RE: tube measurement

Tubes Asylum

Questions about tubes and gear that glows. FAQ

In Reply to: tube measurement posted by dgaapc7 on September 5, 2020 at 08:47:57:

Likely plate current. Are there any letters prior to, or following the numbers? Like "lp"?

If so, you have a very tight matched set. Ratings within "1" are excellent.

Plate current can differ in manufactured tubes, but will still be in spec for general use. For optimum results and amp biasing, it is best to further sort (or match) tubes into groups closest in spec to each other.

Cheers!

Jonesy

"I know just enough to get into trouble. But not enough to get out of it."

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Follow Ups Full Thread

Topic - tube measurement - dgaapc7 08:47:57 09/05/20 (5)

RE: tube measurement - Jonesy 07:42:51 09/06/20 (3)

RE: tube measurement - 6bq5 18:07:41 09/06/20 (1)

RE: tube measurement - Jonesy 18:38:52 09/06/20 (0)

RE: tube measurement - dgaapc7 09:17:39 09/06/20 (0)

The numbers could represent just about anything... - Steve O 09:38:31 09/05/20 (0)

Follow Ups

RE: tube measurement - Jonesy 07:42:51 09/06/20 (3)

RE: tube measurement - 6bq5 18:07:41 09/06/20 (1)

RE: tube measurement - Jonesy 18:38:52 09/06/20 (0)

RE: tube measurement - dgaapc7 09:17:39 09/06/20 (0)

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