[Amps] caps across rectifier diodes

[Carl]

Lets just say that they dont win any engineering awards and leave it at
that. Neither are the PS immune to failures.

Even Heath ran bare naked diodes in the SB series even tho the ancient
design diode current ratings were pretty close to the edge. The failures
there are usually traced to turn on surges thru leaky caps bringing peak
current into the failure zone. Or long key down tune up in the SSB
position plus the same leaky caps.

Carl
KM1H


----- Original Message ----- 
From: "Doug Renwick" <ve5ra at sasktel.net>
To: <garyschafer at comcast.net>; "'Paul Kraemer'" <elespe at lisco.com>;
"'Steve Flood'" <kk7uv at bresnan.net>; <amps at contesting.com>;
<rfamplifiers at yahoogroups.com>
Sent: Monday, March 02, 2009 8:32 PM
Subject: Re: [Amps] caps across rectifier diodes


> If a 1N5408 diode is considered a modern diode, then why does 
> Ameritron
> go to the added expense of adding .01M 1KV caps across each diode?
>
> Doug
>
> The train doesn't stop here anymore.