R/C Switch #3, for Radio Control Applications

R/C Switch, simple

Parts List:

R1,R2,R3 = 10KP1 = 20K, multi-turn trimmer pot C1,C3 = 10uF, 16VC2 = 0.1uF (100nF) IC1 = CD4001 CMOSQ1 = see text

This is a simple electronic switch to replace a servo and micro switch to do the on-off switching.
Connect the input to a spare receiver channel, like ’Gear’, or any other.Adjust P1 for the setting you want on anyproportional channel.The ’Out’ pin of the collector of Q1 goes to relay if you switch a battery load on/off.
For Q1, use any suitable type to switch your relay.I used a regular 2N2222A + 5A relay for the job (on/off switchinga 12V/2A battery pack).

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