[Elecraft] D 104

[Grant Youngman]

Or a simple matching transformer -- Hi-Z to Low-Z.  But in either case, you can't run a naked D-104 into the K3 mic input. The element needs to see a very high impedance. 

Grant/NQ5T

Sent from my iPhone

On Jun 4, 2011, at 1:45 PM, "Lou Kolb" <loukolb at gmail.com> wrote:

> You'd also be well advised, if its an unamplified D-104, to add one of the 
> op-amp matching circuits which can be powered from the K3.  It'll make the 
> D-104 look into the 10 megohms or so that it likes and it will sound much 
> more natural. a Quic google search should yield a few of these circuits. 
> Lou WA3MIX
> ----- Original Message ----- 
> From: "Sam Morgan" <k5oai.sam at gmail.com>
> To: <elecraft at mailman.qth.net>
> Sent: Saturday, June 04, 2011 1:30 PM
> Subject: Re: [Elecraft] D 104
> 
> 
>> I use an amplified D-104 with my K3, excellent audio reports.
>> I have also used an un amplified D-104, with equally good reports.
>> 
>> Try your local radio shack for the 8 pin jack.
>> 
>> 8-Pin Ham Microphone Plug
>> Model: 274-025  | Catalog #: 274-025
>> $4.19
>> 
>> http://www.radioshack.com/product/index.jsp?productId=2062445
>> 
>> GB & 73
>> K5OAI
>> Sam Morgan
>> 
>> On 6/4/2011 12:22 PM, CHARLES WHITE wrote:
>>> I would like to connect a D 104 mike to the K3 but the D 104 is a 4 pin 
>>> jack and the K3 is 8 pins.
>>> 
>>> I have not been able to find a 8 pin jack for the mike at either MOUSER 
>>> or DIGIKEY suppliers.
>>> 
>>> Does any one use the D104 with the K3?
>>> 
>>> Any advise?
>>> 
>>> Thanks
>>> 
>>> Charlie White
>>> K6TBB
>>> San Diego
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