Usagi Electric | Restoring an HP 521A Frequency Counter: Part 3 – Victory! @UsagiElectric | Uploaded August 2022 | Updated October 2024, 1 day ago.
After a 5-month long hiatus, we’re finally back into the 5221A Frequency Counter! I have a pretty good excuse for the hiatus though, which the thumbnail should spoil pretty well. They’re adorable aren’t they! Sue is the light brown one, Ten is the Calico, and Jun is the Tabby. Jun is actually from a different litter, but all three were barn rescues, so they’re all family as far as we’re concerned.
Alright, enough about the kitties, the 521A is so close to working perfectly, so let’s get to work and get it across the finish line in this one!
Part 1: youtu.be/RxWDU-G_gJs
Part 2: youtu.be/zItjyHcSrmY
If you want to support the channel please hop over to Patreon:
patreon.com/usagielectric
Also, we now have some epic shirts for sale!
my-store-11554688.creator-spring.com
Come join us on Discord and Twitter!
Discord: discord.gg/p7UsfHD
Twitter: twitter.com/UsagiElectric
Intro Music adapted from:
Artist: The Runaway Five
Title: The Shinra Shuffle
ocremix.org/remix/OCR01847
Thanks for watching!
Chapters
0:00 Intro with kitties!
2:40 Where are we at?
5:30 Let’s get it fixed
8:27 Making sure all the neons illuminate
10:42 But, we’re out of adjustment
11:35 PSU adjustment
12:46 Phantastron frequency divider adjustment
14:20 Amplitude discriminator confirmation
16:16 Crystal time base adjustment
22:45 The trifecta of HP
25:43 Kitties!
After a 5-month long hiatus, we’re finally back into the 5221A Frequency Counter! I have a pretty good excuse for the hiatus though, which the thumbnail should spoil pretty well. They’re adorable aren’t they! Sue is the light brown one, Ten is the Calico, and Jun is the Tabby. Jun is actually from a different litter, but all three were barn rescues, so they’re all family as far as we’re concerned.
Alright, enough about the kitties, the 521A is so close to working perfectly, so let’s get to work and get it across the finish line in this one!
Part 1: youtu.be/RxWDU-G_gJs
Part 2: youtu.be/zItjyHcSrmY
If you want to support the channel please hop over to Patreon:
patreon.com/usagielectric
Also, we now have some epic shirts for sale!
my-store-11554688.creator-spring.com
Come join us on Discord and Twitter!
Discord: discord.gg/p7UsfHD
Twitter: twitter.com/UsagiElectric
Intro Music adapted from:
Artist: The Runaway Five
Title: The Shinra Shuffle
ocremix.org/remix/OCR01847
Thanks for watching!
Chapters
0:00 Intro with kitties!
2:40 Where are we at?
5:30 Let’s get it fixed
8:27 Making sure all the neons illuminate
10:42 But, we’re out of adjustment
11:35 PSU adjustment
12:46 Phantastron frequency divider adjustment
14:20 Amplitude discriminator confirmation
16:16 Crystal time base adjustment
22:45 The trifecta of HP
25:43 Kitties!
