I sure would like to have this info on how to qsk the
sb220.
--- N4YG <n4yg@comcast.net> wrote:
> I just want to thank everyone who advised me to buy
> the RF Parts 3-500ZG tubes for my SB-220. I am very
> pleased with the tubes. I have about 20% more output
> power and it is almost unbelievable how much cooler
> the amp runs.
>
> I also completed the QSK mod for the radio, based in
> large part on the info on Rich Measures' web site. I
> am also very please with that and all works well
> with the OMNI VI +.
>
> I would like to mention one thing. I believe that
> many of you have installed the Soft Key mod in the
> SB-220. I have studied the schematic for Soft Key
> extensively. I have a much simpler circuit which you
> can build in a short time for an expenditure of only
> a couple of bucks. It works great. I do not know if
> the name "Soft Key" is intended to be descriptive of
> the mod or not, but its keying is certainly not
> soft, in fact, why would one want to key the
> amplifier T-R relay softly. Anyone who wishes to
> know how to build and install my circuit can obtain
> details by sending me an email.
>
> Joe
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