We found this circuit in an Australian publication from 1991. It is a kit of the time with input for a guitar pickup. The range is a few tens of meters.
The TAA300 integrated circuit is not common today. In fact, the circuit shown is from a Dutch...
This circuit was found in old documentation. PUTs are uncommon components today. The circuit...
This circuit is used in VHF and UHF superheterodyne receivers. The circuit is from the 1964 RCA...