[Amps] Rf choke

[k7fm]

" I plan on adding a HV capacitor and relay at the connection point if 
necessary to switch out
~1/2 of the inductance if necessary.

Tomm, KD7QAE"

CAUTION.

If you switch a capacitor in and out to segment the rf choke, under some 
circumstances the capacitar could maintain a high voltage charge on it.  If 
the capacitor is charged then the relay opened, the capacitor will maintain 
the charge, even after the voltage is removed from the amp.  Although the 
capacity may not be great enough to be lethal, it would give an serious 
tickle.

Answer is to insert a high value bleeder across the switched bypass cap. 
Alpha does this in their switched bypass cap.

73,  Colin  K7FM