Diode board assemblies by diode count
Plug-in diode boards come in several sizes: 23829 (5 diodes), 24142 (6), 24252 (8), 23888 (10), 23830 (11), 23941 (13), 23968 (14) and 24030 (15). Each mounts on two spacers 23984.
Systems
Source: Premier Technology Parts Catalog (System 80, 80A and 80B), Gottlieb / Premier