YOU MAKE ARRANGEMENTS WITH US BEFORE YOU PURCHASE, YOU MUST PAY FOR ITEMS PURCHASED WITHIN 2 DAYS OR A CASE WILL BE OPENED FOR AN UNPAID ITEM!!! 4. TESTING: I test all tubes that I sell in one way or another, or I will state untested. I have a B&K 747 tube tester. This is a mutual conductance tester. It give a percentage value of gm for the tube under test and checks for shorts and grid emissions. I also use a Tektronix curve tracer for testing triodes. I give a number of evaluations for tubes. One evaluation is a screen shot of the tube with a high voltage applied to the plate. This helps the buyer see the linearity of the tube in question at the highest voltage the tube will see in a real circuit. The Curve tracer steps the triode through 10 gate/grid voltages starting with -10 volts and going to 0 volts. The lines show how the tube conducts throughout that range. At 0 volt the tube is at max conduction and is the top line on the display. It is easy at that point to take where that top line intersects the plate voltage, find the milliamp level and compare it to the datasheet. I give those numbers for you in the Item condition box. To further help the buyer I also include the Design values, for gm and ma readings in the table. This can then be compared to other tube sellers using inferior test methods such as Hickok,  Amplitrex, and other testers. The Tektronix curve tracer gives values within 3% of the actual value. The very best portable testers only can approach 10% accuracy.5.    Please note: The numbers given for gm are what I see on my tester. I DO NOT guarantee that you will see those numbers on your tester. I only guarantee that these tubes will test good, with no shorts, or gas, on a decent calibrated tester. I dont guarantee or imply anything else. 6. VERY IMPORTANT!!! Vintage tube testers almost always, due to age, have VERY LOW HEATER VOLTAGES!!!  Every tester I have ever bought is below 6 volts when selecting 6.3 volts. They average 5.8 volts. The voltage NEEDS to be 6.3 and 12.6. You can calibrate a vintage tube tester all you want. If the heater voltage is not right, you will NEVER get the right gm value. I have customers complain that their tubes are not the same as what I see on my tester. They say they have a calibrated tube tester. I have 40 tube testers. On all of them I have an outside regulated DC power supply that feeds the tube tester the correct heater voltage. 7. I dont check each and every tube for noise or tone. This is SUBJECTIVE and it is too time consuming. If you dont like the noise level or the tone we offer a hassle free refund policy.  International customers note: 1. Please wait for us to invoice you for the correct amount. If you have purchased more than one item, we must calculate how much the shipping will be. Shipping will be HIGHER due to insurance and shipping methods needed for expensive item totals. If you are buying only one item this will not be an issue. 2. Under no circumstances will we state on a US customs a declared value of less than the sale price. This is an honesty issue. We are honest with everyone to the best of our ability to do so. We want you to trust that what we say is true. There cannot be that trust, if we make false statements knowingly to anyone. If your country has tariffs/taxes so high that they cause large numbers of normally honest folks to make false statements, we urge you to work for change of those laws. 3 International buyers if you bought more than one item and want combined shipping it will ship in 2 days. 4. And all the Angels sang because the heavenly music was playing and it was turned all the way up.   Listing and template services provided by inkFrog

General descriptionDurable output pentode - 6P14P-K is used to increase the power of low-frequency signals to the required level in single-stroke and two-stroke circuits (cascades) of receivers, amplifiers and other radio devices. The radio lamp has a miniature design, in which its body is a finger glass body with rigid metal contacts on the button base.Basic technical characteristics• Voltage applied to the anode in operating mode: 250 V.• Rated current in the anode circuit: 48 mA.• Recommended incandescent voltage: 6.3 V.• Constant current in the incandescent circuit: 0.76 A.• Input / output / output electrical capacitances of the pentode: 11 / 0.2 / 7 pF.• Weight of product without packaging: 20 gr.

