Re: Tektronix 545 Oscilloscope fault
a classic problem part is the little 1000pF what is parallel to the primary coil of the EHT transformer. Also the disc C at secondary side (5nF or 10nF at 2kV or more) have oftenly isolation problems and must be replaced by fresh.
The rectifier tubes 5642 are mostly allready, they have a very long life time.
greetings
Martin
|