Reply to "Putting in saftey relays"

rrmanOGR Forum Member

cjack posted:
Anybody remember the Raytheon CK722 Germanium transistor...?

Me, Me, ME!!!

My dad managed to locate one of them and gave it as a present (cost something like $4 in 1950s money). I then built a one stage audio amplifier attached to my Quaker Oats cylinder coil-cat whiskered crystal radio (later upgraded to a 1N34A germanium diode) to drive headphones. I then found plans to put in a transformer to drive a small speaker but the results were so so compared to headphones. I still have that little square can transistor somewhere as a memento to my electronics youth. Good old days.

8/30/196:53 PM

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