Hello Fellow Topbanders:
I have just started the process of converting a MLA-2500 amplifier from
it's original 8875 tubes to Gi-7b tubes. Current;y I can run only abut
400 watts on Topband, (not from the MLA=2500, I have no tubes for it)
The conversion requires a RF Choke in the filament lines. I have
searched the Handbook, and looked at several schematics with no luck.
Please, can someone out there advise the value of reactance required for
this effort. Most construction articles recommend #12 wire, which in
this case, appears to be significant over kill, as the heater current is
only 4 amps total.
Thanks & 73,
Mike, W5UC
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Topband Reflector
