one-eyed Jack
Manufacturer
Icom HM 133. PTT getting bad. Any clues before I take it apart? Jack.
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Scare up a suction-cup tabletop vise for the kitchen table and pad the jaws well.Icom HM 133. PTT getting bad. Any clues before I take it apart? Jack.
Thanks a lot. I have two of them and the spare works if I push the PTT button real hard. Just want to work on the real bad one first for the learning curve. Jack.There's always the hammer option.
Thanks, Alan. The spare one works fine if I hold the button in hard, so I'm pretty sure that the issue is with the mic. And just when I finally got my antenna rotor control/indicator up into the kitchen. Jack.Scare up a suction-cup tabletop vise for the kitchen table and pad the jaws well.
Secure the mic so that PTT doesn't move the mic or cord.
Then do some tests to make sure that
it's truly the PTT that causes the static,
and not jiggling the mic element
or any part of the mic cord,
or the plug at the radio end.
Just don't crack the mic body like an eggshell.
And yes, that mic has an integral keypad, doesn't it.
Maybe you can grip the mic from the rear hanger somehow.
I'm sure it sucks to be playing silly games like that,
but I fantasize that more operators have been scrod in general
by intermittents in the cord than a dying microswitch.
Back in the day I thought my Yaesu H/T's speaker mic had developed
an intermittent at the plug. I actually bought a pair of four-conductor
Tip-Ring-Ring-Sleeve plugs at Hamvention (before smartphones made them trendy),
only to discover that those H/Ts had craptastic jacks, and you have to
keep the mic plug pushed in to eliminate an intermittent. So now I operate
with a rubber band wrapped around the HT to hold the plug in.
Q: Do you think it uses a sealed microswitch,Thanks, Alan. The spare one works fine if I hold the button in hard, so I'm pretty sure that the issue is with the mic. And just when I finally got my antenna rotor control/indicator up into the kitchen. Jack.
I was telling my elmer about your 3-story tall stealth beam rotator.Well, after a lifetime of building, woodworking, metal working, machining, wiring, soldering, home brewing, I need a break.
Well, that's just what I mean. Anyone in their right mind would just buy a rotor and mount it on the roof. I, of course, have to spend days building a system using a reversible gear motor, belts, pulleys, st st tubing, selsyns, cabinets, duplex bearings and flanges to go from the basement and up thru the roof. But it was fun. PS. The coax goes from the beam down thru the length of the tubing. Jack.I was telling my elmer about your 3-story tall stealth beam rotator.
If I was previously told that,PS. The coax goes from the beam down thru the length of the tubing.
Contact cleaner.Icom HM 133. PTT getting bad. Any clues before I take it apart? Jack.
Yes, the final length of tubing is EMT so that I could bend it over 90 degrees with my hand bender to have a drip loop in the coax. Jack.If I was previously told that,
I neglected to realize that.
Good idea. Thanks, Jack.Squirt some electrical contact cleaner in any spaces near the lever, and then exorcize it for a minute. This works more often than not.
Resist the impulse -Update. $21 mic came and works fine. Knock on wood.