[Amps] RF Chokes

[Roy Koeppe]

Concerning,

"...It's 145 microhenries, so with something around 2kV rms across it,
and its reactance of about 3.2kohm at 3.5MHz, there's 625mA of RF in the
choke. Plus the DC, of course. Assume that the choke Q is 100 (probably
being generous here) and we have 12.5 watts dissipation in the choke.
(etc.)"


Solenoid plate chokes fortunately do not 'live by inductive reactance
alone' and are usually referenced at a much lower frequency than Fo.
Except for the very lowest Fo, on most ham bands they exhibit much
higher effective impedances due to many parallel resonance modes. They
often exceed a megohm Z, running very cool.

73,    Roy    K6XK