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 ! 6N1 6P1 Vacuum Tube Amplifier Stereo Valve Audio Amp Board Item description Product descriptionClassic 6N1 + 6P1 stereo amplifier board 3W +3W: high quality epoxy glass fiber board, thickness 2mm.Dimensions: 185 × 57 mm, classic circuit, filament AC power supply, filament AC power supply, all ground a little ground.Finished board access to power transformers, speaker functionalityAC input high-voltage: 230V ~ 0 ~ 230V 100mA, three groups of filament input voltage: 6.3V, 6N1 0.6A, 6P1 1A.Notice: Due to different production batches, board color may vary. When the component parameters on the board are different from the schematic, the component parameters on the board are unchangedIf your power transformer is 230V, the bridge rectifier has four diodes, and the board has been suited to increase the two 1N4007 diode position.refer to chart below Package includes: 1 x amplifier board 3 x tubes 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

Tested on a fully restored TV7-DU, by Dan Nelson, pictures of evidence for this included in the listing. It was restored and calibrated on October 21st 2021. Tubes are tested for shorts. PC= Plate Current DC= Date Code Please note, TV7 data minimum is equal to 60%. For example, (insert model number here) min value 60. If the tube tests at minimum 60, that is equal to 60%. The number over (/) is the minimum test data result as described in the TV7 DU tube testing manual. So 60/ (min) 60 = 60% triode 1 13.8/32 PC 1.5 triode 2 12.3/32 PC 1.3 I mark all my tubes, so please dont waste your time seeking to send me back your old dead tubes. All testers read differently. I have sought to have my tester as accurate as possible. I will not be giving partial refunds because you have received different test result. All tubes will be shipped well, an example of how I pack is pictured in the listing. (obviously these tubes are not included) I wont be lying on a customs form I combine shipping. If the tubes are of significant value, the postage will be extra due to insurance.

Tested on a fully restored TV7-DU, by Dan Nelson, pictures of evidence for this included in the listing. It was restored and calibrated on October 21st 2021. Tubes are tested for shorts. PC= Plate Current DC= Date Code Please note, TV7 data minimum is equal to 60%. For example, (insert model number here) min value 60. If the tube tests at minimum 60, that is equal to 60%. The number over (/) is the minimum test data result as described in the TV7 DU tube testing manual. So 60/ (min) 60 = 60% triode 1 9.9/32 PC 1 triode 2 17.5/32 PC 1.9 I mark all my tubes, so please dont waste your time seeking to send me back your old dead tubes. All testers read differently. I have sought to have my tester as accurate as possible. I will not be giving partial refunds because you have received different test result. All tubes will be shipped well, an example of how I pack is pictured in the listing. (obviously these tubes are not included) I wont be lying on a customs form I combine shipping. If the tubes are of significant value, the postage will be extra due to insurance.

