We are now making our own magnet driver boards.
The system is modular using two types of boards and can be programmed to drive any note on any channel. The boards are available in 32 note modules and plug together to get 32, 64, 96 or 128 outputs from a single controller module. The controller modules have MIDI in and MIDI thru and can be chained easily.
Information is available by clicking the button to the left marked Modular Magnet Driver
John Smith Topsy III Organ Parts:
I usually have the simple Register Board in stock. $45.00
If included with Modular Magnet Driver System. Small postage and handling charge if ordered separately.