Disyllable control citcuit diagram

Published:2011/8/11 6:06:00 Author:nelly | Keyword: disyllable, control | From:SeekIC

This cirucit executes simple on/off control function by amplifier inputing signal. when the input tone is 1800Hz, the relay is closed by two 567 decoders with self-locking function; when the input tone is 1950Hz, the relay releases. The diode is 1N4001. The relay can adopt 12V or 14V. Q1 is 2N3906, MPS6521 or 2N2222.



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