Paire Cv491 Mullard K61 Square Getter Long Plate. Je n’ai pas les mesures mais elles fonctionnent parfaitement sur mon leben, aucun bruit , aucune microphonie RAS .

Brimar CV491 KB/AD (ECC82) (12AU7) 1970 Valve Tubes 470067. New old stock

Hello all, here we have a single, new old stock CV491 double triode, same as ECC82 or 12AU7 Made in England by Mullard for military use it is marked up KB/AD and has etch code 1G5 2161 Halo getter, fully tested at gm 2.8/2.8 mA/V Perfect balance from this top quality triode. Items will be very well packed for delivery. Thanks for looking. Past Times Radio

FOR SALE IS 3 x 12AU7A TWIN TRIODE VALVES. Also known as ECC82, CV491, M8136, 5814, 5963, 6189, 6067, 6680. The 12AU7A is a medium mu multi-purpose double triode in a 9 pin miniature package. There are numbers on the boxes THEY ALL APPEAR TO HAVE BEEN USED, THEY ALL TESTED AS STRONG VALVES. 10) A1 = 10 mA, gm = 1.7 mA/V. A2 = 10 mA, gm = 1.7mA/V11) A1 = 10 mA, gm = 1.7 mA/V. A2 = 10.2 mA, gm = 1.7 mA/V12) A1 = 10.5 mA, gm = 1.75 mA/V. A2 = 10.5 mA = 1.7 mA/V Note* The only difference between the 12AU7 and the 12AU7A is the A version can be used in series string filament circuits due to its controlled warm-up cathode. Otherwise, there is no difference.

4x BRIMAR 6067 Valves Date Code: 4B2/3987, 4B2/3987, 4B2/3987, 4B2/3987 NOS, rare Yellow-T version with long plate and halo-getter Tested by AVO VCM Tester Valve 1 Ia1 = 11.2(mA), gm1 = 2.5(mA/V) Ia2 = 11(mA), gm2 = 2.45(mA/V) Valve 2 Ia1 = 11.2(mA), gm1 = 2.5(mA/V) Ia2 = 11.2(mA), gm2 = 2.5(mA/V) Valve 3 Ia1 = 11.8(mA), gm1 = 2.45(mA/V) Ia2 = 12.5(mA), gm2 = 2.5(mA/V) Valve 4 Ia1 = 11.5(mA), gm1 = 2.55(mA/V) Ia2 = 10.6(mA), gm2 = 2.5(mA/V) NOS specification: Ia = 10.5(mA), gm = 2.2(mA/V) *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20221122L044

2x SYLVANIA 12AU7 Valves Tested by AVO VCM Tester Valve 1 Ia1 = 11.2(mA), gm1 = 2.4(mA/V) Ia2 = 10.8(mA), gm2 = 2.3(mA/V) Valve 2 Ia1 = 10.5(mA), gm1 = 2.2(mA/V) Ia2 = 11(mA), gm2 = 2.2(mA/V) NOS specification: Ia = 10.5(mA), gm = 2.2(mA/V) *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20220828L016

2x RCA 12AU7 Valves With size []-getter. Tested by AVO VCM Tester Valve 1 Ia1 = 9(mA), gm1 = 1.9(mA/V) Ia2 = 10(mA), gm2 = 1.8(mA/V) Valve 2 Ia1 = 8.8(mA), gm1 = 1.7(mA/V) Ia2 = 9.2(mA), gm2 = 1.8(mA/V) NOS specification: Ia = 10.5(mA), gm = 2.2(mA/V) *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20220828L011

Job Lot of Unused valves - Brimar CV491, CV492 ECC82 X 26 Total.

Brimar CV491 KB/AD (ECC82) (12AU7) 1970 Valve Tubes. Never been used

2x BRIMAR 6067 Valves Date Code: 4B2/3987, 4B2/3987 NOS, rare Yellow-T version with long plate and halo-getter Tested by AVO VCM Tester *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20221122L045

2x BRIMAR CV491 Valves Very rare BRIMAR CV491/ECC82 with long black plate and []-getter Date Code: 3H2 (1952), 5I2 (1952) Tested by AVO VCM Tester Valve 1 Ia1 = 7.7(mA), gm1 = 1.65(mA/V) Ia2 = 8.5(mA), gm2 = 1.8(mA/V) Valve 2 Ia1 = 7.8(mA), gm1 = 1.6(mA/V) Ia2 = 8.6(mA), gm2 = 1.8(mA/V) NOS specification: Ia = 10.5(mA), gm = 2.2(mA/V) *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20230522L022

