[time-nuts] Dead 5065A - Regarding A3 (Series 2644A)

[Ulf Kylenfall]

Ah..
The two A3-units I have are labelled Series 820 and 836.
Luckily, there has been no problem adjusting thetrimmer capacitors. The inductor I do not dareto touch. I know too well how brittle a stuck ferrite core is...

Can someone point to a downloadable manualwith schematics/parts list for the 2644A-version?
I did create a "Replica" of a later version of the A7 AC-amplifierusning OP-07's and precision film capacitors whichperformed very well. As long as semiconductors are availableI would not hesitate to create a replica of the A3 as wellshould it come to that.

One question for Corby Dawson: What type was the OP-Ampused in your updated integrator? I have not been able to find itor an equivalent. OK to use OPA111AM?
Best Regards
Ulf Kylenfall