Here you will find some unique upgrades and enhancements for your machines:

Other enhancements available are:
- Gottlieb System 80/A/B – Diode Clamping board (protects switch matrix)
- MPU080 – Diode Clamping board (protects switch matrix)
- LISY1/80- Diode Clamping board (protects switch matrix)
- GamePlan Open-Source Multi-MPU (In kit for or assembled)
Reproduction Valley Spectra IV MPU is in process…….
Send an e-mail to: rdoerr@uwm.edu if interested.