Yusynth VC Oscillator VCO Module (5U) - 2013 - Dotcom Format

For sale is a VCO module that I built on the basis of Yusynth plans between late 2012 and late 2013. It uses matched BC547 transistors for exponential conversion.

This module started as a blank Synthesizers.com panel. Lettering was applied using the “DecalProFX” method, which involves printing a toner image, coating it with colored foil (in this case, white), and then transferring it to the panel. Small defects were corrected with a Sharpie paint pen. All lettering has been sealed over with matte clear-coat. The circuit board is single-sided and through-hole, etched using the toner transfer method, and tinned with MG Liquid Tin. All chips are socketed for easy replacement.

This module has been kept very clean in my dry, conditioned studio for its entire existence, so it still looks and functions like new. Alignment was performed in mid 2025 after no adjustments since 2013, but you may find it desirable to align it to your liking once received.

See my other listings for more Dotcom format modules. Combined shipping is possible.

Thanks for looking, and feel free to ask questions or make an offer!