[Milsurplus] More TCS questions

[Help - trapped in surplus store]

First I plead errata insanity in yesterday's post.  That's where
I was saying "Z sub l", etc. all over the place.  These shoulda been
"X sub l", etc.

Impedance is

    Z =  R + jX

where "j" is a magic EE number connected with phase shift.

Now

> Ray Fantini asked

    does anyone know what the output impedance of a TCS really is?

No one knows.  No one knows what the output impedance of any transmitter
or, for that matter, any circuit is.  Unless you're a member of the
"conjugate match flat earth society."

But you CAN declare the range of impedances into which some circuit,
like a trtansmitter or a HiFi amp, will deliver power.

Like 50 ohms resistive for ham-job antennas.

The TCS was meant to deliver power into Lo R, hi Xc antennas.  There's
a damn table in it's book that says so.  Lo R, hi Xc antennas are the
< .25 wavelength HF shorties found everywhere in comercial service.

All the TCS-set series inductance INCLUDING the rotating output link are 
meant to introduce Xl to offset the Xc.

But ham antennas resistive & if just link used, TCS link's Xl will 
shift phase & no power will be delivered to the R.

Mike Hanz suggested the 1:4 step-up broadband (toroidal) xfrmr & I
tried it into a 50 ohm dummy load.  Nothing... confirming last
paragraph.

With the right C* in series with the link, things'll do right - for the
TCS & the command sets.  The rotating link is all that's needed to adjust
the "effective output match turns ratio" to transfer power to 50 ohms.

I say this because I was flummoxed about tank ckt. power transfer
until my PhD EE "elmer" set me right side up on the matter.

I know almost everyone here is completely consumed by up-hookage &
correct property tags.  But this may turn on a light in a couple
of places & be real valuable

You can't get this stuff in the ARRL handbook or Eye-Ken-Su sales
collateral.  But I bet there was or is a TM that told this tale to
folks besides college boys.

    Marty

*yesterday's post