This peak detector has a memory to prolong the response. The circuit is from American documentation from the 1980s. The supply does not have to be symmetrical.
This DC-DC converter was found in old RCA documentation. The circuit operates at 15 kHz. The...
Found in a 1967 documentation, this infrared amplifier is intended for use in a Nipkow disc camera...
This circuit provides a 1 Hz signal given by the capacitor, which can be changed. The gate is TTL...