Re: Tektronix 7603 won't trigger
- From: Jorgen Lund-Nielsen <jorgen.lund-nielsen@xxxxxxxxxxxxx>
- Date: Fri, 19 Jun 2009 09:49:14 +0200
GanjaTron wrote:
Well, I replaced the CA3046s with a pair of CA3086s. Triggers fine
now. Having said that, there's some noticeable noise (as in
flickering) in the trace. I checked the power supply caps with a
capacitance meter, and they look ok (so do the supply lines measured
with another scope). Any ideas what else I should check?
Regards,
--Roland
You also have to check the ESR of the electrolytics with an ESR-Meter.
Often elytics have still their capacitance but the ESR goes up and than
they are nearly functionless.
Jorgen
dj0ud
.
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