Welcome to bid for AUDIO ALCHEMY DAC in the BOX - Digital to Analog Converter with Tube Output UpgradeThis is high quality DAC developed by Audio Alchemy and made originally in USA in the 90 es.It is very well regarded by many audiophiles and has excellent reviews. General conditionThe DAC is in good working and excellent cosmetic condition with clean front and rear panels. It is modified with tubes fitted to be output amplifiers for the DAC main converter chip.Upgrade power supply suitable to feed the dac itself and its tube extension is added and to be supplied. Short technical description.The very decent quality and classic DAC capable for work with digital audio sources Built with the best choice of high quality components and multibit dac 18 bit resolution dac chips from Analog DevicesThis makes music sound very analogue - like with warm and nice to hear character as well as good dynamics and detalisation Tube output stage known to be as the best improvement for sonic performance of multibit dac.We performed modification of this DAC with high quality tube amplification stage based on 6J1 (EF95, 5654) low noise audio pentodes. In addition the dac is upgraded with the best quality components, in particular Rubycon Balck Gates capacitors.You may see details in pictures.Dac supplied with dedicated power supply developed especially for this model to support tube output.This power supply is a valuable upgrade over original poor quality power adaptor.All the above items are included to the auction price and shown in the above pictures. There are few options for further upgrade as post auction service and if a buyer would be interested.These options included premium quality UK Brimar 6AK5 (nos), conversion of optical input to USB digital input and some others, please ask for further details. PLEASE NOTE dedicated high quality power supply for this dac is used as serious upgrade to power both the dac section and tube stage and will be supplied with the dac. The item is to be supplied with 3.5 mm Jack DC power cable. Other cables and a computer are shown in auction pictures as example of use only and are not includedIf you need a IEC power cable to use this dac please let me know, I will do my best to supply them. As further upgrade we can offer original Brimar 6AK5 tubes to be fitted at extra cost as post-auction service.Delivery and possible return.Shipping cost of £10 quoted is related to UK mainland destinations only and includes insurance. Could be shipped any other location worldwide, but, please, ask for quotation before bidding if you are outside the UK mainland.PSU supplied with the dac can be wired for work in 110-120V and 220-240V mains and can be used worldwide.Please specify mains voltage on ordering.Please note that we ship in 5-6 working days after payment cleared as we perform test and burn-in run for every itembefore shipment. We combine shipments, just ask if you buy more than one item. In particular, any cable presented in our auctions, if purchased, will be sent with this item without extra postage. Please, note that we ship in 5 days after he payment is cleared, please allow some extra time for delivery. Attention of International bidders: we will be pleased to ship worldwide. Shipping cost of £29 quoted is initial estimation for EU only.Overseas delivery could cost from £35 (USA, China) to £39 (Australia, South America) We charge an actual minimal for international shipment, please, ask for quotation before bidding to be sure. Please, note that overseas delivery can take up to 12 working days. Item is fully tested and return is accepted within 2 week after delivery and exclusively in shape as it was shipped, i.e. perfect working condition. In this case 100% of auction price and shipment cost will be refunded. Return of nonworking, damaged or scratched item is not accepted and will be not refunded. Return shipment cost is on Buyer’s side.

DeForrest Audion DL5. Good Filament. Good cosmetics 5 volt filament Good condition.

Raytheon JRP-5654. Also known as 6AK5W. RF amplifier pentode. It is also suitable for audio use as a direct plug in replacement for the 6J1 valve and gives far superior performance when used for this. Will be carefully protected and packed for delivery.

12 x Selection Of Mains And Audio Transformers For Vintage Valve Radios And More. Sorry,but I do not know anything about these items specifically.

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.

