408-6140 MOD-600, Relay Replacement Board ALS-500/600 only

MOD-600 Side
MOD-600 Side
MOD-600 Back

PCB that replaces open relay in ALS600/500 T/R

This is a Sealed Relay Replacement Board for Part#: 408-6140 (ALS-500M/ALS-600)

Fully Assembled, and Tested!  Not for tube amplifiers.  Open face relay for tube amps is unavailable.