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Old 41A control, one zone, with shunt lock


I knew this great starter panel as a 41A control used / installed in the 1970s, Smart metal box, with hinged lid to conceal unit, 12v external power supply, one cct, plus shunt cct. Indicators, Green Clear, Red Fault (key locked by a solenoid) Yellow Call engineer to reset if auto Dialer fitted. Bell test removed power from SAB to sound external bell. Yale key switch.


© Ultrasonic
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OLD alarm Equipment details

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Photo Information

  • Focal Length 18 mm
  • Exposure Time 10/600
  • f Aperture f/5.6
  • ISO Speed 500

Recommended Comments

2 hours ago, pineapplecurlingswan said:

It is almost a piece of artwork. I'd love this in my collection ?

What else you got?

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