Question about GE Superadio III AM/FM

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Milwaukee Job Site Radio AM-FM #49-24-0200

Customer brought in this radio to repair. He had it in a box with all parts. Put it back together and tried it. FM reception was far from complete. Lots of buzzing. Audio level not so good. On the main board are two sets of wound coils. one is ninety degree apart from another one. No ferrite core. Is there an easy way to tune these coils? I find that inserting a piece of paper in between a coil I can change the frequency of the tuning range, but still cannot get into the proper range 88-108Mhz. Have no idea what the inductance is. coil is about 1/2 inch long diameter is less than a quarter inch. wire looks like about 30 ga.

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5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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sharcnet
  • 2130 Answers

SOURCE: Milwaukee Job site radio

Questions:
1. Does the AC cord look ok? Not damaged?
2. Have you tried another AC outlet?
3. Does the AC cord unplug from the radio?

When you operate the radio from the AC power cord, the radio uses an internal power supply consisting of a step-down transformer, rectifier, and filter that converts the AC to DC to operate the radio.

When you run the radio off of batteries, it powers the radio directly. In some radios, when you plug the AC cord into the radio, it activates a switch that disconnects the battery voltage to the radio so that the batteries wont be damaged from the voltage created by the internal supply.

The radio can be powered by either the batteries or the internal supply. You don't want either supply affecting the other, so that is why a switch is sometimes used.

Since the radio works fine off of batteries, that would indicate that there is a problem with the internal power supply. This could be a blown fuse, bad transformer or bad rectifier diode.

Good Luck,
- Jim

Posted on Jan 24, 2008

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  • 4 Answers

SOURCE: radio does not work when it is plugged in,but does work battery

Mine has a bad transformer, but I am having a hard time finding a replacement. This is due to the fluctuating voltage of the job site generator.

Posted on Oct 28, 2009

  • 4 Answers

SOURCE: Milwakee job site radio not working

There is no fuse, have a look at the transformer.

Posted on Oct 28, 2009

  • 4 Answers

SOURCE: milwaukee job site radio

The transformer needs to be replaced. 120VAC to 15VAC.

Posted on Jan 15, 2010

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Mine has a bad transformer, but I am having a hard time finding a replacement. This is due to the fluctuating voltage of the job site generator.

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1 Answer

Milwaukee Job site radio


Questions:
1. Does the AC cord look ok? Not damaged?
2. Have you tried another AC outlet?
3. Does the AC cord unplug from the radio?

When you operate the radio from the AC power cord, the radio uses an internal power supply consisting of a step-down transformer, rectifier, and filter that converts the AC to DC to operate the radio.

When you run the radio off of batteries, it powers the radio directly. In some radios, when you plug the AC cord into the radio, it activates a switch that disconnects the battery voltage to the radio so that the batteries wont be damaged from the voltage created by the internal supply.

The radio can be powered by either the batteries or the internal supply. You don't want either supply affecting the other, so that is why a switch is sometimes used.

Since the radio works fine off of batteries, that would indicate that there is a problem with the internal power supply. This could be a blown fuse, bad transformer or bad rectifier diode.

Good Luck,
- Jim

Jan 24, 2008 | GE Superadio III AM/FM

4 Answers

Milwaukee job site radio


The transformer needs to be replaced. 120VAC to 15VAC. Take a look on amazon for it, here: Amazon com 15VAC transformers. Wish you best of luck.
Brust

Dec 02, 2007 | GE Superadio III AM/FM

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