Not only as a headphone amplifier, compatible with wide impedance range(12-200?), but also as a preamp for your other power amplifier, convenient and efficient to improve sound quality. 1*3.5 mm stereo jack input, can be connected to computer, CD, mobile phone and lossless player. 2*3.5 mm output can also be connected to digital amplifiers and active multimedia audio devices. Add to Favorites Seller Join newsletter New Arrival Ending Soon View Feedback About Us Contact Us View All Categories Add-on Items Nobsound & Douk Audio UK Warehouse EU Warehouse AU Warehouse Digital Amplifier Tube Amplifier Hi-Fi Amplifier Preamp & Phono Stage Headphone Amplifier Audio Adapter / Converter Audio Splitter / Switcher Audio Processor Music Spectrum & Clock Audio Player Record Player & Turntable Part Empty Chassis Power Supply Audio Cable Hi-Fi Speaker Valve Tube Transformer Radio Communication Module Audio Accessories Other Home Feedback Save Seller New Listed Ending Soon Contact us Store Category Add-on Items Nobsound & Douk Audio UK Warehouse Add-on Items Digital Amplifier Tube Amplifier Hi-Fi Amplifier Preamp & Phono Stage Headphone Amplifier Audio Adapter / Converter Audio Splitter & Switcher Audio Processor Music Spectrum & Clock Audio Board & DIY Kit Audio Player & Turntable Parts Radio Communication Audio Accessories Other EU Warehouse Add-on Items Digital Amplifier Tube Amplifier Hi-Fi Amplifier Preamp & Phono Stage Headphone Amplifier Audio Adapter / Converter Audio Splitter & Switcher Audio Processor Music Spectrum & Clock Empty Chassis Audio Board & DIY Kit Record Player & Turntable Part Radio Communication Audio Accessories Other AU Warehouse Digital Amplifier Multi-Function Mono Channel 2.0 Channel 2.1 Channel 4.0 Channel 5.1 Channel Tube Amplifier EL34 Tube Amplifier KT88 Tube Amplifier 300B Tube Amplifier Other Tube Amplifier Hybrid Amplifier Mini Tube Amplifier DIY Amplifier Kit Hi-Fi Amplifier Mini Amplifier Power Amplifier Integrated Amplifier Audio Board & DIY Kit Preamp & Phono Stage Tube Preamp Phono Preamp Digital Preamp Passive Preamp Audio Board & DIY Kit Headphone Amplifier Mini Headphone Amp Portable Headphone Amp Tube Headphone Amp Desktop Headphone Amp Audio Board & DIY Kit Audio Adapter / Converter USB DAC Audio Adapter Digital Interface Bluetooth Receiver/Transmitter 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 Music Spectrum & Clock Analog VU Meter Tube Sound Level Meter LED Sound Level Meter VFD Audio Spectrum Nixie Tube Clock VFD Tube Clock IPS Nixie Clock Oscilloscope Tube Clock Board & DIY Kit Other Audio Player Digital Player CD Player Portable Player Record Player & Turntable Part Set-up Transformer Record Weight & Clamp Platter Mats Disc Storage Rack Stylus & Headshell Gauge Devices Cleaning Kit Other Empty Chassis Personalized Small-sized Medium-sized Large-sized Power Supply Switching Power Supply Linear Power Supply Power Supply Filter USB Charging Hub Board & DIY Kit Audio Cable Speaker Cable RCA Audio Cable Conversion Cable USB Cable Coaxial Cable Optical Fiber Cable HDMI Cable Dock Cable Other Hi-Fi Speaker Frequency Divider Finished Speaker Valve Tube Shuguang Tube PSVANE Tube Tube Socket Other Transformer Toroidal transformer Output Transformer Choke Other Radio Communication Tesla Coil FM Transmitter & Receiver Antennas & Tuners Shortwave Radios Parts & Accessories Signal Generator Other Module Amplifier Module Phase-locked Loop Module Power Module Signal Generator module Other Module Audio Accessories Volume Controller Mount Stand Bracket Feet & Pads Op Amp Current Meter Noise Tester Other Other Join Our Newsletter Receive our email newsletters about new items and special promotions! Sign Up Now ! HiFi FU32 Valve Tube Headphone Amplifier Mini Home Stereo Desktop Audio Amp Item description Want to buy it now please click: LINK >>> 1-3 working days to most UK regions and 2-8 working days to Most EU countries for shipping from UK <<< Features Not only as a headphone amplifier, compatible with wide impedance range(12-200Ω), but also as a preamp for your other power amplifier, convenient and efficient to improve sound quality. 1*3.5 mm stereo jack input, can be connected to computer, CD, mobile phone and lossless player. 2*3.5 mm output can also be connected to digital amplifiers and active multimedia audio devices. Default Beijing FU32 vacuum tube, can be upgraded to GU-32/832; Default NE5532 op amp, can be upgraded to OPA2604, JRC4558, OPA2132, OP275 and so on for enjoying different tones. Mini size with attractive appearance, compact design makes it suitable for desktop audio system. Parameters Audio input: 1*3.5mm Jack Audio output: 2*3.5mm headphone jack(one for 12-40Ω headphone and one for 40-200Ω headphone) Power supply: DC 12V@2A(5.5/2.2mm) Tube model: Beijing FU32 Op amp: NE5532 Color: black Dimensions: (L)86 mm *(W)86 mm *(H)43 mm(Excluding the tube) Net weight: 320g Packing List 1*Headphone Amplifier 1*Power Supply 1*FU32 Tube Noise may be resulted from: 1. Input signal overload may cause distortion and noise. When this happens, please turn down the volume of the audio source until no noise and then adjust proper volume through the amp itself. 2. Low-quality audio cables, poor audio source can cause the static noise. 3. The tubes not are plugged well on the tube sockets or the two red wires are not inserted to FU32 tube. 4. Devices like routers, mobile phones will also interfere in the audio signal and may cause static noise. Payment Fast Shipping Return Policy About us Contact us Payment Safe and secure payment by PayPal. Fast Shipping The items are located in UK, and will be shipped within 1 working day, 2-3 working days to UK, 2-8 working days to most EU countries. Return Policy Free Return Within 30 DaysWe provide return with 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-Friday 09:00 AM - 18:00 AM New York(US)Sunday to Thursday08:00 PM - 05:00 AM London(UK) Monday-Friday 01:00 AM - 10:00 AM Paris(FR) Monday-Friday 02:00 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

