Re: mic cables

["IronMan Mike Curtis" <ironman@xxxxxxxxxxxxxxxxx>]

Make sure to get the WGT-15 model, with 1/4" plug.   I couldn't find input
impedance informarion, so you might want to call or contact Nady.  If it's
much under a meg, or unswitchable phantom powered, it's not good for crystal
mics.

On Friday, September 19, 2003 9:21 PM [GMT-7=PDT],Howard Chandler
<chandler@xxxxxxxxx> wrote:

> Oops, I forgot the link.
>
> http://www.etronics.com/product.asp?stk_code=nadencore1lt&svbname=16
>
>
> ----- Original Message -----
> From: "Howard Chandler" <chandler@xxxxxxxxx>
> To: "Howard Herrnstadt" <herrnstadt@xxxxxxxxxx>; <harp-l@xxxxxxxxxx>
> Sent: Friday, September 19, 2003 10:53 PM
> Subject: Re: mic cables
>
>
>>
>> Howard,
>>
>> Without getting all scientifical, the bottom line is to use a
>> balanced low impedance cable for long distances.  These are just as
>> suseptable to static electrical charges (caused by the triboelectric
>> effect) but because the signal travels in a differential pair, any
>> noise common to both signal wires is canceled when the difference in
>> voltage is amplified.  That's why PA mics (57's 58s etc), which are
>> often cabled long distances to front of house mixing boards are
>> lo-Z.  If you're amplifying a Hi-Z mike (like a jt-30) than I agree
>> with Barbeque Bob.  His solution A., using two transformers will
>> work, but who want's to be dragging a mic cable and transformers
>> around where it can be stepped on or catch on something.  The
>> wireless units seem to be getting very reasonable in price these
>> days.  If you like to go a wanderin', IMO this the way to go.
>>
>> Here's one for under 100 clams.  I only just looked this up on the
>> web. I've never used it, so this is not an endorsement.
>>
>> Good luck.
>>
>> Howard Chandler
>>
>>
>> ----- Original Message -----
>> From: "Joe Mahan" <joe.mahan@xxxxxxxxxxx>
>> To: <harp-l@xxxxxxxxxx>
>> Sent: Friday, September 19, 2003 9:01 AM
>> Subject: re: mic cables
>>
>>
>>>
>>>
>>> From: "Howard Herrnstadt"
>>>
>>>> I wonder if cables can be tested to show which ones have less
>>>> resistance. If a cable has a lower guage wire (i.e. thicker) it
>>>> might function more efficiently.
>>>
>>>
>>> The resistance won't be much of an issue for typical cable lengths.
>>> The more important factor is the tribolelectric characteristic of
>>> the wire. Good quality microphone cable has carbon-like powdery
>>> material in between the shield and the insulator to reduce the
>>> tendency of the cable to act like a piezo pickup and create
>>> electrical noise when the cable is moved.
>>>
>>> You can do a crude comparison of the triboelectric effect in cables
>>> by shorting one end, plug in the other end, and wiggling the cable.
>>>
>>> Joe
>>>
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>>
>> --
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