This timer was found in Japanese documentation from the 1960s. The transistor can be replaced by an equivalent and the relay must be of the sensitive type with voltage according to the power supply.
This circuit was found in the May 1983 issue of Radio Electronics magazine. The SSM7046 integrated...
This circuit for high power xenon lamps was found in the November 1974 issue of Radio Electronics...
PIC18F “K40” Features Intelligent ADC with Filtering and Signal Analysis Capabilities Ideal for...