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setting pushbuttons on a 42-390
#4

What I've done because sometimes it's hard to tell if the oscillator is running and where it's oscillating is use a counter to watch it. One of those $10 counters with a couple of turns of hookup wire connected to it looped over the osc tube should be able to get a reading.

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry


Messages In This Thread
setting pushbuttons on a 42-390 - by oldfarmer - 09-22-2018, 09:56 PM
RE: setting pushbuttons on a 42-390 - by Radioroslyn - 09-24-2018, 07:45 AM



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