RE: tubes that interchange with the CV378?

Posted by Valva Actual (A) on July 29, 2020 at 15:50:53

In Reply to: RE: tubes that interchange with the CV378? posted by immatthewj on July 28, 2020 at 11:37:32:

As I said, the 5U4G/GB should be tube to use. I have tried every rectifier that could be remotely mistaken for the recommended one, and the 5U4G/GB were always better. I guess that means you don't want my NOS CV378 at a bargain price. ;)

It should be easy enough to find NOS or near-NOS 5U4G/GB out in the world, and those would be the way to go. I have not found current production to be on par with the genuine articles. If you run into trouble finding a rectifier, I have quite a few of those things...

Another topic, I settled onto RCA VT229 for the driver tube. As with the rectifier position, I have scoured the world for 6SL7 types, and most were pretty good, and I even came up with a few alternatives with unusual sonic presentations which had some appeal, but in the end the wartime RCA VT229 are the best all-rounders.

I am not including in that ranking the only 6SL7-type tube that has bettered the RCA in that driver position because it is legendary, exceptionally rare, and sells for ridiculous prices if you can find them. I refer here to the ECC35, which are old Euro-origin tubes. I think that the Mullards are the ones that people are usually looking for, but I don't know the whole story on those. Don't buy one without clear ECC35 labelling: I had a very reputable dealer try to sell me a pair of Sylvania 6SL7 which he claimed were the ECC35. Fortunately I had the exact tubes, with preserved labelling, to prove my case. My point: be careful if you go this way.

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Follow Ups Full Thread

Topic - tubes that interchange with the CV378? - immatthewj 00:23:32 07/24/20 (16)

RE: tubes that interchange with the CV378? - Valva Actual 21:08:39 07/27/20 (5)

RE: tubes that interchange with the CV378? - immatthewj 11:37:32 07/28/20 (4)

RE: tubes that interchange with the CV378? - Valva Actual 15:50:53 07/29/20 (3)

RE: tubes that interchange with the CV378? - immatthewj 16:08:50 07/29/20 (2)

RE: tubes that interchange with the CV378? - immatthewj 16:18:16 07/29/20 (1)

RE: tubes that interchange with the CV378? - Valva Actual 19:41:30 07/29/20 (0)

RE: tubes that interchange with the CV378? - Eli Duttman 01:04:20 07/24/20 (9)

RE: tubes that interchange with the CV378? - immatthewj 10:38:30 07/24/20 (8)

RE: tubes that interchange with the CV378? - Eli Duttman 14:50:53 07/24/20 (7)

RE: tubes that interchange with the CV378? - immatthewj 16:18:05 07/24/20 (6)

RE: tubes that interchange with the CV378? - Eli Duttman 21:48:31 07/24/20 (5)

RE: tubes that interchange with the CV378? - immatthewj 21:10:54 07/25/20 (4)

RE: tubes that interchange with the CV378? - Eli Duttman 21:29:08 07/25/20 (3)

RE: tubes that interchange with the CV378? - immatthewj 22:11:53 07/25/20 (2)

RE: tubes that interchange with the CV378? - Eli Duttman 02:17:40 07/26/20 (1)

RE: tubes that interchange with the CV378? - immatthewj 16:56:37 07/26/20 (0)

Follow Ups

RE: tubes that interchange with the CV378? - Valva Actual 15:50:53 07/29/20 (3)

RE: tubes that interchange with the CV378? - immatthewj 16:08:50 07/29/20 (2)

RE: tubes that interchange with the CV378? - immatthewj 16:18:16 07/29/20 (1)

RE: tubes that interchange with the CV378? - Valva Actual 19:41:30 07/29/20 (0)

RE: tubes that interchange with the CV378?

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