[MRCA] T-17

[W2HX]

If you decide to do another run of these pcb’s, count me in.  Maybe you can drum up enough interest in these groups to make it worth doing a new run.


73 Eugene W2HX/4
My Youtube Channel: https://www.youtube.com/@w2hx/videos


From: mrca-bounces at mailman.qth.net <mrca-bounces at mailman.qth.net> On Behalf Of ac2eu--- via MRCA
Sent: Thursday, April 30, 2026 10:49 PM
To: B. Smith <smithab11 at comcast.net>; Jason WA6BBQ <w6iee.73 at gmail.com>
Cc: Military Radio Collectors Association <mrca at mailman.qth.net>
Subject: Re: [MRCA] T-17

Yes, you wouldn't know it had any mod at all , except that it would produce strong clean modulation.

I used to have a 1 inch square pcb that fit into most T-17 designs, but I sold out of them..
I've modified and simplified the design since then, so I'd have to re-design the pcb. anyway.
It's not a big demand item, so I make them on a proto board as needed for restorations.

On Thursday, April 30, 2026 at 10:12:44 PM EDT, Jason WA6BBQ <w6iee.73 at gmail.com<mailto:w6iee.73 at gmail.com>> wrote:


Of the finished product? It’ll just look like a normal T-17!

On Thu, Apr 30, 2026 at 19:07 B. Smith via MRCA <mrca at mailman.qth.net<mailto:mrca at mailman.qth.net>> wrote:

Perhaps you could take a photo and copy the diagrams- I could post it to my web page with due credit of course.
73 k4che
[cid:image001.gif at 01DCD95E.B0DC40D0]
http://k4che.com/T-17/T-17.htm


On 4/29/2026 8:46 PM, ac2eu at yahoo.com<mailto:ac2eu at yahoo.com> wrote:
There also more "electronic" mods using an electret microphone.
I made a stable two transistor self biasing carbon mic replacement and also a less stable but very  simple single transistor type.
They both will produce clearer modulation than a NEW T-17 ever did . Carbon has very poor frequency response and they justt get worse over time.

On Wednesday, April 29, 2026 at 08:06:21 PM EDT, B. Smith via MRCA <mrca at mailman.qth.net><mailto:mrca at mailman.qth.net> wrote:


The Air Show and Military Rally season has started. Perhaps it is time to consider an overhaul or repair of your T-17. There are several mods for more consistent output unless you enjoy banging the T-17 on the side of the table. That black taped telephone button repair is kind of tacky.
Z

http://k4che.com/T-17/T-17.htm

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