I had cleaned my 104 for the last time after having it only last me a couple of weeks in between. Got interested in some different mics and found a couple of these, so I stole the cord to wire into this mic. 4 pin ready to go.
-
You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
Astatic D104M6B
- Thread starter tshows
- Start date
I had cleaned my 104 for the last time after having it only last me a couple of weeks in between. Got interested in some different mics and found a couple of these, so I stole the cord to wire into this mic. 4 pin ready to go.
I'm in the process of changing out the shity switch with new one new version of this Mike sucks a big one. will post when finished with it and test it...
Desoldering tool was a plus for easy removal of the PTT switch
Desoldering tool was a plus for easy removal of the PTT switch
Attachments
RatsoW8
Supporting Member, W9WDX ARC Member - WD8T
lol jaja oops ment Mic... thanksWow did I misread the last post. Mike = Mic
here's the finish M I C tested it and no more scratchy sound and PTT is now nice and smooth
ebay item number for this interested is 281758269364
Attachments
WOW-very cool to see the switches I sell on here. Glad that they are helping to restore these great mics back to working order...
Robert
ill be purchasing more soon as i finish my moving, they are super and worked flawlessly. thanks
Found this on youtube don't have anything to reference it to
as " Paul Christensen10 months ago
The fix is simple: Solder a wire between two switch contacts. The contacts are the lead coming from the audio output (3300 uH choke) and the white audio lead. Referring to the schematic diagram, here's what's happening: as the push-to-talk switch is engaged, a metal wiper is sliding between two of three contacts. The switch has four poles, one of them being used to switch audio output. There's absolutely no reason to switch the audio output lead. Just leave it connected and active all the time. In doing so, the audio cannot become "scratchy" since there's no break in the switch path anymore. Making this mod does NOT affect the normal PTT or battery operation. In fact, it makes it better because now you can use VOX on transceivers that are VOX enabled."
No idea if it works does anyone have a picture?
as " Paul Christensen10 months ago
The fix is simple: Solder a wire between two switch contacts. The contacts are the lead coming from the audio output (3300 uH choke) and the white audio lead. Referring to the schematic diagram, here's what's happening: as the push-to-talk switch is engaged, a metal wiper is sliding between two of three contacts. The switch has four poles, one of them being used to switch audio output. There's absolutely no reason to switch the audio output lead. Just leave it connected and active all the time. In doing so, the audio cannot become "scratchy" since there's no break in the switch path anymore. Making this mod does NOT affect the normal PTT or battery operation. In fact, it makes it better because now you can use VOX on transceivers that are VOX enabled."
No idea if it works does anyone have a picture?
Last edited:
it would have cost astatic about nothing to wire the newer mics with crappy little switches differently and more reliably,
putting a useless nowadays switch in an audio circuit is dumber than dumb, failure & frustration is part of the design,
bypassing the switched audio does work to fix many scratchy mics,
it won't give vox with amplified mics unless you also bypass the switched voltage to amp board,
you get vox with bypassed stock mics,
on some mics i removce the wires from switch circuit and join them,
then wire the spare contacts on the switch in parallel with the voltage switch contacts.
putting a useless nowadays switch in an audio circuit is dumber than dumb, failure & frustration is part of the design,
bypassing the switched audio does work to fix many scratchy mics,
it won't give vox with amplified mics unless you also bypass the switched voltage to amp board,
you get vox with bypassed stock mics,
on some mics i removce the wires from switch circuit and join them,
then wire the spare contacts on the switch in parallel with the voltage switch contacts.
It's a 404B...my buddy is currently using it on his 2 meter rig, and it sounds fantastic!
Yes, it will work on getting rid of the scratchy while modulating, If you firmly hold the key down button, but it still scratches while keying and unkeying. I have done about 8 of the D104M6B mods. So, it helps a lot, but doesn't get rid of all of it.