[time-nuts] Fail on HP5065A PSU repair

ed breya eb at telight.com
Mon Apr 2 23:36:00 UTC 2012


Magnus, is that the same little transformer that I sent you a while 
back? If so, did you add the PTC current limiter that I included? 
That should have saved it from failure of the driver transistors. I 
think there's a problem with that circuit, so I don't think you 
should take a chance on any more transformers without thoroughly 
checking the rest of the parts.

Ed





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