[ARC5] Army/Navy transmitters from a NON COLLECTOR viewpoint, the ham version...

[Peter Bertini]

I'm probably in the wrong group... but...

Beyond the bewildering confusion deciphering between ARA/ATA, CBY/CCT,
SCR-274, BC-xxx, T-xx/ARC-5 variants... I am looking for a common
denominator..
Assuming one  is NOT interested in the correct accessories, cables,
modulators, dynamotors, etc...

And for the sole purpose of putting any variant on the air with minimal
modifications to transmitter itself... don't want
shelf queens, I want these to be usable and on the air.

1: Can either variant be either screen or plate modulated? I don't see
anything that would preclude doing so..

2: Any suggestions on how a beat-up FT-226-A tray might accommodate either
style transmitter? I am thinking having each
rear connector wired for a particular transmitter pin out, but how to avoid
accidentally putting the wrong version in the wrong
slot? One side Army, one side Navy...

3: For power... a modified Heathkit PS-23 junker... get rid of the voltage
doubler nonsense and use full wave bridges on the
high and low voltage windings. Series the two to provide around 125 vdc for
the RX, and around 500 vdc for the TX.

4: Add a half-wave voltage doubler on the 12.6 winding for DC filament
voltage for the transmitter filaments and relays.

5 Any benefit to regulating the 200 VDC for the 1626 oscillator? I suspect
it would not hurt.

6: transmitters will be modified following AB5S's suggestions regarding
relay adjustments, etc

Flame away...
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