This is the printed circuit board to build a 1982 Rhodes Chroma Dual Voice Board.

***** NO PARTS ARE INSTALLED *****

This board is an improved replica of the original board, with these differences:

Can allow either a Curtis CEM3350 or an Alfa Rpar AS3350 via switch settings

CA3086 (non-paired array) replaced with THAT300 paired array

4x TL082 S&H replaced with 2x TL074
3/4 turn trimmers replaced with multi-turn

two LEDs are provided to indicate the sounding VCO for adjustment purpose

All component provisions are placed exactly as per original layout. The board is made to replace old failing or damaged DVBs.

A BOM with parts is available, except for the CEM3350 VCF and CEM3360 VCA chip.

The board has both part references and values to assist assembly. References are also provided to connector pins and S&H output signals for easier inspection.

New in this release (03A): the board is fully configurable via DIP-switch to meet CEM3350/CEM3360/AS3350/AS3360. No board mods are needed.