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Electronic Schematics - F

Bistable Multivibrator or Flip Flop Circuits

CMOS Toggle Flip Flop With Relay(CD4013):

Discrete BiStable Flip Flop:

Discrete Set / Reset Flip Flop:

Flip-Flop Flashers, Buzzers, Etc.:

Gated Oscillator Emulates a Flip Flop: 03/16/95 EDN-Design Ideas 

Monostable Flip Flops (One Shot):

Soft On / Off Switch

Telephone Line Based Audio Muting & Light on Circuit

Telephone Line Based Audio Muting & Light On Circuit: The circuit would automatically light a bulb on arrival of a telephone ring and simultaneously mute the music system/TV audio for the duration the telephone handset is off-hook. Lighting of the bulb would not only indicate an incoming call but also help in locating the telephone during darkness.


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