[Collins] 516F-2 wiring

[David Knepper]

Dr. Jerry, I have seen both fuses in the primary leads and a double throw 
single throw switch in both lines.  Is that the "best" solution.

Thanks

Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
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----- Original Message ----- 
From: "Dr. Gerald N. Johnson" <geraldj at storm.weather.net>
To: <collins at mailman.qth.net>
Sent: Tuesday, December 04, 2007 12:17 AM
Subject: Re: [Collins] 516F-2 wiring


> On Mon, 2007-12-03 at 20:35 +0000, k2qde at optonline.net wrote:
>> Yes, but only with regard to the wiring of the fuse socket. Some safety 
>> issue I recall "with which lead goes to the chassis end of the socket."
>> Stu
>>
> There's a little bit to that, but the main concern is that with the
> switch in the neutral, all the primary wiring beyond the open switch is
> hot with respect to ground. If the switch is in the hot side, then only
> the wiring up to the switch is hot with the switch open. That's the
> safety angle. Otherwise either way successfully shuts the power supply
> off, but an unwanted ground is more likely to turn the power supply on
> when the switch is in the neutral side.
>
>
> -- 
> 73, Jerry, K0CQ, Technical Advisor to the CRA
> All content copyright Dr. Gerald N. Johnson, electrical engineer
>
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