2x BRIMAR CV491 Valves Date Code: HK (1952), HG (1952) Very rare BRIMAR CV491/ECC82 with long black plate and []-getter Tested by AVO VCM Tester Valve 1 Ia1 = 8.5(mA), gm1 = 1.8(mA/V) Ia2 = 7.7(mA), gm2 = 1.5(mA/V) Valve 2 Ia1 = 7.5(mA), gm1 = 1.65(mA/V) Ia2 = 8(mA), gm2 = 1.75(mA/V) NOS specification: Ia = 10.5(mA), gm = 2.2(mA/V) *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20230522L008

2x BRIMAR CV4003 Valves Date Code: 1C4/987(1954), *C4/987(1954) Rare Yellow T version with half-box plate and []-getter Tested by AVO VCM Tester Valve 1 Ia1 = 9(mA), gm1 = 2.1(mA/V) Ia2 = 8..8(mA), gm2 = 2(mA/V) Valve 2 Ia1 = 10.5(mA), gm1 = 2.25(mA/V) Ia2 = 11.2(mA), gm2 = 2.25(mA/V) NOS specification: Ia = 10.5(mA), gm = 2.2(mA/V) *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20221122L002

2x HIVAC CV491 Valves Ultra rare NOS Hivac CV491/ECC82 with welded plate and []-getter Date Code: JK (1953), JF (1953) Tested by AVO VCM Tester Valve 1 Ia1 = 12(mA), gm1 = 2.3(mA/V) Ia2 = 14.2(mA), gm2 = 2.4(mA/V) Valve 2 Ia1 = 12.8(mA), gm1 = 2.45(mA/V) Ia2 = 12(mA), gm2 = 2.35(mA/V) NOS specification: Ia = 1.2(mA), gm = 1.6(mA/V) *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20230522L002

2x BRIMAR CV491 Valves Very rare BRIMAR CV491/ECC82 with long black plate and []-getter Date Code: 3H2 (1952), 5I2 (1952) Tested by AVO VCM Tester Valve 1 Ia1 = 7.7(mA), gm1 = 1.65(mA/V) Ia2 = 8.5(mA), gm2 = 1.8(mA/V) Valve 2 Ia1 = 7.8(mA), gm1 = 1.6(mA/V) Ia2 = 8.6(mA), gm2 = 1.8(mA/V) NOS specification: Ia = 10.5(mA), gm = 2.2(mA/V) *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20230522L022

2x HIVAC CV491 Valves Ultra rare NOS Hivac CV491/ECC82 with welded plate and []-getter Date Code: JK (1953), JF (1953) Tested by AVO VCM Tester Valve 1 Ia1 = 12(mA), gm1 = 2.3(mA/V) Ia2 = 14.2(mA), gm2 = 2.4(mA/V) Valve 2 Ia1 = 12.8(mA), gm1 = 2.45(mA/V) Ia2 = 12(mA), gm2 = 2.35(mA/V) NOS specification: Ia = 1.2(mA), gm = 1.6(mA/V) *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20230522L002

2x BRIMAR CV4003 Valves Date Code: 1C4/987(1954), *C4/987(1954) Rare Yellow T version with half-box plate and []-getter Tested by AVO VCM Tester Valve 1 Ia1 = 9(mA), gm1 = 2.1(mA/V) Ia2 = 8..8(mA), gm2 = 2(mA/V) Valve 2 Ia1 = 10.5(mA), gm1 = 2.25(mA/V) Ia2 = 11.2(mA), gm2 = 2.25(mA/V) NOS specification: Ia = 10.5(mA), gm = 2.2(mA/V) *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20221122L002

2x BRIMAR 6067 Valves Date Code: 4B2/3987, 4B2/3987 NOS, rare Yellow-T version with long plate and halo-getter Tested by AVO VCM Tester *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20221122L045

4x BRIMAR 6067 Valves Date Code: 4B2/3987, 4B2/3987, 4B2/3987, 4B2/3987 NOS, rare Yellow-T version with long plate and halo-getter Tested by AVO VCM Tester Valve 1 Ia1 = 11.2(mA), gm1 = 2.5(mA/V) Ia2 = 11(mA), gm2 = 2.45(mA/V) Valve 2 Ia1 = 11.2(mA), gm1 = 2.5(mA/V) Ia2 = 11.2(mA), gm2 = 2.5(mA/V) Valve 3 Ia1 = 11.8(mA), gm1 = 2.45(mA/V) Ia2 = 12.5(mA), gm2 = 2.5(mA/V) Valve 4 Ia1 = 11.5(mA), gm1 = 2.55(mA/V) Ia2 = 10.6(mA), gm2 = 2.5(mA/V) NOS specification: Ia = 10.5(mA), gm = 2.2(mA/V) *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20221122L044

