Description

1949 2 hole black plate pair, listening tested. Label faded on one. Flash highlights imperfections. Plates are slightly darker. Glass codes: D9M K9M Test 2600/2800 & 2800/3000 where 1640 is good in a calibrated Hickok 539-B tester. Listening tested for excessive noise, microphonics and good sound in my personal amp. Please see our other items for more vintage tubes & audio. Tubes guaranteed to test good or may be returned. We cannot be responsible for what tubes test in another tester or in your gear at *** plate voltage. We combine orders for shipping. We don't change values for customs. Thank You.