Analog VCO
Sawtooth and Triangle waveforms.
10 Octaves in tune ± 5 cents.
V/Oct and Tuning trimmers on front panel for easy adjustment. High frequency tracking on back.
Low drift and high thermal stability.
https://syinsi.com/shop/pcbpanelkits/vco-deux/
Available as an assembled Module and as a DIY project.
This Module is currently available.
Module is a 1U tile
$45