This analog instrument circuit was found in a 1990s William Sheets. The components are common and are only suitable for cars with mechanical switching (platinum).
This receiver receives signals from the PX or Citizen Radio band at 27 MHz. The circuit is from an...
This basic blocking oscillator configuration was obtained from a 1954 transistor book. The...
Found in a 1970 American publication, this circuit uses transistors of the time. These transistors...