AS FOUND, FROM RETIRED RADIO ENGINEERS WORKSHOP CLEARANCE HEATERS CHECKED OK FOR CONTINUITY,OTHERWISE NOT TESTED.Postage and packing UK £5, in EU 14 GBP, 22 GBP Worldwide This includes Tracking I will always combine postage on multiple items where possibleAll buyers are encouraged to pay via Paypal. The description is as accurate as possible and packaging is always sufficient, see my feedback for evidence. However there may be the occasion when problems arise, in which case if the buyer is not happy with the purchase every effort will be made to resolve the dissatisfaction. Typical feed back:- You know a really great seller when things go wrong and he takes care of it.

My Ref: (V-0942) Cossor 6BQ5 EL84 valve Tested fine on my PAC912 tester Would say been well used and pins slightly bent but still fit socket fine Unboxed Combined postal discount given

RCA ADMIRAL 6BQ5 EL84 Vacuum Tube ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^Tested on an enhanced Triplet E3444 Laboratory Tester prepared by Paul Hart of Roswell, GA Industry Bogey transconductance =11,300µmhos Industry Bogey plate current = 48mA Results =8000µmhos ~38mA The measurements in this listing were taken on a Triplett 3444 modified to test the tube as an amplifier in accordance with RMA/EIA specifications, utilized by all US and most foreign tube manufacturers. This tester applies test conditions for this tube (including the precise filament voltage) and then measures transconductance (gm) in accordance with the engineering definition of gm. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. A tube must be tested in this manner to compare its test results with the manufacturer’s original intent or with other tubes of the same type. Most tube testers do not apply the test conditions required or conduct a valid gm test. For more details on the test and our test equipment, please contact us. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ USA Shipping $6I have many other types of tubes ~ No Additional Shipping ChargesAll tubes GuaranteedThank you ~~~~ Please click on the link below to view more items in my store. ~~~~~~~~ GreenGirls Guaranteed VintageTubes5

RCA Wards Airline EL84 6BQ5 Solid Disc Getter Radio Tube ***** Tested on our new proprietary tester , the E3444 Triplett/Westmore 501 : Its a Triplett 3444 / Westmore 501 that has been enhanced. This tester uses regulated power sources for the bias, plate, & screen voltages, as well as modified operating & testing procedures. Filament voltage is also controlled. Tubes are tested in accordance with the manufacturers specifications; measurements closely align with a laboratory tester built to rigorously measure vacuum tube characteristics. Tubes can be accurately matched for gm & plate current at the manufacturers specified test points or at other specified test points. ***** This tester was prepared by Mr. Paul Hart of Falls Church , Virginia. ***** ********************************************************************* Industry Bogey transconductance = 11,300 µmhos & Industry Bogey plate current = 48 mA Results = 11,500 µmhos ~ 43 mA~~~~~~~~~~~~~~~~~~~~~~~ USA Shipping $6 I have many other types of tubes ~ No Additional Shipping Charges ~ Just search my store All tubes Guaranteed 30 Days 1 ~~~~ Please click on the link below to view more items in my store. ~~~~~~~~ GreenGirls Guaranteed VintageTubes

VALVO EL84 power Output Tubes 6BQ5 Set tested Matched strong 9 each. Buyer pays all shipping. No Reserve

2x Telefunken EL84 Rhre Raritt neu geprft Verstrker Tube.. Privat Verkauf.

EL84 Rhre SIEMENS, TELEFUNKEN 3Stck NOS NIB GEPRFT TOP 3x EL 84 6BQ5 NEU.. Privat Verkauf.

