[Amps] Alpha 77D anode choke swap?

[Rob Atkinson]

>You should do the math.

Exactly what math is this?


>A 6200 pf cap would suck (in almost all cases, unless your having Draloric
>build you custom caps) at 10 meters.

Tell that to VE7RF

>A high value and low value capacitor in parallel give differing values of
>reactance at different frequencies. They will also have different resonance
>points.

You are correct, however that technique is usually applied in circuits
such as extremely broad banded RF preamps and audio amplifier bypass
to cover a frequency range of several orders of magnitude.  It is not
necessary for a HF RF power amplifier but if you want to do it,
there's nothing wrong with that.  Your effective total bypass
capacitance will pretty much be close to the total value though across
HF.


>This is ham radio amplifier 101, in almost all handbooks and amplifier
>tutorials since the 60s.

Really?   I'd like to see one of these handbooks.   Please point me to
one.  I'm willing to learn and be corrected.

VE7RF:  What is this "argument" of which you speak?  I consider this
constructive dialog.

Your response is lengthy and all over the place and conveys
observations and diversions and subjective assessments.  I deal in a
world of facts.  I don't have time to plow through 1000 words.  Also,
this amps reflector sucks.  It takes 5 days for my posts to get
distributed.   I don't have time for that either.

73

Rob
K5UJ