We found this circuit in the October 1996 Electronics Now magazine. The circuit uses LDRs as sensors and drives relays. The relays must have voltages according to the power supply.
This circuit was obtained from an Electronics World of 1968. The transistor may be general purpose and...
This effects pedal was obtained in an English publication from 1980, but it can be easily...
This circuit produces horizontal lines or bars in a analog TV tuned between channels 2 and 5. L1...