[Johnson] Challenger VFO question

[Steve Rodowicz]

John,

Viking VFO 122 is the recommended HF VFO
(Heath VF-1 & HG-10 will work as will the Knight VFO and similar VFOs with
outputs of 1.75 or 3.5 Mc for use on 80M and 7 Mc for use on 40M thru 10M)

Viking 6N2 VFO for 6 Meters

73, Steve - N1SR
A satisfied former Challenger owner.

John Burch wrote:
> Hello:
> 
> Did Johnson ever "recommend" a particular outboard EFJ model VFO for the 
> Challenger transmitter?  If so, what was the VFO's model number?
> 
> Thanks very much
> 
> 73 de John
> ..
> 
> 
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