[Milsurplus] TCS - matching into 50 ohm pure resistive load

[Marty R's GI-stuff haunt]

Think Mike Feher sed he does it by turning a 4:1 balun backwards.  I 
responded "brilliant," tried same, & nada

Today's ham-job antennas are far cry from short, big Xc whips on
tugs, PTs, etc.s  But this ws a BC-230 thread recently.

On advice of W2CQH I put variable C in series with link & found about
130 pf made it a go 

    on TCS-13 @ 40mtrs with 'loading coil' @ 0uh stop
       thru a back-connected balun in turn thru a Bird 
       then a 50 ohm DL.  NOTE: 25W out, 60W in).

Reason is TCS link has a computed 4 microhenry L (inductance) that's gotta
be cancelled for success.  And this works out fine per math.

On 80 meters, FOUR times the C is needed because there's a squared
reciprocal governing the formula for series resonance.

The early 50s handbooks talked about tuning out link inductive
reactance when used with coax cables.  In fact "Weaver's law" was 
there to estimate L from link turns & diameter.

This successfully ends a lot of broadband transformer winding & measurement 
that were barking up the wrong tree 'til this AM

Just had to share it

Oughta work with ARC-5 tx-s too.  Of course, with 'loading coil' @ 0uh stop

MAYBE scheme never tried because

   Everybody just knew you had to convert to pi-net for success.
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   Marty