422a rectifier for a 5ar4?
Thinking out loud. The 274b doesn't have quite the current needed and direct heated needs to be accounted for. The 422a is indirectly heated and an octal socket. These are supposed to be lovely sounding rectifiers.
JD
WE 422A swap ?
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WE 422A swap ?
by jeffdavison » Thu Dec 28, 2006 3:20 am
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Re: WE 422A swap ?
by Uncle Ned » Fri Dec 29, 2006 6:31 am
jeffdavison wrote:422a rectifier for a 5ar4?Thinking out loud. The 274b doesn't have quite the current needed and direct heated needs to be accounted for. The 422a is indirectly heated and an octal socket. These are supposed to be lovely sounding rectifiers. JD
I've done that before (used 422A in an ST70)... beautiful tubes if the price tag doesn't bother you, but they may last long enough to make up for much of the price difference between them and a 5AR4.. good NOS 5AR4 often aren't a lot cheaper!
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