Powering Condenser Mic with Capacitor
 

I have a Uniden Pro510XL that uses a condenser mic element powered off the
radio. It sounds great but is prone to squealing if there is any power. I
saw somewhere that a guy used a capacitor to power the mic element. This
will probably fix it. Can anyone tell me or point me to a link on how to do
this.

Chris

"Chris" wrote in message
ink.net...
I have a Uniden Pro510XL that uses a condenser mic element powered off the
radio. It sounds great but is prone to squealing if there is any power. I
saw somewhere that a guy used a capacitor to power the mic element. This
will probably fix it. Can anyone tell me or point me to a link on how to
do
this.

Chris


You might look up the old K40 line of mics. They had one that was a
processor/amp, that used a cap to supply power. Of course, to supply power
to a transistor as opposed to an IC, this might not really be a workable
scenario.

"AKC KennelMaster" wrote in message ...
"Chris" wrote in message
ink.net...
I have a Uniden Pro510XL that uses a condenser mic
element powered off the
radio. It sounds great but is prone to squealing if there is any power. I
saw somewhere that a guy used a capacitor to power the
mic element. This
will probably fix it. Can anyone tell me or point me to a link on how to
do
this.

Chris


You might look up the old K40 line of mics. They had one that was a
processor/amp, that used a cap to supply power. Of course, to
supply power
to a transistor as opposed to an IC, this might not really be a workable
scenario.

When you say prone to squealing if there is any power I dont know what
you mean. If you mean you are using an amp then you should know those
radios are not designed for that. RF will get into the unsheilded
areas esp. the eletret mike. The capacitor is already there in the
citcuit you dont need another one, just dont run power and youll have
no problem.

You guessed it right. Just a small amp. I know the Pro510XL has problems
because power is supplied to the mic by the radio. If it were powered by a
battery, it would be fine. There is, however, an alternate method in which
the power is supplied to the mic element by a capacitor. It is charged
during receive and then switched over to power the electret element during
transmit. I just don't remember the details. BTW, it's nice to see some
people willing to discuss radios and help rather than trashing the NG.
Thanks and 73's.

Chris
"I Am Not George" wrote in message
m...
"AKC KennelMaster" wrote in message
...
"Chris" wrote in message
ink.net...
I have a Uniden Pro510XL that uses a condenser mic
element powered off the
radio. It sounds great but is prone to squealing if there is any
power. I
saw somewhere that a guy used a capacitor to power the
mic element. This
will probably fix it. Can anyone tell me or point me to a link on how
to
do
this.

Chris


You might look up the old K40 line of mics. They had one that was a
processor/amp, that used a cap to supply power. Of course, to
supply power
to a transistor as opposed to an IC, this might not really be a workable
scenario.

When you say prone to squealing if there is any power I dont know what
you mean. If you mean you are using an amp then you should know those
radios are not designed for that. RF will get into the unsheilded
areas esp. the eletret mike. The capacitor is already there in the
citcuit you dont need another one, just dont run power and youll have
no problem.

"Chris" wrote:
You guessed it right. Just a small amp. I know the Pro510XL has
problems
because power is supplied to the mic by the radio. If it were powered
by
a
battery, it would be fine. There is, however, an alternate method in
which
the power is supplied to the mic element by a capacitor. It is
charged
during receive and then switched over to power the electret element
during
transmit. I just don't remember the details. BTW, it's nice to see
some
people willing to discuss radios and help rather than trashing the
NG.
Thanks and 73's.


You might be thinking of an rf bypass capcitor. in any case it doesnt
matter how the mike element is powered it matters how the RF is
getting in to it. anything could carry rf, the mike cable, the ground
line, the ptt line. as I said the cb is not designed for more than 4w
so they get away with cheap design in that area. If you want to
persue troubleshooting it try Frank G or one of the hams in this group

a uniden pc68xl is a much better choice in a radio.

"power is supplied to the mic by the radio"
WTF? huh?

--
On the internet, no one can hear you modulate.



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Steveo wrote:
(MrTimNebo) wrote:

a uniden pc68xl is a much better choice in a radio.


Bring back TimNebo.com! :)

seconded...

jim wrote:
Steveo wrote:
(MrTimNebo) wrote:

a uniden pc68xl is a much better choice in a radio.


Bring back TimNebo.com! :)

seconded...

