RE: if you need tubes check Guitar Center, Sweetwater, Musicians Friend etc

Yes. Originally, they came in a 1-10 scale which was based on current draw. The 10's were the cleanest, and required the most negative grid voltage. The 1's drew more current with a given amount of grid bias. They had less clean headroom before breaking up.

Later, they changed to three ranges, low mid and high.

The higher numbered ones worked better for hi-fi equipment.

I didn't use many of their power tubes. I bought large quantities of Sovtek and matched them myself.

I did like their GT preamp tubes, though. Supposedly they listened to each tube and rejected a good percentage of them because of noise or microphonics. They were guaranteed low noise.

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Follow Ups Full Thread

Topic - How can audio research survive... - itolduso1000timesb4 02:00:01 05/10/23 (14)

Why do they have to be Russian? Why not JJ? nt - Sondek 09:03:18 05/13/23 (8)

I don't mourn the loss of KT 120s and KT 150s - garymuffley 12:46:10 05/13/23 (5)

RE: I don't mourn the loss of KT 120s and KT 150s - Mendel 08:03:04 05/16/23 (0)

RE: I don't mourn the loss of KT 120s and KT 150s - Mendel 13:53:59 05/15/23 (0)

RE: I don't mourn the loss of KT 120s and KT 150s - hahax@verizon.net 19:54:04 05/13/23 (2)

RE: I don't mourn the loss of KT 120s and KT 150s - Sondek 06:36:28 05/14/23 (1)

RE: I don't mourn the loss of KT 120s and KT 150s - f1jim@yahoo.com 15:38:33 05/16/23 (0)

Only one source - Jack G 12:18:53 05/13/23 (1)

RE: Only one source - Sondek 12:27:09 05/13/23 (0)

if you need tubes check Guitar Center, Sweetwater, Musicians Friend etc - Story 02:57:14 05/11/23 (4)

RE: if you need tubes check Guitar Center, Sweetwater, Musicians Friend etc - Alpha Al 05:59:18 05/11/23 (3)

RE: if you need tubes check Guitar Center, Sweetwater, Musicians Friend etc - Jonesy 12:00:32 05/13/23 (2)

RE: if you need tubes check Guitar Center, Sweetwater, Musicians Friend etc - Alpha Al 17:05:33 05/13/23 (0)

RE: if you need tubes check Guitar Center, Sweetwater, Musicians Friend etc - Story 12:25:32 05/13/23 (0)

Follow Ups

RE: if you need tubes check Guitar Center, Sweetwater, Musicians Friend etc - Alpha Al 17:05:33 05/13/23 (0)

RE: if you need tubes check Guitar Center, Sweetwater, Musicians Friend etc

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