This circuit was found in a documentation from 1948. There are 5 valves with push-pull output. The source uses a transformer, and the indicated application is with turntables.
This circuit was found in a 1966 EEE. It is intended for automatic switching of the measurement range of...
This circuit was obtained from a Popular Electronics of the 90s. The SCR is of any type and the...
This is the basic receiver for the CIR12025 that consists of the transmitter. The circuit is...