[AMRadio] Xtal mike?

Geoff w5omr at w5omr.shacknet.nu
Mon Mar 14 15:13:28 EST 2005

StephenTetorka at cs.com wrote:

>Hi all:
>My restoration rig requires a crystal microphone.
>Your reply is appreciated.

Astatic D-104.  Available at a reasonalbe cost at most any hamfest...

make sure you take your milivolt meter along, to check the output. 
Many D-104 heads were dropped or damaged in some form or

John/WA5BXO devised an equalizing circuit to flatten out the response
of a crystal mic cartridge.  check out his site for that, and more AM Radio
hinks, tips and kinks at http://qsl.net/wa5bxo

73 = Best Regards,

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