[MRCA] T-17 rebuild

[Jeep Platt]

Breck
Thanks much for the info. I had never considered removal of the outer rim. Clever man that you are!
I am sometimes am want to use the mic element from H-33PT handsets, if they can be found. I will try your method next time.  Funny... the method of taping an element on the front of a T-17 looks like a pig wearing a gas mask...!
Jeep K3HVG

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________________________________
From: mrca-bounces at mailman.qth.net <mrca-bounces at mailman.qth.net> on behalf of B. Smith <smithab11 at comcast.net>
Sent: Monday, July 18, 2022 5:13:32 PM
To: Military Radio Collectors Association <mrca at mailman.qth.net>
Subject: [MRCA] T-17 rebuild

Several have asked about replacing the carbon microphone element  in the T-17. I usually use a standard telephone button and trim it to fit inside the T-17 housing by removing the outer frame. The button then fits inside the T-17 housing and the outer cover  with the small center holes can be fitted. (Drill additional center holes if necessary to improve voice response) Other have taken a T-17 housing and machined the interior  to  enlarge it to accommodate the larger button but removing the outer frame  with a small file is faster and easier.  There is no compassion between the audio output level between the original T-17 cartridge which has aged and the telephone button, the button  is loud and very crisp.
Info on the T-17 including the button mod,capacitor info, rewiring etc can be found at  the link below. In addition there is a chart supplied by WA5CAB on the different  contract dates and manufacturer  of which  I've added a couple of entries. I will add additional info to the chart if I receive the information.
Z
http://k4che.com/T-17/T-17.htm

[cid:part1.A04C99BE.6D96C5E2 at comcast.net]
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