[Amps] RF Chokes for the SB-220

["Robert Dorchuck W6VY" <w6vy@verizon.net>]

I am trying to rebuild a SB-220 amp.  I found what appears to be a resistor in 
place
of the RF choke on the grid of both tubes (RFC-4 and 5, 1 mh pi-wound).  The 
color
coding is yellow-violet-black-red and it measures 47 ohms which almost matches 
the
color code.

Can anyone point me to a source for the correct choke or suggest a good 
replacement.
Any help appreciated.

Thanks.

Bob  W6VY


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