Re: 1951 Signal-Seeking radio operation/manual

Posted by HH56 On 2023/11/20 18:35:27

One caution if you are not familiar with the type reversible motors Packard used most often. While there are exceptions, most reversibles only have two wires connected to the motor. The case gets the ground and ONLY ONE of the wires is powered at a time. Power on one wire rotates the motor one direction, power on the other wire reverses it.

Miswiring is not usually an issue if using a Packard switch made for the particular application but if you want to use an aftermarket type switch or have a motor repaired by someone not familiar with Packard wiring it can be. People not familiar with the old motors see two wires and assume that like a modern permanent magnet motor both need power and you reverse polarity to change direction. NOT SO on the old motors and if that is done and left connected while someone tries to figure out why the motor is not turning it can result in a burned out motor.