Quote:
Originally Posted by n4aeq
Many years ago in the TV bussiness we would use a alliance tenna rotor
4 - wire on a 3 - wire
channel master control box. Now i have the same combination i need to
install on my 6 meter beam
however i fot got the wiring setup?
Does any remember the proper wiring, i think it was combine 1&2 or 3&4
or maybe just dont use #4 but i cant remember the wiring now.
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For Alliance, 1 and 2 are CW/CCW and 3 is common. 4 is the sync pulse (momentarily grounds every 6 degrees).
For Channel Master, 1, 2 and 3 are the same as alliance(not sure on CW vs CCW but easy to check by hooking up)
HOWEVER:
Channel Master uses 18 volts AC for the motor, and Alliance uses 24volts ac—won’t you run excessive current on the alliance rotor motor by undervoltage?
I was going to try the same thing and was going to place a properly phased 6 volt transformer in series with the common …
Also, alliance used a 155-210 mfd phase shift capacitor—I’ve seen that Channel Master uses a 130mf, can anyone confirm?? If true, It might make sense to put a 50mf capacitor (bipolar, 50v) from terminal 1 to terminal 2.
I really like the increased load capability of the Alliance--too bad they aren't manufactured anymore.