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JC[_6_]

On 6/1/2016 2:03 AM, wrote:
"Do you have waveform 73 on schematic 8? That is the B start gate. Start there."

I have a square wave there that tracks the A sweep speed. However I see a flat line on the collector and emitter of Q4565. That makes it highly suspect.

I have to set it aside for a minute because I have a custom customer in tomorrow. But in the meantime I can figure out a decent replacement for Q4565. It is not that critical but I do have a little bit of respect for people who are that anal about designing.

Anyway, since the intensify function works off the ten turn pot pretty much correctly, but the intensified part never ends of course because B sweep doesn't start, that localizes the problem. Like I said, Q4565.

Thanks...

Now I just hope that ****er ain't germanium !

this might help you :

http://www.reprise.com/host/tektroni...transistor.asp

2n918