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Old 04-06-2016, 06:56 PM
zeno's Avatar
zeno zeno is offline
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Join Date: Mar 2013
Location: New Hampshire
Posts: 4,721
1)Unhook or unplug the battery box from the radio.
If soldered in one lead is fine.
2) measure volts. If 4.5 V the batteries & holder OK.
If not then the problem is the holder or bats.
3) If the voltage drops a lot when you hook up
the radio something is loading things down. Look
at the output IC or transistors first.
The radio may have crapped out then got tossed in a drawer
& the bats leaked......

If you like working on small stuff ( I do !) get some DC
output wall warts. They used to make them with a voltage
switch ( 4.5 - 12 V ), multi connectors & polarity switch.
ADD a pair of wires with alligator clips that are color coded
& you can sub it in to any low current device without
batteries involved. As for bats I only use duracells from a
known source to avoid Chi-Com junk & counterfits.

73 Zeno
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