This small battery-powered high-voltage generator was found in Radio Electronics magazine from June 1965. The transformer is the power supply type determining the output voltage,
Found in documentation from Analog Devices from the 90s, this amplifier uses a component from the...
This charger was found in an 80's Electronic Design. The circuit uses components from that time....
This double tone generator uses a specific integrated circuit, having been found in a 1977 CMOS...