I had constructed circuit 16 of an old Tandy 150-in-1 kits, which was a light controlled electronic harp. With my very limited knowledge of electronics I tried adding a second oscillator-looking thing to see what happened. I kind-of did that, then discovered one of the caps from the original circuit was broken.
Anyway, I was pleased with the result. It responded by changing frequency with light intensity still, but seemed limited in the frequencies it would produce (like a piano rather than a violin, if I'm wording this badly). I tried putting it into LTspice but I don't get that program, and my circuit has a transformer in it, which I can't find in LTspice anyway.
I kind of built the circuit and took a picture, so I could show you all, to see if you had any insight into the cool circuit I stumbled onto. This may not have been exactly what I had; the components are all correct but the connections may be a little off.
What have I created?!
Anyway, I was pleased with the result. It responded by changing frequency with light intensity still, but seemed limited in the frequencies it would produce (like a piano rather than a violin, if I'm wording this badly). I tried putting it into LTspice but I don't get that program, and my circuit has a transformer in it, which I can't find in LTspice anyway.
I kind of built the circuit and took a picture, so I could show you all, to see if you had any insight into the cool circuit I stumbled onto. This may not have been exactly what I had; the components are all correct but the connections may be a little off.
What have I created?!
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