[R-390] Solid State rectifiers vs Tubes...a reply...
ronald j deeter
[email protected]
Fri, 27 Sep 2002 23:32:23 -0700
I've been following the thread and.....RE a conversion to SS
rectification.
a few things - beware of the higher B+ voltage generated by SS of tube
rectifiers. Potential problems, in particular resistors on the audio
board (R390A), potiental for stripping the emmissitivity of cathodes of
the tubes that have not yet come up to tempature, more heat generated by
components due to higher voltage, stress/shock from immeadiate HV, to
name a few . also remember tube rectifiers do have a voltage drop, if
memory serves 22v for 26z5's. there are ways to compensate. The
advantages and disadvantages must be evaluated carefully before
converting.
Ron, K6FSB
R390A SN 122,R388.......
On Fri, 20 Sep 2002 22:59:46 -0700 "Kenneth G. Gordon" <[email protected]>
writes:
> > I've wanted to bring up diodes in power supplies for a while now.
> For
> > the most part, the usual 1n400X doesn't produce any noise that one
> ca
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