[BC] What are these?

[Powell E. Way III W4OPW]

--- Milspec390 at aol.com wrote:

> 51J-4? In which photo? Not the one posted. This is a
> 51S-1. 'J-4, 
> sometimes referred to as R-388A, almost identical in
> appearance to 
> R-388/51J-3. 'J-4 distinguished by addition of lever
> peripheral to 
> BFO PITCH knob, to select 1, 3, or 6 Kcs filters.
> 
> 
> Is there another photo depicting 51J-4? Curious.

Dunno, when you go to the page its says there's a J4.
So it's not. I have a 51J3.  


Powell

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POP email is powell at backroads  DOT     net