Midway Space Invaders L-shaped boardset

L-shaped boards are so named as the Sound board plugs into the motherboard to form an L-shape. These boards only support monochrome monitors.
80-900
Motherboard
80-900 CPU Board Front
This board is functionally similar to the Taito Space Invaders Motherboard (AA017742) but has a different layout.
A084-90700-B739
Sound, IO and Shifter Board (25S10)
No image available

If you have this board please Contact Me

This board uses 25S10 for the shifter circuit and is functionally identical to the 74151 version.
A084-90700-D739
Sound, IO and Shifter Board (74151)
A084-90700-D739 Sound Board Front

This board uses 74151 for the shifter circuit and is functionally identical to the 25S10 version.

A084-90700-C739
Sound, IO and Shifter Board (74151)
No image available

If you have this board please Contact Me

This board uses 74151 for the shifter circuit and is functionally identical to the 25S10 version. This version supports upright games only.