Re: S-52 tunnel diode

Don Black <donald_black@...>

Look at the ONET8501; 25 pS rise and fall and selectable output up to 900 mV.

Don Black.

On 09-Aug-13 9:56 PM, Alex wrote:

You know, these types of risetimes are in the domain of logic chips these days like the SY58601UMG. Even comparators like the ADCMP572. Not quite 25ps, but maybe close enough.

Of course you have to deal with fine pitch QFN packages.

--- In TekScopes@..., "sander.slang" wrote:
> Has somebody experience with the tunnel diode CR69 inside a S-52 pulse generator head?
> I know they can be easily damaged and I would like to buy a spare part in case it dies. After some study on this forum I discovered that somebody mentoined that they are very difficult to buy and for some tunnel diodes (maybe other brand) can have a low lifetime. Any experience with this?
> And now almost 40 years later are there no good replacement parts or even faster tunnel diodes? It would be nice if I can experiment with this and make my own tunnel diodes enclosures on a lathe.

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