[RFI] Samlex SEC-1235M RFI test report

[Jim McCook]

This is a great power supply, but has a very common failure mode:  Two 
switching transistors.  They are two rectangular gray units mounted 
together.  One of my friends who fixes radios in my area has a kit to 
repair this PS consisting of a bag full of those switchers and 8A 
fuses.  Mine failed after 12 years.  He fixed it in several minutes.  A 
useful mod is to put a 100 ohm 1w resistor between the negative (black) 
fan lead and the negative DC output terminal.  This allows the fan to 
run constantly at a very low level, which prevents the full loud fan 
speed from coming on with normal use.  73, Jim W6YA