2x RCA 12AU7 Valves With size []-getter. Tested by AVO VCM Tester Valve 1 Ia1 = 9(mA), gm1 = 1.9(mA/V) Ia2 = 10(mA), gm2 = 1.8(mA/V) Valve 2 Ia1 = 8.8(mA), gm1 = 1.7(mA/V) Ia2 = 9.2(mA), gm2 = 1.8(mA/V) NOS specification: Ia = 10.5(mA), gm = 2.2(mA/V) *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20220828L011

2x SYLVANIA 12AU7 Valves Tested by AVO VCM Tester Valve 1 Ia1 = 11.2(mA), gm1 = 2.4(mA/V) Ia2 = 10.8(mA), gm2 = 2.3(mA/V) Valve 2 Ia1 = 10.5(mA), gm1 = 2.2(mA/V) Ia2 = 11(mA), gm2 = 2.2(mA/V) NOS specification: Ia = 10.5(mA), gm = 2.2(mA/V) *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20220828L016

2x Mullard ECC82 Valves Date Code: k61 R9H, *** R9F Manufactured in 1959 with Long-plate and O-getter Tested by AVO VCM Tester Valve 1 Ia1 = 11(mA), gm1 = 2(mA/V) Ia2 = 10.5(mA), gm2 = 1.95(mA/V) Valve 2 Ia1 = 14.5(mA), gm1 = 2.15(mA/V) Ia2 = 16(mA), gm2 = 2.3(mA/V) NOS specification: Ia = 10.5(mA), gm = 2.2(mA/V) *** This valve has also been tested in amplifier without any noise. *** Postage Costs I am happy to post this item to worldwide and combine postage cost on multiple purchases. 20220828L006

BrimarECC82 12AU7 ECC 82( Code: 571/1571 )ECC82/12AU7/CV491/CV4003 = 161/2161 or 571/1571 or 987/3987 LARGE Grey Ribbed Plate / O Getter! Audio Preamp Tube BOGEN AMP Tested - No microphonics TV-7/u Tested Condition Report: ** Tubes TESTED AND sounded good in my BOGEM AMP! No microphonics! ** ** I WILL COMBINE SHIPPING COST ON MY ITEMS!!! ** Tested to be in guaranteed working conditionI tested these on a High Quality Professonal Hickok TV-7/U Tester:TUBEs TEST RESULTs: ** NOTE: You will be shipping 1 of these tubes below (sold in order of item purchased from you the buyer)... Tube: 92/86 - {Minimum Rating of 56/56 for TV-7 Testers are equal to 65% of average new ratings.} If you have Questions or Comments contact me on eBay Check out the photos! TESTED WITH a (TV-7/U) FOR GAS, SHORTS, AND MUTUAL CONDUCTANCE AND ARE MOSTLY STRONG TUBES! I Combine ShippingBefore You Pay. I accept PayPal and Postal M O.Please see click to enlarge photos for condition and quality.Check out My Other Items For Sale!WILL BE SHIPPED OUT FAST! Before bidding please read my shipping and return policy. I WILL COMBINE SHIPPING COST ON MY ITEMS!!! NOTE: International buyers - THE BUYER IS RESPONSIBLE FOR SHIPPING FEES. INTERNATIONAL BIDS WELCOME. I WONT CHANGE DECLARED VALUE ON CUSTOM FORMS AND INTERNATIONAL BUYERS ARE RESPONSIBLE FOR ALL TAXES, CUSTOM FEES, and additional shipping fees. ANY RETURN WILL BE ACCEPTED BUT BUYER WILL PAY SHIPPING FEES AND I WILL NOT REFUND ANY SHIPPING FEES.*TESTED ON Calibrated HICKOK TV-7 B/U*{Minimum Ratings for TV-7 Testers are equal to 65% of average new ratings.}ALL tubes will be ran through a Daniel Nelson calibrated HICKOK TV-7 B/U for a full mutual conductance test. This is a world class tester that is calibrated by the Hickok doctor. Its test results are dead on and you can buy with confidence. If you want to know what the exact Gm rating of the tube is please message me. My Return Policy: Will not accept returns for reasons such as ordered the wrong item, change mind, not what I thought It was, wrong color ordered, item ordered.

SYLVANIA / SEIMONS 12au7/12au7a Audio Power Tube Valve TV7 Tests At 86/90. Top ring getter . Made in East Germany . Likely a Siemons . This is a rebranded tube 100%. This has a minimum value of 56 for triode 1 and 56 for triode 2 . The average new tube test value is 86.15 and 86.15 for triode 1 and triode 2 . This 12au7a / ECC82 tests at 86 and 90. I use a calibrated TV7-U which Paul Hart performed the calibration . Two days handling. Two - Eight days for delivery . Full tracking provided . Bulletproof packaging . Free shipping . The Audiophiles choice for a 12au7a /ECC82 vacuum tube dual triode valve . Thanks for looking .