This circuit is from a Texas Instruments manual from 1968 but can be applied to current controls using modern Triacs. The circuit is for a current of 25 A per triac.
This experimental AM radio circuit was found in a 1979 English magazine. It can be fitted with a...
This is a variation of the two previous circuits but controlling two LEDs. The brightness of the...
This circuit is the receiver for the CB13997E. The transistor can be the BC548. We also found this...