[R-390] SS Rectifier Replacements

[David C. Hallam]

Losing any heat would be desirable, but my motivation was to get rid of the
failure prone 26Z5W tubes without increasing the B+ voltage and the price
was right.

Thanks for your input.

David

-----Original Message-----
From: Llgpt at aol.com [mailto:Llgpt at aol.com]
Sent: Thursday, October 14, 2004 2:17 PM
To: dhallam at rapidsys.com; r-390 at mailman.qth.net
Subject: Re: [R-390] SS Rectifier Replacements

I ordered a replacement for a 5U4 on a HQ-180 a couple of years ago, worked
out very nicely. Well constructed etc. But, it was just as hot as the
original tube was, so no relief from the approximately 15 watts of heat.

Les Locklear


In a message dated 10/14/2004 12:23:59 PM Central Daylight Time,
dhallam at rapidsys.com writes:
Has anyone had any experience with the Weber Copper Top solid state
replacement rectifiers?

I just ordered a pair to replace the 26Z5W diodes in my R-390.  They are
supposed to be plug in and have the same electrical drop characteristics as
the vacuum tube.

I was quoted a price of $10.00 each for them.  That is a cheaper price than
buying new tubes.

The only tubes I have ever had fail in my R-390 are the 26Z5W and the 6082.

David C. Hallam
KC2JD