browning brownie

[grandpaclint]

hello, and thank you for letting this old man join the forum.

i just have a quick question,,,i just bought an old browning browny 23
it dead keys 4 watts and swings up,as it should.
but when i got a radio check they said i had a squeal?
i hooked up another cb just to listen, but i heard no squeal,
when i touch any part of the radio that is metal i get a small humm

any help would be appreciated.

thanks

Clint---az.outback

[2600]

I know what this sounds like.

Sounds like somebody replaced the mike cord and ignored which wire had the shield wrapped around it.

The choice of colors in a mike cord is nearly random. The single wire that is shielded is used to carry the mike audio into the radio's mike preamp circuit. This is to prevent the sensitive mike input from picking up stray noise and hum.

But if the old cord used the red wire for the audio, and the new cord uses the white wire for this, you can't use the same color wires for the same jobs as the old cord.

But some folks will copy the color layout regardless, probably as a way to keep track of which wire goes where. The result will be that the wire carrying the mike audio in the new cord will not have that shield on it. One of the other wires will.

Or someone may have rewired the mike plug at some time in the last 35 years, and just got it wrong.

Or the cord on the mike could be defective.

Mikes break more frequently than radios. And cords are like brake shoes. Use them long enough and they wear out.

73

[cbrown]

Also check to see if the shield wire on the microphone plug is making intermittent contact, or is disconnected.

[grandpaclint]

thanks a lot for the info.

the mike is the stock original mike,i have checked the wiring in the mike
now i'll check the plug.

It got too cold in the ol man cave the other day to do any more testing.

Clint

[cbrown]

If you have any trouble, let us know.

[grandpaclint]

well, i checked the mic, and the plug,everything checks out as it should.

it is obviously all stock,nothing butchered, i probably have some bad

caps.

when i get spunky I'll have to start checking them out

thanks guys

Clint

[cbrown]

Try moving the microphone card around when you key the radio. It's possible that you could have a bad cord, too.