New in Box -- New in Box -No 1LG5 Sylvania NOS Hanging Filament Radio Audio Vacuum Tube Valve See all pics for the Sylvania Radio Tube sold in this auction -- Payment Due at Auction End --

New in Box -- New in Box -No CX332 National Union NOS Radio Audio Vacuum Tube Valve See all pics for the Sylvania Radio Tube sold in this auction -- Payment Due at Auction End --

New in Box -- New in Box - No 6C6 Sylvania NOS Hanging Filament Radio Audio Vacuum Tube Valve -- See all pics for the Sylvania Radio Tube sold in this auction -- Payment Due at Auction End --

New in Box -- New in Box -No 12V6GT GE NOS Electronic Radio Audio Vacuum Tube Valve See all pics for the Sylvania Radio Tube sold in this auction -- Payment Due at Auction End --

Six (7) 12AT6 various brands vintage vacuum tubes, made in USA, Price is for all tubes pictured. We test all tubes we sell! We will combine shipping! Check out my other tubes! Normal 0 false false false EN-US X-NONE X-NONE

* * * * * * * * * * *   SYLVANIA 1C5GT Audio Electronic Vintage Radio TV Valve HAM Vacuum NOS NIB Tube NOS NIB TESTED * * * * * * * ************************************************************************************************************ Listing and template services provided by inkFrog

* * * * * * * *ONE Sylvania 12DV7 Duo Diode Triode Detector Audio Radio Valve TESTED* * * * * * * * ********************************************************************************************** Listing and template services provided by inkFrog

* * * * * * * * * * *   RCA 1C5 GT Audio Electronic Vintage Radio TV Valve HAM Vacuum NOS NIB Tube NOS NIB TESTED * * * * * * * ************************************************************************************************************ Listing and template services provided by inkFrog

RCA 12SF5. Audio triode. Octal base. Will be safely packed for delivery.

Ferranti 6Q7G Vintage Valve Tube. Octal base. Will be carefully packed for delivery

New in Box -- New in Box - No 7B5 Sylvania NOS Hanging Filament Radio Audio Vacuum Tube Valve -- See all pics for the Sylvania Radio Tube sold in this auction -- Payment Due at Auction End --

New in Box -- New in Box - No 12SG7 Sylvania NOS Hanging Filament Radio Audio Vacuum Tube Valve -- See all pics for the Sylvania Radio Tube sold in this auction -- Payment Due at Auction End --

New in Box -- New in Box - No 14F7 Sylvania NOS Hanging Filament Radio Audio Vacuum Tube Valve -- See all pics for the Sylvania Radio Tube sold in this auction -- Payment Due at Auction End --

A Sylvania Number 42 Audio pentode valve. UX6 base The type number is visible but faint Basic AVO valve tester - tests as excellent. 96%Ratings given as percentage of maximum book value Combined postage savings always possible subject to weight and suitable packing feasibility. Must ask before any payment please.

A Sylvania 6F6 Audio pentode valve. Octal base Basic AVO valve tester - tests as excellent. 92%Ratings given as percentage of maximum book value Combined postage savings always possible subject to weight and suitable packing feasibility. Must ask before any payment please.