I wish I would of saved the pics.

Steveo wrote:
jim wrote:

Steveo wrote:

(MrTimNebo) wrote:


a uniden pc68xl is a much better choice in a radio.


Bring back TimNebo.com! :)

seconded...


I wish I would of saved the pics.

thinking about it steve so do i. hehehe. any more races you going to?

jim wrote:
Steveo wrote:
jim wrote:

Steveo wrote:

(MrTimNebo) wrote:


a uniden pc68xl is a much better choice in a radio.


Bring back TimNebo.com! :)

seconded...


I wish I would of saved the pics.

thinking about it steve so do i. hehehe. any more races you going to?

Mansfield is running the trucks next month, but I'm not really a
truck fan. I may go anyway?

I'd like to do Bristol again this year, under the lights. That
all hinges on ticket prices tho. I'll have my Mopars out to
Norwalk a few times too. We're renting the strip for a day
next month..12 guys. Makes for more passes, and tuning time.

Wanna go to Bristol under the lights with me?

Steveo wrote:
jim wrote:
Steveo wrote:
(MrTimNebo) wrote:

a uniden pc68xl is a much better choice in a radio.


Bring back TimNebo.com! :)

seconded...

I wish I would of saved the pics.

I am sure I mentioned this place to you befo www.archive.org They keep
snapshots of every website that has ever been taken down. IIRC, they call
it automated web crawling.


--
_____________________________________
Hotel sheets, rental cars, late flights, fast food.
What's not to love about consulting?!?!?

Steveo wrote:
jim wrote:

Steveo wrote:

jim wrote:


Steveo wrote:


(MrTimNebo) wrote:



a uniden pc68xl is a much better choice in a radio.


Bring back TimNebo.com! :)

seconded...


I wish I would of saved the pics.

thinking about it steve so do i. hehehe. any more races you going to?


Mansfield is running the trucks next month, but I'm not really a
truck fan. I may go anyway?

I'd like to do Bristol again this year, under the lights. That
all hinges on ticket prices tho. I'll have my Mopars out to
Norwalk a few times too. We're renting the strip for a day
next month..12 guys. Makes for more passes, and tuning time.

Wanna go to Bristol under the lights with me?

hmmmmmm i may have to take you up on that. depends on when the second
story on the house is done.

"Road Warrior" wrote:
Steveo wrote:
jim wrote:
Steveo wrote:
(MrTimNebo) wrote:

a uniden pc68xl is a much better choice in a radio.


Bring back TimNebo.com! :)

seconded...

I wish I would of saved the pics.

I am sure I mentioned this place to you befo www.archive.org They
keep snapshots of every website that has ever been taken down. IIRC,
they call it automated web crawling.

Do us a favor and see if timnebo.com is on there, please.

jim wrote:
Steveo wrote:
jim wrote:

Steveo wrote:

jim wrote:


Steveo wrote:


(MrTimNebo) wrote:



a uniden pc68xl is a much better choice in a radio.


Bring back TimNebo.com! :)

seconded...


I wish I would of saved the pics.

thinking about it steve so do i. hehehe. any more races you going to?


Mansfield is running the trucks next month, but I'm not really a
truck fan. I may go anyway?

I'd like to do Bristol again this year, under the lights. That
all hinges on ticket prices tho. I'll have my Mopars out to
Norwalk a few times too. We're renting the strip for a day
next month..12 guys. Makes for more passes, and tuning time.

Wanna go to Bristol under the lights with me?

hmmmmmm i may have to take you up on that. depends on when the second
story on the house is done.

Hmmm. I'm pricing tickets now. Let me know soon.

Steveo wrote:
jim wrote:

Steveo wrote:

jim wrote:


Steveo wrote:


jim wrote:



Steveo wrote:



(MrTimNebo) wrote:




a uniden pc68xl is a much better choice in a radio.


Bring back TimNebo.com! :)

seconded...


I wish I would of saved the pics.

thinking about it steve so do i. hehehe. any more races you going to?


Mansfield is running the trucks next month, but I'm not really a
truck fan. I may go anyway?

I'd like to do Bristol again this year, under the lights. That
all hinges on ticket prices tho. I'll have my Mopars out to
Norwalk a few times too. We're renting the strip for a day
next month..12 guys. Makes for more passes, and tuning time.

