We have fun with HP 3300-series function generators, starting with the original 3300A in 1965, the cute and practical 3310A from 1970, and the full-featured 3312A from 1975. A decade of solid-state analog awesomeness, if you ask me. And many thanks to Keysight for providing the modern-day (and very digital) EDU33212, the current heir of the series.

Companion video of the HP 3300A repair:    • HP 3300A Vintage Function Generator R...  
Companion vidoe of the HP 3310A calibration:    • HP 3300A Vintage Function Generator R...  

Intro music by Hainbach:    • Making Music With Test Equipment  

Ken Shirriff DX7 chip reverse engineering: https://www.righto.com/2021/11/revers...

Chapters:
00:00 Intro, 3 HP analog generators
00:47 HP 3300A origins
02:37 HP 3300A demo
05:06 HP 3310A demo
08:17 Burst gating and single cycle
11:04 PLL (phase locking)
14:22 VCO operation and FM synthesis sounds
18:42 Hainbach test instrument music
19:24 HP 3312A demo
23:43 Crazy sounds with 3 interconnected generators
24:48 Modern Keysight EDU33212
26:09 Outtro, Hainbach performing

Our sponsors
- PCBWay: fast turn PCBs, https://www.pcbway.com
- Keysight: test instruments: https://www.keysight.com
- Samtec: connectors: https://www.samtec.com

Support the team on Patreon:   / curiousmarc  
Buy our merch on Teespring: https://teespring.com/stores/curiousm...
Get more info on the companion site: https://www.curiousmarc.com
Contact info: https://www.youtube.com/curiousmarc/a...