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Old 25th Jul 2022, 10:02 pm   #6
dmowziz
Pentode
 
Join Date: Nov 2021
Location: Toronto, Canada
Posts: 131
Default Re: Broken Tenma supply

Thanks Chris! and McMurdo and Silicon Valley

I checked the primary resistance winding. They are 2
I was getting like 1.5 ohms 0.3 ohms.

When I return home today I will give the right numbers for the resistances... Hopefully bold enough to apply mains and check the voltages. Hopefully

@McMurdo, thanks... I remember checking the diodes (all good) ,resistors all correct values... I checked the transistor, the only unusual thing was collector at ground (I havent taken the board out yet to trace path)...

How I checked the transistor : using diode mode on multimeter, BE drops more voltage than BC... Also, no short except the collector that is a short
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