[ARC5] Receiver Tube Substitution

[WA5CAB at cs.com]

For the third time tonight, the BC-779 and other SP-200 Series receivers 
used a 6L7 1st mixer, not a 6SA7 and  and not a 6K8.  The HF Osc was a 
separate 6J7.

In a message dated 12/18/2016 15:58:33 PM Central Standard Time, 
1oldlens1 at ix.netcom.com writes: 
>     The BC-779 and other Super Pro receivers used a 6K8 mixer, even 
> noisier than the 6SA7. It was about the best of a bad lot at the time. 
> 

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480
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