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[@Evilduckcreations]

I love watching your repair videos even more than the mailbag videos. I like the new format (separate channels for different subjects." Thank you for posting!

[@TheDefpom]

Thanks for the feedback

[@normnovotney6697]

That's a great fix! Keep those 1992's humming for another 20 years.

[@davidv1289]

EXCELLENT! Nice repair, Scott. Nice to see that counter back in service. If you search for "slotted round nut tool" you will find the tool you are looking for. Also, a razor saw is an excellent tool for cutting plastic and soft metal parts like that IC socket. Thank you for an interesting video, David

[@TheDefpom]

Thanks David

[@tedcuff9155]

I did this switch repair last year on mine. Like someone else mentioned, let the ocxo warm up for about 3 days to stabilize. Also, there is a trick in the service manual to get a 10 second gate time, and get another digit of resolution when you calibrate. I use a gpsdo as a reference for mine, since rubidiums are getting harder to get.

[@1903bretep]

A very useful video for Racal 199X counter owners with faulty panel switches but what would have made it much more useful is if you had pointed to a source of suitable replacement switches, type, dimensions, pin configuration, manufacturers part number, retailers part number etc etc in fact anything to take the guess work out of it.

[@TheDefpom]

I did in some other repairs on these counters, but they are hard to find, the source I got mine from vanished and I can’t get them anymore.

[@armandine2]

De-stuffing tool [or destuffing repair tool] seems to be a good search engine description too

[@pietroc6337]

Very interesting ! Please let me know which switches do you use. Thank you. Pietro Cremonini

[@richardmiranda5357]

Would you please provide with a fresh link for dipswitches. It seems the link in the description is expired.

[@IanScottJohnston]

GPIB would help here, you could leave them running overnight and log the results including changes to ambient temps.

[@TheDefpom]

Yeah I really need to find the time to play with GPIB... I have all the cables/adaptors!

[@zx8401ztv]

Well done, it is a pain in the bum to fix the switch problem :-( i have a racal that has less buttons/features the 1998, but it works ok. It has the same dodgy diaphrams, i bodged them a looooong time ago lol. One day... i'm not holding my breath, may do the job, i did say "may" :-D The ovan was ill when i got it, it was way off and could not be adjusted. On opening up the ovan, a well cooked board and falling apart/cooked foam fell out. I did replace a cooked npo xtal shunt cap and then it became usable, but it drifted if you staired at it hard :-D The communication board held up the start up for ages while looking for a non existant external computer, so that was switched of to stop me going madder :).

[@TheDefpom]

The switches are linked in the description if you need some.

[@w9gb]

AliExpress web link is Dead. Source for Replacement Switches ??

[@Joe_HamRadioGuy]

Those tools are called a destuffing tool. eBay Amazon have alot of them.

[@TheDefpom]

That’s right, thanks, now I just need to find some the right size for these...

[@cambridgemart2075]

That tool is known as a pin spanner or pin wrench I believe.

[@TheDefpom]

Thank you