[MRCA] T-17

B. Smith smithab11 at comcast.net
Thu Apr 30 22:07:27 EDT 2026


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

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


On 4/29/2026 8:46 PM, 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> 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 <http://k4che.com/T-17/T-17.htm>
>
>
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