[ARC5] Zener Question and P-61 Info

[Bob Macklin]

If you get lost you don't bail out until you are out of fuel. If you are 
over water you ditch rather than bailing out.

Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
----- Original Message ----- 
From: "Robert Eleazer" <releazer at earthlink.net>
To: <arc5 at mailman.qth.net>
Sent: Sunday, January 09, 2011 10:31 AM
Subject: [ARC5] Zener Question and P-61 Info


> Stupid question:
>
> As far as limiting PS output voltage why could you not take a suitably 
> rated zener and put it in SERIES with the B+ line?  For low current drain 
> levels I think this would "clip" the voltage by the rating of the zener, 
> wouldn't it?
>
> This would not provide regulation but simply a constant voltage drop, 
> which is what I think you want to run a Command Set safely.
>
> So if you have a PS that is putting out 300V and you want 250 or less put 
> a 60V zener in series to get it down.
>
> Also over at http://www.nightfighter.us/ there is a description of a P-61 
> RO WWII experiences.  And it seems they lost an airplane because the 
> intercom failed!  With a failed intercom the pilot could not get radar 
> navigation help from the RO and they got lost and bailed out.  Seems 
> absurd but I can see how that would happen in such a case.
>
> Wayne
> ______________________________________________________________
> ARC5 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/arc5
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:ARC5 at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>