This circuit, which can serve as a reference for restorations, was found in the October 1989 issue of Radio Electronics magazine. The circuit uses a 5-digit display and a dedicated integrated circuit.
This circuit using programmable unijunction transistors was found in General Electric...
This circuit was found in a 1980 publication. It can be assembled with any equivalent MOSFET and...
This circuit consists of a booster for signals from the FM, VHF and UHF bands, and can be used...