Found in Radio Electronics this circuit uses a fotodiac to drive a triac. The circuit can use equivalent triacs.
This 1.2 to 32 V x 3 A regulator was found in an 80's EDN. The power components must be equipped...
This mixer configuration with the 741 operational amplifier can be found on several other circuits in...
This two-channel transmitter for the 27 MHz band was found in a recent English publication. The...