[GreenKeys] Hal 6850 RTTY Terminal

[John Hargett]

Jeff

Can’t help you on the power switch but the power connector is a Philmore 8464 2 pin ac/dc plug for old ranger,Royce,Robyn, midland CB’s.  The jack is a CBJ2B.  I picked up one couple of years ago from a fellow HAM that was clearing out his garage.  Had to recap the whole thing as several had leaked and came close to damaging the pcb.  Did have to replace the keyboard encoder ROM IC as the keyboard was inop.  Just have to chase down a little bounce on some of the keys.  

Good luck.   Really a pleasure to see it work again.  

73
John
KG5YLG 

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Sent from my iPhone

> On Apr 17, 2023, at 7:30 PM, Jeffrey Golas <jeffg at junknet.net> wrote:
> 
> Hey all, I picked one of these up recently and it needs a little love. Would anyone know the name or part # of the power switch as well as the power plug? I might have a cord that'll fit but it looks unusual for a 12v connection.
> 
> Last but not least, anyone have a sample circuit to adapt the keying output to loop? Manual says not to switch high voltage directly. I guess a simple optocoupler?
> 
> Jeff KC3GJX
> 
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