ADM 3a with no horizontal scan

Seth Morabito lists at
Sat Apr 9 15:21:58 CDT 2016

Well, since it was such an easy job, I took a chance and replaced the
two suspicious 7805 voltage regulators. The terminal works just fine

I'm fairly surprised that the 7805 regulators died, and that they
present this symptom (no horizontal scan) upon their death. I'm sure
there are other marginal components that will need to be replaced, so
the restoration is not yet complete until I'm confident I'm not
stressing the new 7805s too much.

Seth Morabito
seth at

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