This listing is for a lot of (3) good used vintage GE type 6136/6AU6WC/6AU6WB vacuum tubes. These tubes have black plates and were made for the military and are either printed JG-6AU6WC or JG-6AU6WB. A type 6136/6AU6WC tube is a premium version of 6AU6/6AU6A tube. These tubes tested great on a reliable Hickok 800A tube tester (a mutual conductance tester). Here are the readings for the tubes (as pictured from L-R) in micromhos: 2650, 2650,& 2850. ...and No shorts or gas detected! Ref: Minimum readings should be 1380 micromhos (60%) and new tubes should test at 2300 or more micromhos. These tubes all tested strong! Satisfaction guaranteed! -- $-$-$ -- Check out all the other items I have for $ale! -- $-$-$ **** FREE domestic economy shipping & handling on this item! **** *** ALL International shipments are via Priority Mail ONLY - NO exceptions! *** *** PLEASE make payment within (5) days of the auction ending. Thank you! *** *** As a seller, I promptly leave feedback after receiving positive feedback ***

RCA type 6L6GC audio output tube-black plate. Premium Audio Tube Tests Strong. Made in USA unboxed and assumed used RCA type 6L6GC audio output tube with black plates. AT code on base. Excellent tubes for vintage guitar amps, hi-fi amps, and vintage radios.

This listing is for a lot of (4) good used vintage GE type 6136/6AU6WC vacuum tubes. These tubes were made for the military and are printed JAN-6AU6WC. A type 6136/6AU6WC tube is a premium version of 6AU6/6AU6A tube. These tubes tested great on a reliable Hickok 800A tube tester (a mutual conductance tester). Here are the readings for the tubes (as pictured from L-R) in micromhos: 2775, 2775, 2725, & 2750. ...and No shorts or gas detected! Ref: Minimum readings should be 1380 micromhos (60%) and new tubes should test at 2300 or more micromhos. These tubes all tested strong and are very closely-matched. Satisfaction guaranteed! -- $-$-$ -- Check out all the other items I have for $ale! -- $-$-$ **** FREE domestic economy shipping & handling on this item! **** *** ALL International shipments are via Priority Mail ONLY - NO exceptions! *** *** PLEASE make payment within (5) days of the auction ending. Thank you! *** *** As a seller, I promptly leave feedback after receiving positive feedback ***

This eBay sale is for ONE (1) Vacuum Tube / Valve( UK ) / Rohre( DE ) / Lamp( EEU ) Calibrated TV7 Tested -ONE (1) 1954 (4 03) BENDIX JAN-CEA-5992 (Premium version of the 6V6GT) Beam Power Amplifier Vacuum Tube.Calibrated TV7 tested at Bendix Factory Data sheet new tube levels. TUBE TESTED at : Meter Reading 75.8 = 3,790 uMhos Transconductance (Gm) at 29.2 mA (Ia =Anode Plate Current)*** read complete details below *** - Date code in ink on base : 4 03 3rd Week 1954 - Large Brown Micanol base. Inked on base Bendix JAN-CEA-5992 Made in USA 4 03- Large Ribbed Boxed Black Plates- 3x Spiked Mica Spacer/Wafers- 3 Getters (Two are top-side above 3rd Mica Spacer are Angled & Bent D echa supported by single thick posts.Third Getter is a very thick large D Horseshoe Getter in the middle of the 2nd & 3rd Mica Spacers supported by2 posts( goal post).- 4 Thick Metal Support Rods- Rugged Industrial / Military JAN Tube, rigid construction, uniformity and stability.- The Bendix JAN-CEA-5992 tube is Rated at 5,000 Hours of Tube Life- This tube ships in a new Westinghouse box with a printed page of this desc. with test results. Our test set : Recent Dan Nelson restored, upgraded and calibrated (11/11/2021), TV7A/U with Digital Meter reading Transconductance in uMhos (Gm) and mA (Anode Plate Current). This tubes Condition: Lightly Used, Tested Balanced and Strong for Gm and mA. Clean Glass and Pins, Plug-in and Play conditionTV7 RE-Tested against both Bendix factory data sheets ( tube type 5992). Data sheets shown in the listed pics. ( PLEASE PREVIEW THE Bendix 5992 Data sheets in the Pics (PIC #4)-under Typical Operation Single-Tube Class A1 AmplifierBogey = Bendix 5992 tube Typical Factory New NOS characteristics for - Class A1 Audio Amplifier (Bendix 5992 tube) When Tested at Plate Supply Voltage 180V/ Screen Voltage 180V / Grid Voltage -8.5V /Heater Vf : 6.3V / If : 0.6 mA / : The Spec states : Transconductance (Gm)= TV7 meter reads= 70 = 3,500 uMhos at 29.0 mA Anode Plate Current( Ia) with Zero Signalplate current mA. All TV7 versions test at a max of 150VDC Plate Supply Voltage and 135Volts on the Screen supply voltage.As a general rule the lower the Plate Supply Voltage the lower the Gm & mA readings will be. At 150VDC Plate supply voltagea factory NOS tube will read a little lower than when testing at 180VDC Plate supply voltage.That said this tube tested above the factory stated new value when tested at 150VDC plate supply voltage. Test results : NO Shorts, No Leakage, No Gas, No Apparent Micro-Phonics detected TV7 Tested at Plate Supply Voltage 150Volts , Minimum good TV7 meter reads= 44 = 2,200 uMhosWhen tested at Plate Supply Voltage 180V the Average Factory NOS value 70 = 3,500 uMhos Transconductance (Gm)at 29.0 mA (Ia =Anode Plate Current -zero signal plate current mA) TUBE TESTED at : Meter Reading 75.8 = 3,790 uMhos Transconductance (Gm) at 29.2 mA (Ia =Anode Plate Current) *** WE COMBINE SHIPPING on Multiple Tube Purchases which SAVES $ on Shipping Costs which We refund at time of Payment. WE PACK VERY WELL AND SHIP VERY FAST (one day or same day)Low cost Shipping USPS 1st class, Low cost International shipping via eBay International Economy small package Service space available AIR-FREIGHT(allow 10days to 6weeks for delivery depending upon which World region box is delivered to). The Americas and Europe are fast.ASIA 2nd fastest. Austrialia /NZ / Pacific Islands about 3-4weeks delivery. West Asia/Middle East allow 6weeks.

