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uk.rec.audio (General Audio and Hi-Fi) (uk.rec.audio) Discussion and exchange of hi-fi audio equipment.

Wiring a mic



 
 
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  #41 (permalink)  
Old July 18th 08, 01:07 PM posted to uk.rec.audio
John Williamson
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Posts: 71
Default Wiring a mic

Phil Allison wrote:
"John Williamson"
HOT to SCREEN ?

Any special reason why ?

Just look at the source of the suggestion.



** Care to explain the actual distinction between " hot " and "cold" wrt
mics - John ??

We will all wait with baited breath for you erudite reply.

Like the cat who ate cheese did.


Meeeeooooow....

The hot pin is the one I've just finished soldering the wire to.

Otherwise, it's the connection that becomes positive relative to the
other output connection when the momentary pressure on the front of the
diaphgram is rising or higher than average ambient pressure.

The cold pin is the other one in both cases.

Wiring "cold" to earth preserves absolute phase going from balanced
microphone to unbalanced input, while wiring "hot" to earth will reverse
absolute phase.

Is that clear enough?

But, then again, someone with your wide experience would already know
that.....

--
Tciao for Now!

John.
  #42 (permalink)  
Old July 18th 08, 01:08 PM posted to uk.rec.audio
Eeyore
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Posts: 1,415
Default Wiring a mic



Phil Allison wrote:

"Eeyore = Graham Stevenson = Congenital ****wit ****head "

Whilst this will work perfectly under most conditions (especially at
home), it certainly isn't 'pro'.


** Peeeeuuuuukkkkeeeeeeee......


God Almighty ! Even when I AGREE with you ...

Phew.

Graham

  #43 (permalink)  
Old July 18th 08, 01:10 PM posted to uk.rec.audio
Eeyore
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Posts: 1,415
Default Wiring a mic



Phil Allison wrote:

Like the cat who ate cheese did.


An ex's black cat quite liked quiche. Even broccolli !


Graham

  #44 (permalink)  
Old July 18th 08, 01:13 PM posted to uk.rec.audio
Eeyore
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Posts: 1,415
Default Wiring a mic



"Dave Plowman (News)" wrote:

You've not tried using mains flex with a balanced mic either?


I confess that particular one has eluded me but the venue I help out did
have around 20 multicore lines with the screen wired to pin 3 !

Graham

  #45 (permalink)  
Old July 18th 08, 01:20 PM posted to uk.rec.audio
Phil Allison
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Posts: 927
Default Wiring a mic


"John Williamson"
Phil Allison wrote:

HOT to SCREEN ?

Any special reason why ?

Just look at the source of the suggestion.



** Care to explain the actual distinction between " hot " and "cold"
wrt mics - John ??

We will all wait with baited breath for you erudite reply.

Like the cat who ate cheese did.


Meeeeooooow....

The hot pin is the one I've just finished soldering the wire to.

Otherwise, it's the connection that becomes positive relative to the other
output connection when the momentary pressure on the front of the
diaphgram is rising or higher than average ambient pressure.

The cold pin is the other one in both cases.

Wiring "cold" to earth preserves absolute phase going from balanced
microphone to unbalanced input, while wiring "hot" to earth will reverse
absolute phase.

Is that clear enough?



** Fine.

Now explain how absolute phase matters when there is only one mic involved ,
or at all - in SR or recording.

Relate it to the post you just shat on - if you like.

We will all wait with baited breath for you erudite reply.

Like the cat who ate cheese did.

Meeeeooooow....



...... Phil




  #46 (permalink)  
Old July 18th 08, 01:26 PM posted to uk.rec.audio
Arny Krueger
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Posts: 3,850
Default Wiring a mic

"Eeyore" wrote in
message
Don Pearce wrote:

Eeyore wrote:
Stephen McLuckie wrote:

Thanks, Don - that's brilliant. Unfortunately, I don't
live anywhere near a shop that sells screened twin
cable.



Ebay sells ready made cables that are made in China and
they're probably cheaper than you could make one
yourself.


If you already have the connectors, the wire and a
soldering iron, I seriously doubt that.


Depends on how you cost your time I guess ! Wouldn't take
much for sure.


I can't believe all the smoke and fire just because the guy doesn't want to
get a piece of 2 conductor shielded wire.

In a pinch, I've made my own from a piece of 1 conductor shielded wire, by
pulling the center conductor and replacing it with twisted bell wire.


  #47 (permalink)  
Old July 18th 08, 04:16 PM posted to uk.rec.audio
Stephen McLuckie
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Posts: 27
Default Wiring a mic

Eeyore wrote:

Don Pearce wrote:

Eeyore wrote:
Stephen McLuckie wrote:

Thanks, Don - that's brilliant. Unfortunately, I don't live anywhere near a shop that sells screened twin cable.
Ebay sells ready made cables that are made in China and they're probably cheaper than you could make one yourself.

If you already have the connectors, the wire and a soldering iron, I
seriously doubt that.


Depends on how you cost your time I guess ! Wouldn't take much for sure.


I need to make a few cables this weekend and I'll make up one for the mic while I'm at it. If I did this kind of thing for a living it wouldn't be worth spending the time, but I do something completely different and I view soldering up the occasional lead in my garage as quite therapeutic.

Stephen
  #48 (permalink)  
Old July 18th 08, 05:11 PM posted to uk.rec.audio
Dave Plowman (News)
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Posts: 5,872
Default Wiring a mic

In article ,
Arny Krueger wrote:
"Eeyore" wrote in
message
Don Pearce wrote:

Eeyore wrote:
Stephen McLuckie wrote:

Thanks, Don - that's brilliant. Unfortunately, I don't
live anywhere near a shop that sells screened twin
cable.


Ebay sells ready made cables that are made in China and
they're probably cheaper than you could make one
yourself.

If you already have the connectors, the wire and a
soldering iron, I seriously doubt that.


Depends on how you cost your time I guess ! Wouldn't take
much for sure.


I can't believe all the smoke and fire just because the guy doesn't want
to get a piece of 2 conductor shielded wire.


In a pinch, I've made my own from a piece of 1 conductor shielded wire,
by pulling the center conductor and replacing it with twisted bell
wire.


The twisted bell wire will work ok without a screen for dynamic mics -
assuming reasonably short runs in a normal area without high levels of
interference. And I'd say a short run is all you'd manage to make with
this idea. ;-)

--
*He who dies with the most toys is, nonetheless, dead.

Dave Plowman London SW
To e-mail, change noise into sound.
 




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