So... back to the old drawing board. I built a PAiA Theremax theremin and plugged it in to tune and test, etc.
The LED (attached to the power switch) did not light when the switch was turned on. Nothing, in fact, seemed to happen. I waited and watched to see if any heat, smoke, etc.
After about a minute I went to switch it off. A loud cracking POP interrupted me, though. I switched off and examined. Couldn't see where it came from, but eventually saw that the top of C1 (100 uF electrolytic capacitor) was bulged and cracked open in the top vent.
Any idea why this would have happened? And -- clearly it's getting power (too much?) -- so why did the LED not come on? Everything seems to have correct polarity for the wiring...
The LED (attached to the power switch) did not light when the switch was turned on. Nothing, in fact, seemed to happen. I waited and watched to see if any heat, smoke, etc.
After about a minute I went to switch it off. A loud cracking POP interrupted me, though. I switched off and examined. Couldn't see where it came from, but eventually saw that the top of C1 (100 uF electrolytic capacitor) was bulged and cracked open in the top vent.
Any idea why this would have happened? And -- clearly it's getting power (too much?) -- so why did the LED not come on? Everything seems to have correct polarity for the wiring...