Does anyone here remember the simple CW transmitter that used a 6146 as a
keyed ocillator? It would put out about 60 watts. There was a very low
current light bulb in series with the crystal to limit the current that
could flow in the crystal circuit. I think it was in the 1959 or 60
HANDBOOK. I used a gaseous regulator tube on the screen. It didn't chirp too
badly.........Analog VFO's yes now there is a fun project!


"xpyttl" wrote in message
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"dave.harper" wrote in message
ups.com...


If you've ever built an analog VFO, these DDS parts are like black magic.
They take little in the way of support circuitry, no fretting about
layout,
no spending weeks trying to work out the temperature compensation, no
moving
around because you breathed on it, you just dial in the frequency you want
and you are spot on.

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