This circuit was found in Motorola's Linear Interface ICs of 1993. The integrated circuit used is not common and the load current depends on the Triac.
This type of circuit, even with the same configuration, appears several times on this site. The...
This circuit is a wireless temperature transmitter for RF signals in the range of 0.2 to 2 MHz...
We found this circuit in a 1992 Poptronics. What it does is to activate LEDs sequentially,...