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 <[email protected]> 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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