Dukane 110-3524B Expanded Audio Routing Card for a StarCall Intercom System

Dukane 110-3544C Intercom Amplifier Module for a StarCall Intercom System

Dukane 110-3534 Rev C Audio Switching Card for a StarCall Intercom System

one Dukane STARCall Intercom Telephone Switching Card BTC-P 110-3775B REV 4

Vintage Intercom w Electro-Voice Mic 602F, Dukane 110-3160 Audio Routing Card

Dukane Audio Routing Card 110-3524C

Dukane 110-3538 Backplane Board for StarCall Intercom System