| Author |
Message |
    
Road_warrior
Advanced Member
Username: Road_warrior
Post Number: 933
Registered: 7-2004
| | Posted on Thursday, November 17, 2005 - 5:35 pm: | 
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My Dm-452 recently started getting muffled
during transmitting. Not sure what ohms the
mic elements are in them. I replaced the mic
element with a 500 ohm mic element and it
sounds nice and clear again. Not sure why mic
element went bad.
HOLLOWPOINT- The Mic i tried on my RCI-2995dx
was a Turner Landcom. All the adjustments in
the world not going to make this mic sound good
on my radio. Something may be wrong in the Mic.
Those New Compression Mics from Coppers sound
like there going to be a very nice mic. I will try one when they come in stock for sure.Looking
forward towards a good desk mic.
After i started running the DM-452, i tried
switching back to my Silver Salute (off and on) and people told me i sounded like i was pinching my nose shut while transmitting. Tried adjusting Mic gain, but, no luck. I'm going to switch parts
around inside the Mic until i find the sound
i like. Experiment time!
shut. |
Hollowpoint445
Advanced Member
Username: Hollowpoint445
Post Number: 909
Registered: 6-2004
| | Posted on Friday, November 18, 2005 - 8:33 am: |
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I think the element in the DM-452 is electret. That means the element or actually cartridge is already amplified which is why they need voltage to function. Replacing it with another element is going to be a hit and miss proposition and depending on the element design it may be necessary to use a capacitor inline with the + side to keep the element from being damaged.
You could just go to the shack and buy a replacement electret element or salvage one from a tape recorder, computer microphone, or the jillions of electronic devices that have electret microphones built into them.
Are you a smoker? Tobacco smoke kills microphones by coating the element. That might explain your luck with microphones. |
Road_warrior
Advanced Member
Username: Road_warrior
Post Number: 940
Registered: 7-2004
| | Posted on Friday, November 18, 2005 - 6:30 pm: |
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I replaced the mic element with a 500 ohm
element that looked the same as the one
that was in there. It is very clear and
works great,so, i will see what happens.
JIM/PA/CEF 375
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Road_warrior
Advanced Member
Username: Road_warrior
Post Number: 996
Registered: 7-2004
| | Posted on Tuesday, November 29, 2005 - 8:03 pm: |
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I replaced the Mic element also in my
Silver Salute Desk Mic./ I used a mic
element out of a Superstar stock mic.
It's now sounding better than the original
Salute mic element. This element matches my voice much much better and smoothed it out.
500 ohm mic element works great in my DM-452 mic.
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Wildrat
Intermediate Member
Username: Wildrat
Post Number: 388
Registered: 12-2003
| | Posted on Tuesday, November 29, 2005 - 9:18 pm: |
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I know those d104 desk mics dont like heat. I left mine in the car in Georgia in the summer, windows up. The adhesive used in the mic element came unglued. I used a mic element from an old pair of aircraft headphones.
Wildrat
CEF674 |
Road_warrior
Advanced Member
Username: Road_warrior
Post Number: 997
Registered: 7-2004
| | Posted on Tuesday, November 29, 2005 - 11:04 pm: |
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I used the Silver Salute Desk mic on
my RCI 2995dx. Then, i bought a DM-452
echo mic and all the locals said, i sounded
better on it. Now, that i changed the mic
element on the Silver Salute the locals
say it sounds better than the Dm-452 now.
I even tested it against my brand new Dm-452
which has the original mic element. Silver
Salute still the favorite.
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