RE: equivalentes for 274A

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Questions about tubes and gear that glows. FAQ

In Reply to: equivalentes for 274A posted by paco on March 1, 2012 at 11:02:43:

A preamp isn't likely to need anywhere remotely close to the 225 mA rating of the 274A. An 80 (which is rated for 125 mA) should be a perfectly good substitute. The 5Z3 needs 3A for the heater vs. 2A for the 274A, so you'd need to be sure the transformer can take the extra current.

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Follow Ups Full Thread

Topic - equivalentes for 274A - paco 11:02:43 03/1/12 (4)

RE: equivalentes for 274A - Tom Bavis 03/2/1207:56:18 03/2/12 (0)

You are going to have trouble with that 4 pin base. - Chris O 13:19:27 03/1/12 (2)

RE: You are going to have trouble with that 4 pin base. - Alpha Al 14:32:14 03/1/12 (1)

RE: You are going to have trouble with that 4 pin base. - unclestu 13:43:48 03/2/12 (0)

Follow Ups

RE: equivalentes for 274A - Tom Bavis 03/2/1207:56:18 03/2/12 (0)

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