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October 14th 03, 04:07 PM

In article ,
says...

Steve Silverwood wrote:
[This followup was posted to rec.radio.amateur.boatanchors and a copy
was sent to the cited author.]

In article ,
says...

Can anyone help me locate the schematics or, failing that, the a description
of the tube
compliment for the AN/ARC-38 ( Collins 618-S1 ? ) HF Transceiver. I have
searched the net for several hours and can't seem to find anything concrete.

If you have a 618S-1, the manual for an ARC-38 won't be much help.
The 618S-1 was crystal controlled (using a motorized switch
for remote control), and the ARC-38 used a "stabilized master
oscillator", a much more complicated unit. I believe they both had
3 parallel 6159's in the final, modulated by a pair of 6159's.
(the 6159 is a 24V heater version of a 6146).

Thanks for the clarification.

--

-- //Steve//

Steve Silverwood, KB6OJS
Fountain Valley, CA
Email:
Web: http://home.earthlink.net/~kb6ojs_steve

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