Tube Ultron EL84. The Tube are new. The items are shipped with German Post. 16M

4 x Tubes Tesla EL34 with OO Getter and very good Values. The items are shipped with German Post. 9M

  TUBE HUNTER VACUUM TUBE GEMS THESE ARE THE SPECIFICS OF THE TUBE/TUBES/PARTS FOR SALE THESE ARE THE TUBE/TUBES/PARTS FOR SALE:  MANUFACTURER:                               SYLVANIA PRODUCTION CITY:                                     MADE IN ENGLAND? TUBE TYPE:    5763 DESIGNATION:                                             PENTODE YEAR:    1960s MONTH:     NA Date code match    N/A  SILK SCREEN CONDITION %:                    00% MICA:    2 PLATES:    BLACK GM %:     121%, SINGLE/PAIR/QUAD/MULTI:    SINGLE GETTER:                                                          O GETTER DATE CODE                                                    VARIES CHECK THE DATA SHEETS. THIS TUBES SUBS WELL FOR AN EL84!!YOU HAVE TO REWIRE THE PINS TO SUBSTITUTE !!!!THIS AUCTION IS FOR ONE SINGLE TUBE !!!  Sylvania NOS NIB   5763   TUBE.    On my tester a B&K 747 tester: Below 55 = BAD 55-65 = ? 65 -100 = Good 100-120+ = NOS     I want to see you happy with your purchase. I will never sell a tube that is below standard…… I have sold many tubes here on Ebay, and all my customers have been completely satisfied. I will work with you in good faith if there are any problems, or if you are unsatisfied in any way. I want your business now and in the future, so I assume you are the boss, and I am the employee. All tubes are tested for shorts, continuity, and emissions. I prefer PayPal. ALL CUSTOMERS PLEASE READ ALL NOTES BEFORE BUYING FROM ME !!1.  RETURNS: It is my highest desire that you are completely satisfied with your purchase from me. I will bend over backwards to make sure that you are a happy customer.If anything you buy from me is less than satisfactory, message me BEFORE you either open a case or hit the “item not as described” button.Sound quality is tremendously SUBJECTIVE. For tubes returned for noise or sound quality of any kind you pay for the shipping we refund the purchase. We refund the price of the item NOT THE SHIPPING COST. If we sent the wrong tube we will of course pay for return shipping. For any tubes that are DOA we require that you send a us a picture of the shipping box to show us the damage. We test EVERY tube sent out and none should be DOA unless broken in shipping.2.    PLEASE NOTE:  Tube silkscreen (lettering on the tubes) is VERY fragile. It can be wiped off and destroyed VERY easily. If you wipe off the silkscreen while handling the tube you diminish their value by up to 70%. DO NOT handle the tubes or hold them from the cylinder. ALWAYS hold them from the ENDS. If you are returning tubes and they are not in the same condition cosmetically I cannot give you a full refund. THIS IS VERY IMPORTANT.3.  UNLESS YOU MAKE ARRANGEMENTS WITH US BEFORE YOU PURCHASE, YOU MUST PAY FOR ITEMS PURCHASED WITHIN 2 DAYS OR A CASE WILL BE OPENED FOR AN UNPAID ITEM!!!4. TESTING: I test all tubes that I sell in one way or another, or I will state untested. I have a B&K 747 tube tester. This is a mutual conductance tester. It give a percentage value of gm for the tube under test and checks for shorts and grid emissions. I also use a Tektronix curve tracer for testing triodes. I give a number of evaluations for tubes. One evaluation is a screen shot of the tube with a high voltage applied to the plate. This helps the buyer see the linearity of the tube in question at the highest voltage the tube will see in a real circuit. The Curve tracer steps the triode through 10 gate/grid voltages starting with -10 volts and going to 0 volts. The lines show how the tube conducts throughout that range. At 0 volt the tube is at max conduction and is the top line on the display. It is easy at that point to take where that top line intersects the plate voltage, find the milliamp level and compare it to the datasheet. I give those numbers for you in the Item condition box. To further help the buyer I also include the Design values, for gm and ma readings in the table. This can then be compared to other tube sellers using inferior test methods such as Hickok,  Amplitrex, and other testers. The Tektronix curve tracer gives values within 3% of the actual value. The very best portable testers only can approach 10% accuracy.5.    Please note: The numbers given for gm are what I see on my tester. I DO NOT guarantee that you will see those numbers on your tester. I only guarantee that these tubes will test good, with no shorts, or gas, on a decent calibrated tester. I dont guarantee or imply anything else.6. VERY IMPORTANT!!! Vintage tube testers almost always, due to age, have VERY LOW HEATER VOLTAGES!!!  Every tester I have ever bought is below 6 volts when selecting 6.3 volts. They average 5.8 volts. The voltage NEEDS to be 6.3 and 12.6. You can calibrate a vintage tube tester all you want. If the heater voltage is not right, you will NEVER get the right gm value. I have customers complain that their tubes are not the same as what I see on my tester. They say they have a calibrated tube tester. I have 40 tube testers. On all of them I have an outside regulated DC power supply that feeds the tube tester the correct heater voltage.7. I dont check each and every tube for noise or tone. This is SUBJECTIVE and it is too time consuming. If you dont like the noise level or the tone we offer a hassle free refund policy.  International customers note:1. Please wait for us to invoice you for the correct amount. If you have purchased more than one item, we must calculate how much the shipping will be. Shipping will be HIGHER due to insurance and shipping methods needed for expensive item totals. If you are buying only one item this will not be an issue. 2. Under no circumstances will we state on a US customs a declared value of less than the sale price. This is an honesty issue. We are honest with everyone to the best of our ability to do so. We want you to trust that what we say is true. There cannot be that trust, if we make false statements knowingly to anyone. If your country has tariffs/taxes so high that they cause large numbers of normally honest folks to make false statements, we urge you to work for change of those laws.3 International buyers if you bought more than one item and want combined shipping it will ship in 2 days.4. And all the Angels sang because the heavenly music was playing and it was turned all the way up. Listing and template services provided by inkFrog

