Encore Electronics has released a new analog Frequency Shifter for modular synthesizer systems and rack processing.
The Frequency Shifter can be used to warp any input signal. It will produce effects ranging from the subtle to the extreme. For example, by employing the simultaneous up and down shift outputs, the on-board feedback controls, and a slight [...]

One of the nicest things about the MOTM format is that it has become a de facto open standard for modern modular systems. Synthesis Technology’s high standards for their designs, and the way they’ve refined classic designs, has made the format the cadillac of analog synthesis.
Compatible module designs are being made by Oakley Sound, Wise [...]

Encore Electronics provides MIDI controllers, MIDI/CV converters, MIDI retrofits and analog modular synthesizer modules to the electronic music community.
For MOTM-compatible modular systems, they make a Frequency Shifter, and sequencer/8-step envelope generator/LFO called the Universal Event Generator.