[Heathkit] HP23A Power Supply Diodes

[Jim Shorney]

1N4007 would be a good choice, but the 1N5408 is a higher current device for not much more money. Thy are a very robust diode and are my preferred choice when replacing 1N4000-series diodes in power supplies. Cheap enough at Mouser that I buy in bulk.

73

-Jim
NU0C

On Mon, 26 Oct 2020 09:53:29 -0700
"David Thorne" <thornedw at gmail.com> wrote:

> Jim,
> Perhaps you already have this but if not it will be helpful, although it
> recommends different diodes than does Jim Shorney, NU0C:
> http://www.rdfproducts.com/vr_apl_001.pdf
> 
> Dave
> K7KTB
> -----Original Message-----
> From: heathkit-bounces at mailman.qth.net
> [mailto:heathkit-bounces at mailman.qth.net] On Behalf Of Jim Shorney
> Sent: Sunday, October 25, 2020 11:20 AM
> To: heathkit at mailman.qth.net
> Subject: Re: [Heathkit] HP23A Power Supply Diodes
> 
> 
> Go with 1N5408. You will likely never need to replace them again.
> 
> 73
> 
> -Jim
> NU0C
> 
> 
> On Sun, 25 Oct 2020 14:12:53 -0400
> Jim <jim at w1jt.net> wrote:
> 
> > Hello all,
> > 
> > I came across an old HP23A that was in really bad shape.   It was 
> > literally covered in mud.  I don't know how  that happens but I guess 
> > it does.
> > 
> > Anyway, I thoroughly cleaned it, completely disassembled it and now 
> > I'm in the process of rebuilding it.
> > 
> > The parts list calls for 7 silicon diodes.   It doesn't however, give 
> > any specifications.   I'm wondering if any of you fine folks know what 
> > diodes I should purchase?
> > 
> > Thanks in advance.
> > 
> > Jim W1JT
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