Electronic circuits for driving bells or electromagnetic devices

Electrical transmission or interconnection systems – Plural supply circuits or sources – Selective or optional sources

Patent

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Details

307 43, 307 2, 340392, 340 84, H02J 1700, G08B 300

Patent

active

046282130

ABSTRACT:
A multimode electronic circuit for driving bells or other electromagnetic devices. An important feature of this design is that it allows one circuit to function in a variety of modes: either in the vibrating mode or single stroke mode, both being operative with either an AC or DC source.

REFERENCES:
patent: 3493966 (1970-02-01), Human
patent: 3868683 (1975-02-01), Darrow

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