[Elecraft] D-104 Element Replacement

Wilson Lamb infomet at embarqmail.com
Wed Feb 23 13:17:23 EST 2022


No actual replacement found so far, but several nice dynamic/electret conversions. 
Encouraged by this posting on QRZ, D-104 Element Repair - Mike Harrison (smugmug.com), I decided there was nothing to lose by looking inside. 
It's actually no problem at all and I found multiple problems: linkage between diaphragm and element loose at both ends, diaphragm perimeter glue completely gone, wooly stuff between screen and diaphragm completely gone. 
I did a very quick repair, attaching the linkage to the element with beeswax and the diaphragm to the linkage with rubber cement. 
Preliminary testing on the air indicates the response is very similar to that of a believed good unit, so I'm declaring conditional victory until better tests are available. 
SO, the moral;  You may not need an element at all, if you are willing to fool around a while and repair what's wrong! 
Not like I had nothing to do, but it's nice to get to the bottom of something. 
WL 
 


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