[AH] diy: telephone handset -> balanced carbon mic w/ mono headphone

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From Kenny Balys
Sent Tue, Apr 24th 2018, 05:03

Convert an old telephone handset into a balanced carbon microphone and 
mono headphone combination. With this you can really talk to your 
audience :)

Here is a schematic that works for me. Hope this helps someone.

Apologies for the scruffy penmanship:

http://www.beatkamp.com/telemicrophone.shtml