Using the LM383 this circuit was found in a Popular Electronics from the 90s. The source must be 14V and the integrated circuits must have good heat sinks.
This sensitive Japanese mid-wave receiver from the 1960s has an output power of 45 mW and is...
This basic TTL watch and minute clock circuit was found in European documentation from the 1970s....
This circuit uses a pickup coil to take the signal from a telephone line without contacts. The circuit...