parts

Capacitors, Variable Schematic symbols. Variable capacitors are used to tune your radio, and sometimes to fine-tune RF circuits and the accuracy of the frequency dial indicators. They consist of a set of non-movable, or static […]

Transistors Transistors come in many shapes, sizes, and colors. Radios can have as few as one, or as many as fourteen or more. Surprisingly, the transistor count is not always a reliable indicator of performance. […]

Resistors, Fixed Typical fixed resistors. Fixed resistors frustrate the flow of electrons, and are used to control voltages and current flow in virtually every radio circuit. The photo  shows typical examples found in old transistor […]

Electronic Components In order to follow signals through a radio and find the bottlenecks, you’ll need to know how to read a schematic, and identify components. Typical vintage radio components. Even if you choose not […]