Filter / envelope / modulation unit made in Bavaria by Freeform Analogue Technologies. Originally produced for the Turnkey shop in London by MAM as the MAM RS 3 Resonator, this was also sold as the THC-00 Resinator
The THC-01 is a Vactrol-controlled filter unit with three bandpass filters, a modulation section and an envelope follower. It’s said to have been designed by the legendary Jurgen Haible based on the resonator circuit found in the Korg PS3100 & 3300
In excellent condition with the correct – and hard-to-find – 12V AC power supply
FAT THC-01 Resinator Filter (aka MAM Resonator RS-3) #2