Re: [Amps] Question about separate power supply/RF section amp

[Vic K2VCO <k2vco.vic@gmail.com>]

They are cheap.

On 1/17/2013 2:05 PM, Bill Turner wrote:
> ORIGINAL MESSAGE:
> On Thu, 17 Jan 2013 13:00:07 -0800, K2VCO wrote:
>
> <snip>
> > Is this a safe arrangement? I am thinking of adding another diode from B- to 
> > chassis in
> > the RF section. I don't see how this could hurt, but it might help clamp the 
> > voltage in
> > the event of an arc.
> REPLY:
> It is pretty safe, but I would suggest using a total of four diodes,
> two back-to-back in the PS and two back-to-back in the RF deck.
>
> Normally you only need one diode for protection from arcs to ground,
> but someone posted here years ago how a weird combination of an arc
> plus a broken ground could require a second diode, reverse connected
> to the first one. Cheap insurance.
>
> Bill, W6WRT
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--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/

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