dual LFO with difference rectifier

Two wide ranging LFOs; from approx 830 Hz down to 0.02Hz (1 cycle every 50 seconds), giving tri and square waveforms. There is also a difference rectifier onboard which gives signal corresponding to the positive and negative aspects of the difference between the two tri waves.
All thru holes components, no wiring to do.

https://www.nonlinearcircuits.com/modules/p/dual-lfo-1

• 18 mA +12V
• 15 mA -12V
• ? mA 5V

Module is available as a DIY project only.

No info about availability.