John,

If your D104 is an older one with the high impedance crystal or ceramic element, yes it will not work so well (if at all).

There was an article in QST about a year ago with a circuit design that had a very high impedance input and the low impedance output required by modern day radios, although a transformer with the right ratio should work too.

Another alternative is to change the element in the D104. Heil offers a kit to do just that - check www.heilsound.com for info.

My D104 with an HC5 element draws comments from time to time.

73,
Don W3FPR

John Huggins wrote:
Thanks for the information all.

So...

I guess hooking up a D104 straight to K2 is not going to work out so well. Yes I know this is like putting tail fins on a Ford Taurus, but the kids really dig talking into a mic like that during times we promote ham radio.

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