Telecor II ABU3 Revision 3 Intercom XL Compatible System Audio Buffer Board Card

Telecor ABU-3 XL Compatible Audio Card, Rev 5.1

RTS Systems TW Intercom System User Station Model BP320 - heavily used shape

Telecor ABU-3 Rev 6 Plug In Module File T2A06 XL Compatible

Telecor STB-12 Ceiling Tile Speaker/Transformer/Baffle 24" 25/70V , used good

Telecor MCC-3 Vintage Administrators Console PA System Intercom Phone

Telex RTS TW Intercom System User Station SPK-300 Portable Desktop Speaker

Telecor II Intercom IBU-1B Input Buffer Module PCB Circuit Board Control