Wanna go to Bristol under the lights with me?

hmmmmmm i may have to take you up on that. depends on when the second
story on the house is done.


Hmmm. I'm pricing tickets now. Let me know soon.

whats the date?

jim wrote:
Steveo wrote:
jim wrote:

Steveo wrote:

jim wrote:


Steveo wrote:


jim wrote:



Steveo wrote:



(MrTimNebo) wrote:




a uniden pc68xl is a much better choice in a radio.


Bring back TimNebo.com! :)

seconded...


I wish I would of saved the pics.

thinking about it steve so do i. hehehe. any more races you going to?


Mansfield is running the trucks next month, but I'm not really a
truck fan. I may go anyway?

I'd like to do Bristol again this year, under the lights. That
all hinges on ticket prices tho. I'll have my Mopars out to
Norwalk a few times too. We're renting the strip for a day
next month..12 guys. Makes for more passes, and tuning time.

Wanna go to Bristol under the lights with me?

hmmmmmm i may have to take you up on that. depends on when the second
story on the house is done.


Hmmm. I'm pricing tickets now. Let me know soon.

whats the date?

SHARPIE 500 NEXTEL CUP SERIES RACE (August 28, 2004) $94 ea. (SOLD OUT)

We get there fri and come home monday.

"Steveo" wrote in message
...
"Road Warrior" wrote:
Steveo wrote:
jim wrote:
Steveo wrote:
(MrTimNebo) wrote:

a uniden pc68xl is a much better choice in a radio.


Bring back TimNebo.com! :)

seconded...

I wish I would of saved the pics.

I am sure I mentioned this place to you befo www.archive.org They
keep snapshots of every website that has ever been taken down. IIRC,
they call it automated web crawling.

Do us a favor and see if timnebo.com is on there, please.

Yep, Tim is there.

"AKC KennelMaster" wrote:
"Steveo" wrote in message
...
"Road Warrior" wrote:
Steveo wrote:
jim wrote:
Steveo wrote:
(MrTimNebo) wrote:

a uniden pc68xl is a much better choice in a radio.


Bring back TimNebo.com! :)

seconded...

I wish I would of saved the pics.

I am sure I mentioned this place to you befo www.archive.org
They keep snapshots of every website that has ever been taken down.
IIRC, they call it automated web crawling.

Do us a favor and see if timnebo.com is on there, please.

Yep, Tim is there.

Url? can you link?

"Steveo" wrote in message
...
"AKC KennelMaster" wrote:
"Steveo" wrote in message
...
"Road Warrior" wrote:
Steveo wrote:
jim wrote:
Steveo wrote:
(MrTimNebo) wrote:

a uniden pc68xl is a much better choice in a radio.


Bring back TimNebo.com! :)

seconded...

I wish I would of saved the pics.

I am sure I mentioned this place to you befo www.archive.org
They keep snapshots of every website that has ever been taken down.
IIRC, they call it automated web crawling.

Do us a favor and see if timnebo.com is on there, please.

Yep, Tim is there.

Url? can you link?

Try this one:

http://web.archive.org/web/*/http://www.timnebo.com

"AKC KennelMaster" wrote:
"Steveo" wrote in message
...
"AKC KennelMaster" wrote:
"Steveo" wrote in message
...
"Road Warrior" wrote:
Steveo wrote:
jim wrote:
Steveo wrote:
(MrTimNebo) wrote:

a uniden pc68xl is a much better choice in a radio.


Bring back TimNebo.com! :)

seconded...

I wish I would of saved the pics.

I am sure I mentioned this place to you befo www.archive.org
They keep snapshots of every website that has ever been taken
down. IIRC, they call it automated web crawling.

Do us a favor and see if timnebo.com is on there, please.

Yep, Tim is there.

Url? can you link?

Try this one:

http://web.archive.org/web/*/http://www.timnebo.com

No good here..i want to see those pics of tim holding
up those massive buds and butts!

I wish I would of saved the pics.

which ones u like?

sorry dude but ive left the weed alone and i dont smoke anymore. it was taking
too much time away from my hoes.......

http://members.aol.com/mrtimnebo/MeandSavannah.jpg

(MrTimNebo) wrote:
sorry dude but ive left the weed alone and i dont smoke anymore. it was
taking too much time away from my hoes.......

http://members.aol.com/mrtimnebo/MeandSavannah.jpg

A man's gotta know his limitations.