Re: [time-nuts] question about HP 5601a harmonic generator

2017-12-24 Thread Kejia Lee
r wise be OK at DC? > Somehow let the pixie dust escape without letting the > smoke escape. Seems unlikely. > > Also check the drive circuitry. SRD's need tricky components > to make them "step" correctly. Again, poor grounding due > to corrosion could spoil the harmon

[time-nuts] question about HP 5601a harmonic generator

2017-12-24 Thread Kejia Lee
Dear All, Happy Christmas! May I know if anyone knows the part number or the specification of the step recovery diode in the harmonic generator for the old HP 5601A cesium frequency standard? I recently received this toy. The cesium tube seems to be OK, and I had located the problem being no 9GH