It is often said in amateur circles that the choke is there to provide a safety
ground if the feed capacitor from the plate goes short circuit. In that case,
the choke has to be pretty 'hefty' in that it will need to blow the HV fuse or
whatever without burning up itself, and the usual 2.5mH choke will literally be
toast long before that happens with a big amplifier. As Rich says, to just
bleed the dc of the tuning and loading capacitors, resistors are adequate.
I've never had a case of the feed capacitor going short circuit, although that
doesn't mean it hasn't happened.
73
Peter G3RZP
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