[time-nuts] Re: Repairing an HP 5065 (Jean-Charles Billebault)

[Poul-Henning Kamp]

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Ulf Kylenfall via time-nuts writes:


> The only thing I have not done is to replace the old DTL synthesizer with either
> a TTL-version if I can find/build one or recreate that design with a microprocessor controlledsynthesizer.

Any tiny microcontroller with a PWM output and 5V tolerance will do the job.

I used a 8-pin DIL ARM chip when the unobtainium delay-chip in the divider got flakey.

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