Mullard EL84 UK Made - Untested.

Vintage Pair of Amperex EL84 6BQ5 Vacuum Tubes <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><> Tested on an enhanced Tripplet E3444 Laboratory Tester prepared by Paul Hart of Roswell, GA Industry Bogey transconductance = 11,300µmhos Industry Bogey plate current = 48mA Results = 11,750µmhos ~ 54mA = 11.350µmhos ~ 48mA The measurements in this listing were taken on a Triplett 3444 modified to test the tube as an amplifier in accordance with RMA/EIA specifications, utilized by all US and most foreign tube manufacturers. This tester applies test conditions for this tube (including the precise filament voltage) and then measures transconductance (gm) in accordance with the engineering definition of gm. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. A tube must be tested in this manner to compare its test results with the manufacturer’s original intent or with other tubes of the same type. Most tube testers do not apply the test conditions required or conduct a valid gm test. For more details on the test and our test equipment, please contact us ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ USA Shipping $6 ~ Higher Overseas I have many other types of tubes ~ Just Search MY store All tubes are Guaranteed ~~~~ Please click on the link below to view more items in my store. ~~~~~~~~ GreenGirls Guaranteed VintageTubes 316

Vintage RCA 6BQ5 EL84 Radio Tube ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *** Tested on our proprietary tester , the E3444 Triplett/Westmore 501 :its a Triplett 3444 / Westmore 501 that has been enhanced. This tester uses regulated power sources for the bias, plate, & screen voltages, as well as modified operating & testing procedures.Filament voltage is also controlled. Tubes are tested in accordance with the manufacturers specifications; measurements closely align with a laboratory tester built to rigorously measure vacuum tube characteristics. Tubes can be accurately matched for gm & plate current at the manufacturers specified test points or at other specified test points.***** This tester was prepared by Mr. Paul Hart of Falls Church , Virginia. ************************************************************************** Industry Bogey transconductance = 11,300 µmhos & Industry Bogey plate current = 48 mAResults = 9000 µmhos ~ 36 mA ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ USA Shipping $6 I have many other types of tubes ~ No Additional Shipping Charges All tubes Guaranteed 30 Days THANK YOU ! ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? ???? 339

