[Elecraft] Mic plug wiring?

Fri Sep 12 17:03:00 2003

Here is the listing straight from the Radio Shack Site
$3.99	
Brand: RadioShack
Catalog Number: 274-025
Model: 274-025
Fits microphone input jack of many Amateur Radio transceivers.

73
John
N5BSD
ARRL NTS ORS NTX Digital 

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Tom, W6WW
Sent: Friday, September 12, 2003 2:51 PM
To: Don Wilhelm; - Elecraft
Subject: Re: [Elecraft] Mic plug wiring?

That Radio Shack part number shows a 4-pin plug, not the 8-pin needed.

----- Original Message ----- 
From: "Don Wilhelm" <[email protected]>
To: "Tom, W6WW" <[email protected]>; "- Elecraft" <[email protected]>
Sent: Thursday, September 11, 2003 6:49 PM
Subject: Re: [Elecraft] Mic plug wiring?

> Tom,
>
> A mic plug is available at Radio Shack - 274-001 CB & Ham Microphone 
> Plug. How you wire the plug depends on how you configured the mic 
> header on the
K2
> front panel board as well as the particular D-104 mic and stand that 
> you have there - so I really can't answer that part for you without a 
> lot more information.
>
> Now about your D-104.  If you have the amplified version, it should 
> work fine - just add the plug to the end of the mic cable.
>
> However, if you have the unamplified version, the mic element a 
> crystal
type
> and needs a high impedance (10K or greater) at the transciever. 
> Unfortunately, the K2 (and most modern rigs as well) are designed for 
> a
low
> impedance (about 600 ohm) microphone.  You can add a high impedance 
> input preamplifier as several folks have done - there was an article 
> in QST a while back on using the D-104 with modern transceivers that 
> may help you.
>
> I solved the problem here by replacing the crystal mic element with a 
> Heil element - I like the lollipop mic and couldn't resist trying the 
> Heil element too - I got the best of both worlds.  YMMV.
>
> 73,
> Don W3FPR
>
> ----- Original Message -----
>
> | I have just finished the KSB2 and need to connect my D104 
> | microphone,
but
> I
> | have some questions I hope someone can help me with.
> |
> |  - Where do I buy a plug for the mic cable? What is the nomenclature

> | and
> who
> | sells it?
> |  - Which wires go where on the plug.
> |  - Do I need to modify the K2 mic input in any way to accommodate 
> | the
> D104?
> |
>
>
>
>

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