Thursday, February 16, 2017

Random work on restorations

HEATHKIT HW-100 SSB RESTORATION

Today I prepped the HP-23 power supply for the update kit that is coming. All the capacitors, resistors and diodes inside are removed, as are the tie strips. A single PCB has the replacement parts installed and it will sit inside the power supply enclosure. 

HEATHKIT V7 VTVM RESTORATION

I took the VTVM apart, checked the circuit board and it seemed fine. I powered up with the parts loose and it worked perfectly. Put it all back together, and the bad behavior is back! I did this a few times and can't figure out what intermittent problem is causing this. Frustrating. I will have to start tracing circuits and monitoring voltages until I can narrow in on a suspect area.


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