[Milsurplus] BC-375

[Stephen M. Linscott]

On Tue, 1 Jun 2004 W7QHO at aol.com wrote:

>
> Ron,
>
> To add to the comments you've already received.....
>
>
> CW:  The amount of chirp with these sets is directly related to regulation of the HV supply.   They sound reasonably good running off a dynamotor.  My home-brew supply is only good for 10-15% and on CW the thing doesn't just chirp, it WHOOPS!
>
> Dennis D.  W7QHO
> Glendale, CA
>

According to Bob Keys, NA4G, on the Boatanchors list, if you adjust the
T/R relay properly you won't have chirp. The manual explains how to set
the contact timing so that the oscillator gets HV before the RF hits the
antenna. The rig was designed with "differential keying", but many hams
"improved" the keying circuit and signal quality suffered!  Another
argument for leaving the old rigs unmodified. :-)

                                73,  - Steve -   W5EGP

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*   Steve Linscott           Information Technology Division     *
*   linscot at rice.edu      Rice University       Houston, Texas   *
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