EL84 Röhre ULTRON geprüft Endstufe Röhrenverstärker. Artikel stammt aus Bastelbeständen und ist unbenutzt. Privatverkauf, keine Garantie, keine Gewährleistung und keine Rücknahme. Der Versand erfolgt ausschließlich in Deutschland

AS FOUND, FROM RETIRED RADIO ENGINEERS WORKSHOP CLEARANCE HEATERS CHECKED OK FOR CONTINUITY,OTHERWISE NOT TESTED.Postage and packing UK £5, in EU 14 GBP, 22 GBP Worldwide This includes Tracking I will always combine postage on multiple items where possibleAll buyers are encouraged to pay via Paypal. The description is as accurate as possible and packaging is always sufficient, see my feedback for evidence. However there may be the occasion when problems arise, in which case if the buyer is not happy with the purchase every effort will be made to resolve the dissatisfaction. Typical feed back:- You know a really great seller when things go wrong and he takes care of it.

Les commandes réalisées à partir des États-Unis, peuvent être soumises à des taxes dimportation et droits de douane, que lacheteur est tenu responsable de payer.4 X 6BQ5/EL84 Amperex Tubes Halo Très Fort Quad Assortis KM4 1957-9 #2Cette fiche produit est originalement écrite en anglais. Veuillez trouver ci dessous une traduction automatique en français. Si vous avez des questions veuillez nous contacter.4 tubes Amperex 6BQ5/EL84Fabriqué en Hollande Getters HaloLe lettrage est taché/manquantApparié par mACodes - KM4, delta 7D4-9C1-9K4-9C1 = 1957 & 1959Testé sur le testeur de laboratoire Triplett E3444 amélioré Résultats = 10 300 micromhos à 42 mA10 800 micromhos à 42 mA10 000 micromhos à 40 mA10 500 micromhos à 40 mABogey (100 % ou nouveau) = 11 300 à 48 mA +/- 10 %Les mesures de cette liste ont été prises sur un Triplett 3444 modifié pour tester le tube en tant quamplificateur conformément aux spécifications RMA/EIA, utilisées par tous les fabricants de tubes américains et la plupart des fabricants étrangers. Ce testeur applique les conditions de test pour ce tube comme indiqué ci-dessous (y compris la tension précise du filament), puis mesure la transconductance (gm) conformément à la définition technique de gm. Les tubes peuvent également être utilisés dans les conditions dessai pendant de longues périodes pour sassurer quils sont stables. Un tube doit être testé de cette manière pour comparer ses résultats de test avec lintention initiale du fabricant ou avec dautres tubes du même type. La plupart des testeurs de tubes nappliquent pas les conditions de test requises ou neffectuent pas de test gm valide. Pour plus de détails sur le test et notre équipement de test, veuillez nous contacter.Les conditions de test pour cette liste sont__250_Plaque Volts, __250_Écran Volts, ___-7.3___ Polarisation des volts ou résistance de la cathode*À quoi vos tubes ont-ils été testés ?**Posez des questions avant dacheter**Les mesures de cette liste ont été prises sur un Triplett 3444 modifié pour tester le tube en tant quamplificateur conformément aux spécifications RMA/EIA, utilisées par tous les fabricants de tubes américains et la plupart des fabricants étrangers. Ce testeur applique les conditions de test pour ce tube comme indiqué ci-dessous (y compris la tension précise du filament), puis mesure la transconductance (gm) conformément à la définition technique de gm. Les tubes peuvent également être utilisés dans les conditions dessai pendant de longues périodes pour sassurer quils sont stables. Un tube doit être testé de cette manière pour comparer ses résultats de test avec lintention initiale du fabricant ou avec dautres tubes du même type. La plupart des testeurs de tubes nappliquent pas les Brand Amperex Model 6bq5