We found this circuit in a 1982 documentation. It uses a CA3140 or equivalent operational amplifier and does not require a symmetrical source. The output is 1 Vpp wide.
This DC-DC converter was found in old RCA documentation. The circuit operates at 15 kHz. The...
This simple circuit uses few common components and can be installed in any car. In case of...
This circuit is from a Radio Electronics magazine from August 1974. It used one of the first...