Test results are 625/675 and 720/740 where the minimum is 475/475

Telefunken ECH81 6AJ8 Vacuum Tube Pair Diamond Bottom Logo

Qty

Used tubes from same audio channel, made in Germany. Results from test on Hickok 752A: 7000/725..

$44.99 USD

Tested 6750 mhos on Hickok 752A, where the minimum new is 4750Made in West Germany and has halo gett..

$28.99 USD

Tested very strong at 600 mhos on Hickok 752A, where the minimum new is 300 Black plate tube wi..

$11.99 USD

Tested very strong at 2750 (min 1350) and 1200/1200 (min 800/800) mhos on Hickok 752A..

$19.99 USD

Tested 650 mhos on Hickok 752A, minimum new is 475Long, ribbed gray plate tube with halo getter ..

$17.99 USD

Tested 600/675 mhos on Hickok 752A, minimum new is 475Both have Philips date codes. Gray plate and t..

$27.99 USD

Tube arrived in a GE box & is labeled Made In Western GermanyTested new and balanced at 1025/102..

$19.99 USD

Tested new and balanced at 1071/1071 mhos on Hickok 752A, minimum 650Made by Philips in Holland. Shi..

$24.99 USD

Grey plate tube. Made in West Germany with triple mica and D getter.Tested strong at 1050/1125 mhos ..

$17.99 USD

Grey plate tube, with triple mica and D getter. Tested strong at 1075/1100 mhos on Hickok 752A, m..

$17.99 USD

Made in West Germany & Fisher Radio Corporation printed on tubeTested NOS & balanced at 1100..

$24.99 USD