05-02-2025, 11:44 PM
(This post was last modified: 05-02-2025, 11:45 PM by DrStrangelove.)
Well I didn't know that: a x100 probe will kill an oscillator.
And poking about with a dvm will spur it back into life.
The 2nd coil is wound and eventually oscillations were achieved.
The marked BCY70 seemed reluctant, however some Bi-Pak unmarked untested could be anything in TO-92 sang quite happily.
And I've got a tobacco tin full of them. ROTF.
I think they were out of a pack of a 1000 I bought some time in 1973.
The only remaining question being: what did I want 1000 unmarked transistors for in the first place.
And poking about with a dvm will spur it back into life.
The 2nd coil is wound and eventually oscillations were achieved.
The marked BCY70 seemed reluctant, however some Bi-Pak unmarked untested could be anything in TO-92 sang quite happily.
And I've got a tobacco tin full of them. ROTF.
I think they were out of a pack of a 1000 I bought some time in 1973.
The only remaining question being: what did I want 1000 unmarked transistors for in the first place.
