Available as an assembled Module and as a DIY project.
This Module is currently available.
vactrol PiLL
Phase locked loop oscillator with vactrol based controller - squawky and squelchy
| Date | Region | Description | Price | Seller |
|---|---|---|---|---|
| USA | NEW, complete kit for the NLC Vactrol PILL from Modular Addict. 
These merchants probably sell this module. Huh?
Nonlinearcircuits Vactrol PILL