TA-0407: Racal Dana 9918 Frequency Counter #2 - Repair Calibrate Cleanup
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- čas přidán 23. 08. 2024
- Racal 9918 from 1975 , Part 2, we actualy fix it this time :)
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#dana #racal #9918
Nice unit. You are right about those old ribbon cables, especially that big.
Thanks, yes very risky.
I too love freq counters. You may have more of them than I do, but I doubt it. It seems like I get a broken one at every ham swap for $10 or $20 to fix.
I've had the frequency addiction eve since I built a TRF WWVB receiver for a lab reference before the days of GPS receiver references. Then I bought an HP 524 that hurt my back, so I resold it for half of what I paid for it. I loved it. Dials, knobs, Nixies, switches, It was a work of tech art. It was very stable after being in operation 24/7 for 20 years at a TV transmitter site before I bought it. But if I'd kept it it would have crippled me. Those aren't boat anchors. Those are the whole boat.
It doesn't help that I sometimes do contract repair work for the Time and Frequency group at NIST in Colorado. I'm like a kid in a candy shop when I see a rack array of 8 old 5061B's feeding WWV, and I feel like I'm in a church when I stand in the room with NIST-F1 with its correction for the tidal pull on the east and west coasts each day. :)
Yes you can never have too many :)
Very nice counter, Tony. Good to see it cleaned up, calibrated and fully functional. Racal-Dana make high quality instruments - I have a 9035 counter that I repaired that has a similar OXCO and it also is easily adjusted and very stable. Regards, David
Thanks David, yes it seems they are for life or outlive us :)
Well done!
Thank you!
I love counter videos! Very nice 👍
Yes :) me too, and more coming
Like a PRO. 😉👌
Thank you!
Nice work!
Thanks!
That is a nice counter! So much extra room in there, it just BEGS for a rubidium oscillator mod!
Space enough for mods for sure!
@@TonyAlbus I actually just scored a second HP 53131A with the 3GHZ option. I plan to install one of the new GPSDO boards in it! I can hardly wait!!! 🤩
@@Runco990 Wow! thats cool! hope it arrives fast
One of the Racal Counter options was a rubidium oscillator.
@@anandarochisha Thats cool... bit i will not be looking for it becouse of the gpsdo lab reference i use anyway.
fajny miernik :)
Thank you!
Nice of you to use the correct transistor, but seeing the job it is doing, pretty much any transistor would be fine.
Yes agreed, but 50 cents and 2 weeks waiting to keep it original, why not.
@@TonyAlbus Quite right, I suppose. It's not as if you were in a hurry.
Hi Tony, sorry for the question, but very interesting, do you buy all this yourself as a collection? Or is it all very inexpensive?
Is it really possible to have such a laboratory?
Hi, result of 30 years of collecting.