I have an SB221 with the SB220 mods for 10 mtrs that recently developed a high
SWR on 15 mtrs only. I can tune it down with a tuner between the driver and
the Amp although I'm not sure that's good for the grids. I have replaced the
115 pf and 150 pf caps in the input circuit on 15 mtrs and I have cleaned the
contacts on the bandswitch with no improvement. Mechanically everything looks
okay.
I suppose my next step will be to pull the coil out and see if it is okay, but
I'm hesitant to do that because I don't know where I would find a replacement.
Does anyone have any other suggestions or does anyone know where I can find
these coils.
Please reply directly to bill@spickler.net
Tnx es 73s
Bill
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