[Milsurplus] ART-13 and mikes .

[asmagal at fc.up.pt]

Hello!

Both of you certainly know that there is a toggle switch hidden
behind the ART-13 panel, somewhere in the audio preamplifier
(I don't remember exactly where) with the function of selecting
between a dynamic and a charbon mike.
Forgive me if I am "teaching the Pater Noster to the priest" but,
just in case...

Best 73
Antonio
CT1TE.

Quoting Mike Hanz <AAF-Radio-1 at aafradio.org>:

> 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
>>
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