|[AMRadio] TBW 800 Hz Power Supply|
quixote2 at ix.netcom.com
Fri Jan 4 11:19:42 EST 2008
I thought most of that stuff was 400Hz? We used to have 60~400Hz
motor-generators on ship for our computers. I have a notch in my hearing
right at 400Hz courtesy of those mogens. <<<
The tale I heard re. 800 Hz aircraft supplies is that they were an extension of
the "less iron / less weight" principle, meant for use in LTA
(Lighter than air)
stuff; i.e., the Navy's N Class maritime patrol blimps!
These critters were a LOT more weight sensitive than conventional aircraft.
At 09:09 PM 1/2/2008, Mike Sawyer wrote:
> I thought most of that stuff was 400Hz? We used to have 60~400Hz
>motor-generators on ship for our computers. I have a notch in my hearing
>right at 400Hz courtesy of those mogens.
>----- Original Message -----
>From: <jkhildre at pobox.alaska.net>
>To: "Discussion of AM Radio in the Amateur Service"
><amradio at mailman.qth.net>
>Sent: Wednesday, January 02, 2008 10:04 PM
>Subject: Re: [AMRadio] TBW 800 Hz Power Supply
>As a youngster I bough a lot of WWII surplus and some of it had high freq
>dynamotor power supplies. They wee usuall thrown away and we would home
>brew a power supply.
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