How to Replace Resistors in Antique Radios

Antique radios have a nostalgic appeal, harkening back to a simpler time and old radio programs like "The Shadow" and "War of the Worlds." They make a great conversation piece and a fine addition to your den, particularly with the old common wood finish.

There are some challenges inherent in replacing the old resistors in your antique radio, including securing the necessary parts. However, once you have the parts you need the directions are not difficult.

• The hardest thing in the process is finding replacements for the old resistors. However, you can use modern resisters that are shaped like cylinders, as long as they fit the size of the old resistors and are colored appropriately. Familiarize yourself with the coding that the old resistors used, such as "M" for 1000. You can study schematics for the old radios, many of which can be located in an online search.


• In assessing the new resistors, it is important that the serial numbers match so that they will provide the proper resistance, in relation to their proper ohm numbers.


• Take the old resistors out of the radio by reheating the solder attaching the old resistor in the radio and pulling the resistor out of the radio by hand. After you have taken out the resistors you need to remove, it is important to clean the terminals within the radio. Use your needle nose pliers to place the new resistors in position to replace the old ones. Solder the ends of the resistors to secure them in position.