This wireless infrared remote sound transmitter is from an article published in the August 1988 issue of Radio Electronics magazine. The circuit can be built using modern, higher-power LEDs.
Using 555 integrated circuits, this alarm circuit was found in a 90s American documentation. The signal...
The time the output is high (1) of a TLCSSB in the astable configuration depends on Ra and C. The...
This high quality circuit with complementary symmetry was found in an Electronics World of 1966....