Need to create a ground

Thread Starter

Ricks.Radio.Conversions

Joined Apr 12, 2015
3
Hi! I am taking an AM 8-track car radio and converting it to AM/FM. I need to use the track selector switch, it is a momentary switch, and turn it into a latching switch or use a relay to latch and unlatch a ground output.

Any help would be great! Thank you.
 

MrChips

Joined Oct 2, 2009
24,618
You can do it with a logic circuit called a toggle flip-flop.
Firstly, you need to debounce the momentary switch with a filter circuit and a Schmitt trigger.
Then you apply the clean signal to the clock input of a T-type flip-flop (created from a J-K flop-flop). From the output of the flip-flop you can drive a transistor or a relay.
 

Thread Starter

Ricks.Radio.Conversions

Joined Apr 12, 2015
3
You can do it with a logic circuit called a toggle flip-flop.
Firstly, you need to debounce the momentary switch with a filter circuit and a Schmitt trigger.
Then you apply the clean signal to the clock input of a T-type flip-flop (created from a J-K flop-flop). From the output of the flip-flop you can drive a transistor or a relay.
Any chance you have a schematic for this?
 
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