[Milsurplus] ART-13 and mikes .

[Mike Hanz]

Considering your QTH, why don't you use one of the WWII Commonwealth 
aircraft microphones, Pete?  That's what the ART-13 dynamic mike 
capability was originally designed to accommodate.  It would bypass what 
I suspect is cementing of the carbon granules in the mike you're using 
and you should have plenty of gain after you switch.

 - Mike

Pete Williams wrote:

>  G'day list... with nothing better to do,  I put my ART-13 on 80M  last
>nite for  first time in 10 years or more  via new  AC supply. Comments were-
>as to be expected - that modulation low  which I've heard is a common
>complaint.
>Apart from  modifying the  audio module for more  gain, is there  any virtue
>in increasing the  current thru' the  carbon mike for more output   and if
>so  does any one  have any clues on which resistors are  removed /lowered
>in value in the front end.
>Alternatiive is to use  a high out put  dynamic  but what ?
>
> Pete D.Williams
>jupete at bigpond.net.au
>METUNG 3904 AUSTRALIA
>