[Elecraft] Operation of silver lollipop

[Bob Nielsen]

The Heil web site has instructions for installing one of their elements
in a D104.  I need to dig around the garage and try to locate the one I
have had since 1953 (unused since ~1961) and perform that mod.  I'll
also have to replace the cord, since it is all dried up and cracked.

I understand that the Heil element for the K2 is custom and different
than the HC-4 or HC-5.  Does anyone know if that type is available by
itself or if the others work well with a K2?

Bob, N7XY

On Sun, Oct 26, 2003 at 10:50:56PM -0800, Ron D'Eau Claire wrote:
> The "Silver Lollipop" D104 mic is an icon of the past. Depending upon how
> old it really is (it was only recently discontinued although it was
> manufactured for over 50 years) you might not be giving it the best chance
> just hooking it to a K2. The original D104 was a crystal microphone with a
> very high impedance. The K2, like most newer rigs, is designed for a dynamic
> element. Later D104's used impedance transformers and I believe some even
> had preamps to match the newer rigs. But if you have a true "old" D104, the
> impedance mismatch can cause a very tilted frequency response. If so, it's
> easy to cure, but it's worth looking into if you intend to use the venerable
> "lollipop" microphone on phone.
> 
> Ron AC7AC
> 
> -----Original Message-----
> 
> 
> 
> Hi
> 
> I  inherited this silver lollipop recently with the numbers "D-104 / 
> T-UG9" on it. It was new-in-box and it seemed a shame to let it languish 
> in the cellar. So yesterday I wired it up to an 8-pin mic connector and 
> had my xyl judge the audio out of the K-2 in test mode (SSBA BAL) while 
> I fooled with the OP1 bfo setting.
> ...
> but now that I see that ssb qrp is viable, I guess I'll give 
> it a try again some time.
> 
> 73,
> Lenny W2BVH
> 
> 
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-- 
Bob Nielsen, N7XY                          n7xy (at) n7xy.net
Bainbridge Island, WA                      http://www.n7xy.net