11-16-2021, 02:27 PM
Hello, I have recently acquired a GM model 120A "The Hepplewhite". Did some cleaning and replacing bypass caps in the metal cans and checking the power resistor/voltage divider found it has an open in the 1st, 3rd and 4th resistors, see the attached photos. Does any one know the values of these resistors?
In the drawing of the voltage divider the 2nd is 60 ohm and the 5th is 450 ohm. One might guess by looking at the spacing of the tabs that the narrow spaced tabs would be the lower values and as the spacing gets wider the resistance would be higher, just a thought. If anyone has some suggestions for the open resistor values it would be greatly appreciated, I only have a couple 10W resistors to work with. I would like to purchase a variety of resistors to keep and at least come close to the values needed to fix this radio.
Thanks, Steve
In the drawing of the voltage divider the 2nd is 60 ohm and the 5th is 450 ohm. One might guess by looking at the spacing of the tabs that the narrow spaced tabs would be the lower values and as the spacing gets wider the resistance would be higher, just a thought. If anyone has some suggestions for the open resistor values it would be greatly appreciated, I only have a couple 10W resistors to work with. I would like to purchase a variety of resistors to keep and at least come close to the values needed to fix this radio.
Thanks, Steve
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