Three-in-one utility: buffered 1:3 multiple, precision 2:2 adder/multiple, and 3:1 averaging mixer. DC-coupled throughout, accepts audio rate, 0.1% resistors on the adder for note-CV transposition duties.
The 1:3 buffered multiple is designed for splitting a pitch CV across multiple VCOs without tuning drift. Passive stackcables and unbuffered mults can slump at the third tap; Links preserves the voltage identically at all three outputs.
0.1% resistors make the 2:2 section a precision summer: sequencer CV into IN A plus keyboard CV into IN B gives a transposed sequence at OUT. Unlike many mixers, the unity gains are exact — musical intervals stay musical.
When only IN A is patched, the 2:2 section becomes a buffered 1:2 multiple (two identical copies of IN A). Combined with the 1:3 section, one Links gives 5 buffered copies of a single note CV.
The 3:1 section applies a gain of 1/3 per input. Three full-scale VCOs sum to full scale at the output — no soft-clip, no distortion, no attenuators needed upstream. The trade-off is 9.5dB less gain than a unity-gain mixer.
Every section is DC-coupled. CVs, LFOs, envelopes, and audio all pass without filtering. The averager works equally well as a 3-source CV mixer (three modulations combined into one control voltage) as it does as an audio bus.