Thanks Alan. You are probably right. I tried that. The 12v line is not a dead short. It measures ~5K. Something is drawing current. The 7405 is putting out 5v.
John k1ym
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On Feb 5, 2018, at 2:57 AM, Alan G4ZFQ <alan4alan@...> wrote:
I am getting current drain of over 2 amps when I connect 12 v. I see that is not correct.
I noticed I had touched Q3 with my soldering iron during construction and it was slightly melted. I removed it but that was not the problem.
Anything else I can try?
John,
It seems likely that an ohmmeter will find a short circuit to ground on the 12V line.
Maybe a whisker of solder, look carefully.
73 Alan G4ZFQ