for sale is one Strong tested Sylvania GB-5814A premium gold pin 12AU7A vacuum tube in original box,tests strong and balanced on our calibrated Jackson 648a tester.

For sale is One Sylvania GB-5963 Premium 12AU7 Gold Pin Nice Tube. Tested with Dan Nelson calibrated Hickok TV-7, calibrated on February 8th, 2023 with Digital Meter added. 99@15.9Ma / 88@11.5 ----good starting at 56 We combine shipping, when bidding on two or more items please wait for your final invoice. Shipping via USPS

I have 1 Excellent strong premium Rca black plate 6LQ6 tube.This tube test 101 where 70 is the minimum good and new tubes test 100 on are sencore tc162 tube tester.

I have a strong premium Rca black plate 6LQ6 tube.This tube test 98 where 70 is the minimum good and new tubes test 100 on my sencore tc-162 tube tester.I have tested this tube for shorts grid leakage gas life etc.

For sale is One Sylvania GB-5963 Premium 12AU7 Gold Pin Nice Tube. Tested with Dan Nelson calibrated Hickok TV-7, calibrated on February 8th, 2023 with Digital Meter added. 99@15.9Ma / 88@11.5 ----good starting at 56 We combine shipping, when bidding on two or more items please wait for your final invoice. Shipping via USPS

I have 6 very strong premium 10000 hour general electric 5 star grade 3 mica 5751 tubes .

I have 1 Excellent strong premium Rca black plate 6LQ6 tube.This tube test 101 where 70 is the minimum good and new tubes test 100 on are sencore tc162 tube tester.

I have 6 very strong premium 10000 hour general electric 5 star grade 3 mica 5751 tubes .

I have 1 Good strong Rca 7189 tube.This tube test 102 where 70 is the minimum good and new tubes test 100 on my sencore tc-162 tube tester.I have tested this tube for shorts grid leakage gas life etc.

I have a strong premium Rca black plate 6LQ6 tube.This tube test 98 where 70 is the minimum good and new tubes test 100 on my sencore tc-162 tube tester.I have tested this tube for shorts grid leakage gas life etc.

For sale is One Sylvania GB-5963 Premium 12AU7 Gold Pin Nice Tube. Tested with Dan Nelson calibrated Hickok TV-7, calibrated on February 8th, 2023 with Digital Meter added. 99@15.9Ma / 88@11.5 ----good starting at 56 We combine shipping, when bidding on two or more items please wait for your final invoice. Shipping via USPS

I have 1 Good strong Rca 7189 tube.This tube test 102 where 70 is the minimum good and new tubes test 100 on my sencore tc-162 tube tester.I have tested this tube for shorts grid leakage gas life etc.

I have a strong premium Rca black plate 6LQ6 tube.This tube test 98 where 70 is the minimum good and new tubes test 100 on my sencore tc-162 tube tester.I have tested this tube for shorts grid leakage gas life etc.

I have a strong premium 10000 hour rca command series black plate 5751 tube.This tube test 41-37 where 32 is the minimum good and new tubes test 48 to 50 on my calibrated tv7d/u tube tester.

For sale is One Sylvania GB-5963 Premium 12AU7 Gold Pin Nice Tube. Tested with Dan Nelson calibrated Hickok TV-7, calibrated on February 8th, 2023 with Digital Meter added. 99@15.9Ma / 88@11.5 ----good starting at 56 We combine shipping, when bidding on two or more items please wait for your final invoice. Shipping via USPS

For sale is One Sylvania GB-5963 Premium 12AU7 Gold Pin Nice Tube. Tested with Dan Nelson calibrated Hickok TV-7, calibrated on February 8th, 2023 with Digital Meter added. 99@15.9Ma / 88@11.5 ----good starting at 56 We combine shipping, when bidding on two or more items please wait for your final invoice. Shipping via USPS

I have 2 Excellent very strong Rca red 5693 tubes.

I have 1 Excellent premium syvetlana winged C EL34 tube .This tube test 98 where 70 is the minimum good and new tubes test 100 on are sencore tc-162 tube tester.

I have 1 Excellent strong sylvania 7189 tube.This tube test 72 where 46 is the minimum good and new tubes test 66 to 68 on are tv7 tube tester.

SYLVANIA 13FD7 Dual Triode Vacuum Tube TV7 Tests Strong & Balanced Premium Audio. Buyer receives a single 13fd7 dual triode vacuum tube Tested on a calibrated TV7-u valve tester . The choice of the US Military and my choice as well . Black plates , side ring getter with a clear top . Two days handling . Two- Eight business days for delivery . 100% Guaranteed . Thanks for looking !!