Well, still no luck findding B battery. I'm not so sure it existsnow; looking at the manual for the power supply it says it provides:
1) Regulated -24vdc for intercom and line talk battery and power for logic circuits and relays
2) 18 vac for buzzers
3) 10 vac for lamps
And that's it.... should I just tie the intercom's AB and BB together onto the KSU AB?
