"Edward Knobloch" wrote in message
...
Hi, Gang
I stumbled upon web site with info about replacing
the bipolar transistor amplifier in the base of some D-104 mics
with a JFET amplifier for improved performance.
http://www.ko4bb.com/Manuals/08%29_M..._N9WB_rev2.pdf
73,
Ed Knobloch
Thanks, I will save this for future reference.
Paul P