Hello all!
In my search for some answers I found this board, and I'm super impressed by all of your knowledge!
I'm a novice when it comes to this, but I'm eager to learn in new fields. My search found several similar threads on this board, but I'm not sure how to apply them to my project. I would be super appreciative for any help or directions you could give me.
What I have is one TC Electronics Polytune guitar tuner pedal that functions as follows:
1, Pedal is bypassed - signal goes to guitar amp
Press the pedal once and release
2, Pedal is active - signal to amp is muted and tuner is active.
Press again and we're back to step 1...
What I want to achieve is to add 2 LED's that are lit one at the time. Green light when pedal is bypassed and a Red light when the pedal is active.
From what I can tell the footswitch is a DPDT which made me think I could change it to a 3PDT and add the LED's and external 9V to the 3rd pole. However, the switch a momentary switch and my LED's would not be latching doing that. So I believe a flip flop/schmitt trigger would be the way to go? The pedal itself is powered with 9V, and I'd rather add another 9V source to power the LEDs than to try and hijack power from the pcb.
So my questions would be if anyone know of a specific circuit that would work for this specific need (flip flop/schitt/or other)? Also, I wonder what kind of switch I would have to use to service the needs of the tuner itself as well a using it to trigger the latching LED's, and how it would be connected to this new circuit?
I saw that Bill Marsden, to name one, had some fantastic illustrations and schmatics, but I'm not sure if they completely apply?
I'm incredibly thankful for all the help I can get.
Thanks!
Niclas, Sweden
In my search for some answers I found this board, and I'm super impressed by all of your knowledge!
I'm a novice when it comes to this, but I'm eager to learn in new fields. My search found several similar threads on this board, but I'm not sure how to apply them to my project. I would be super appreciative for any help or directions you could give me.
What I have is one TC Electronics Polytune guitar tuner pedal that functions as follows:
1, Pedal is bypassed - signal goes to guitar amp
Press the pedal once and release
2, Pedal is active - signal to amp is muted and tuner is active.
Press again and we're back to step 1...
What I want to achieve is to add 2 LED's that are lit one at the time. Green light when pedal is bypassed and a Red light when the pedal is active.
From what I can tell the footswitch is a DPDT which made me think I could change it to a 3PDT and add the LED's and external 9V to the 3rd pole. However, the switch a momentary switch and my LED's would not be latching doing that. So I believe a flip flop/schmitt trigger would be the way to go? The pedal itself is powered with 9V, and I'd rather add another 9V source to power the LEDs than to try and hijack power from the pcb.
So my questions would be if anyone know of a specific circuit that would work for this specific need (flip flop/schitt/or other)? Also, I wonder what kind of switch I would have to use to service the needs of the tuner itself as well a using it to trigger the latching LED's, and how it would be connected to this new circuit?
I saw that Bill Marsden, to name one, had some fantastic illustrations and schmatics, but I'm not sure if they completely apply?
I'm incredibly thankful for all the help I can get.
Thanks!
Niclas, Sweden
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