[Boatanchors] Mic's / RED FLAG

[Glen Zook]

The problems with the original D-104 cartridge are

They are very susceptible to humidity.  That is, the salts dissolve when exposed to humidity for a long time.

They are very susceptible to shock.  That is, drop the microphone, or hit it very hard, and the cartridge goes bad.

Finally, and this is the most important, Astatic no longer makes a replacement cartridge!

Glen, K9STH

Website:  http://k9sth.com


--- On Mon, 7/18/11, Greg Mijal <bluebirdtele at embarqmail.com> wrote:

I'm wondering if something else is not correct with the transmitter's audio section.  The D-104 has tons of voltage output due to it's large size.  The Kobitone has less voltage out.  The only way a Kobetone would make an improvement is if Larry has a bunch of bad d-104 heads.  I suggest driving the audio with a signal generator to find the correct amount of audio voltage to get the job done, then compare it with the D-104's. The Kobetone cartridge is a good way to go for any xtal mic replacment.  I have two hand mic's and a re-worked D-104 usiing them and you really cannot tell the difference on the air.