[TowerTalk] TIC Potentiometer
cc-6569 at comcast.net
Sat Apr 5 23:17:46 EDT 2014
I just realized we have 2 TIC Potentiometer threads going here on TT.
My TIC ring is a model 1122E manufactured 11/05. I bought it unused
still in original packaging in 2012. It was up without issue for a year
until I had a lightning strike that damaged the original pot. The
replacement pot only lasted about 6 months after a cold wet winter here
in N. IL.
The Alfa SPID rotor has several magnets mounted on a large gear that is
driven by a smaller gear on the motor shaft. Each magnet swipes the
magnetic reed switch mounted on a nearby bracket giving multiple pulses
per revolution of the larger gear. My SPID gives one pulse per degree
of rotation while some give 2 pulses per degree according to the RT-21
manual. The TIC motor / direction assy I have is very similar and that
is what I had envisioned to try and implement. I would need to know how
many ring rotor degrees there are per revolution of the larger gear that
drives the pot.
73, Fred KG9X
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