This Module is currently available.
Specs are approved by the manufacturer4-Pole Low Pass CEM3320 Based VCF
The Tellun Corporation TLN-442 is a four pole low pass filter built around a Curtis Electromusic Specialties CEM 3320 chip. A built in mixer allows for three audio inputs. The filter frequency can be set using a panel mounted pot, a “one volt per octave” external control voltage, or via two external FM inputs with attenuators (one reversing). Filter resonance can be set using a panel mounted pot or an external control voltage with a reversing attenuator.
A four pole low pass filter built with a CEM 3320 was used in the Sequential Circuits Prophet Five (rev. 3) and Pro One synthesizers.
https://richsstudioproject.wpcomstaging.com/product/tln-442/
These merchants probably sell this module. Huh?
