Hi,
Fortunately I have not had this problem but I did have to deal with a destroyed
SRD in a HP 5110A synthesizer driver a few years ago. The SRD in that device
is maintained at an elevated temperature in a little oven and as a result of a
thermostat failure it was reduced to a charred blob. W
When working on the A4 assy. the ONLY adjustments you should make are:
- Cavity frequency, unscrew locking ring and while looking at the A7 J1
signal or 2nd harmonic reading adjust for max and then lock down.
- Attenuator, Unlock with allen, adjust for same, usually pulled all the
way out. Rememb
Kejia
Rick gave you some very good information. I have to agree that the SRDs are
pretty tough from my experience. I have several 5061s. But they do need the
bias and the RF at the level indicated in the manual. Not to much not to
little.
There is also a RF attenuator knob on the multiplier. So pre
Dear Richard,
Very nice to hear from you, and thank you a lot for the help!
Indeed, I have cleaned the erosion still not working.
I am trying to now* remeasure the break voltage of the diode*.
I suspect that the doping get diffused in the isolation layer after age,
which make it a good diode, but
I extensively studied the 5061 harmonic generator when I
was designing the harmonic generator in the 5071A.
We are now going on 30 years since that work. The diode
had some HP part number. Even if you knew this part
number, you would need to have the Part Information Report
microfiche that gave
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
