HP 5245L Nixie Counter - Part 7: HP 5264 Preset, HP 5262 Time Interval, HP 5257 Transfer Oscillator

We test a pile of new plugins, and fix the king of them all: the HP 5257A 18 GHz Transfer Oscillator. While we are at it, we demo the HP 5264A Preset Unit and the HP 5262A Time Interval Unit. This completes our repair-a-thon! No kidding, we repaired them all, the main counter and 10 plugins!

5245L Repair-a-thon Playlist: HP 5245L Repair-a-thon

Further documentation on my website: https://www.curiousmarc.com/instrumen...

Stuff that supports the channel:
- Amazon links for the tools I use in the lab (supports the channel if you buy from there)
https://www.curiousmarc.com/amazon-links
- Channel merch on Teespring: https://teespring.com/stores/curiousm...
- Support us on Patreon: Patreon: curiousmarc

Our lovely sponsors
- PCBWay: fast turn PCBs, https://www.pcbway.com
- Electro-Rent: https://www.electrorent.com
- Keysight: test instruments: https://www.keysight.com
- Samtec: connectors: https://www.samtec.com
- R&D Microwaves: https://rdmicrowaves.com

Get more technical info on the companion site: https://www.curiousmarc.com
Contact info: https://www.youtube.com/curiousmarc/a...

00:00 Recap of previous episodes
00:43 New pile of plugins!
01:47 HP 5264A Preset Unit Plugin Test
04:11 HP 5262A Time Interval Unit Test
05:53 HP 5257A Transfer Oscillator Test
08:05 Transfer Oscillator Explanation
13:27 Fault #1 Debug
20:00 Fault #2 Debug
25:14 It works again
26:41 Now part the Apollo setup!

• #science_technology
• #curiousmarc
• #vintage_tech
• #retro_computing
• #restoration
• #electronic_repairs
• #nixie
• #frequency_meter
• #plugin
• #hp_5257a
• #transfer_oscillator