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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

My Ref: (V-1045) CV491 ECC82 Valve Tested fine on my PAC912 tester Unboxed Combined postal discount given

A quantity of two CV2007 double triodes. These are unusual wire ended CV491 types, overprinted with CV2007, which are electrically equivalent to commercial type ECC82, 12AU7. Marked with service code KB/DA. These have not been tested but appear to be NOS. Supplied as found in plain cartons.Combined postage normally available dependant on weight. See other listings. Thanks for looking.

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 .

Paire Cv491 Brimar Square Getter Longue Plate. Fonctionne parfaitement et tester sur mon leben, aucun bruit, aucune microphonie.

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