Hello everyone,
I've had a theremin kit from thereminkits.com for a long time now, and it has never worked right. I've asked the manufacturer on several occasions what the problem is and each time the solutions provided have come to no avail. I'm hoping someone here may be able to help me out.
http://www.thereminworld.com/pics/schematics/SiliconChip/sc-diagram.gif <- Here's the schematics
To tune it to get it to work, you turn each of the coils until it sounds right. Now apparently T2 affects the pitch range and T3 affects the volume plate, but somehow T3 affects pitch in exactly the same way as T2 and the volume plate controls pitch as well as the pitch aerial. T4 and VR2 appear to do nothing.
Is this indicative of a dry joint or short circuit somewhere, or is the problem elsewhere? I hope someone here can point me in the right direction.
Many thanks!
I've had a theremin kit from thereminkits.com for a long time now, and it has never worked right. I've asked the manufacturer on several occasions what the problem is and each time the solutions provided have come to no avail. I'm hoping someone here may be able to help me out.
http://www.thereminworld.com/pics/schematics/SiliconChip/sc-diagram.gif <- Here's the schematics
To tune it to get it to work, you turn each of the coils until it sounds right. Now apparently T2 affects the pitch range and T3 affects the volume plate, but somehow T3 affects pitch in exactly the same way as T2 and the volume plate controls pitch as well as the pitch aerial. T4 and VR2 appear to do nothing.
Is this indicative of a dry joint or short circuit somewhere, or is the problem elsewhere? I hope someone here can point me in the right direction.
Many thanks!
