[Boatanchors] 1930's era cw transmitter
mac
w7qho at aol.com
Sat Jun 1 20:14:51 EDT 2013
Ronnie,
Some time ago I built up a "1930s" rig using a Taylor T-20 driven by a
42 tri-tet xtal oscillator, plug-in coils, wooden chassis and masonite
front panel. Used authentic period parts mostly but cheated on the
PS. Worked a fair amount of 20M CW DX with it from back in MD where I
was living at the time. Still have it but experienced problems with
the "modern" PS when I tried to fire it up a few days ago, go figure...
Other good period tubes giving somewhat more power output would be the
Taylor T-40, TZ-40 and T-55 (and RK & HY equivalents). For 50 watts
or more the VT-4C (211) might be a good choice. Pricey these days,
though thanks to the audiophools.
Have fun.
Dennis D. W7QHO
Glendale, CA
***************
On Jun 1, 2013, at 12:54 PM, w5sum wrote:
> howdy y'all
> I'm awaiting the arrival of my HRO Senior. I want to build up a
> 1930's era CW transmitter. This could be a cool thread.
>
> How many of you have built one and what did you use? What tubes
> would you suggest? I would like to have 50 watts minimum output,
> but higher power is great.
>
> Yes, eventually I will modulate it.
>
> Suggestions?
>
> Ronnie W5SUM
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