[TowerTalk] Need capacitor for Rotator

[Jim Lux]

I suspect that the value is not critical (given 20%+ tolerances on most big
capacitors)
Try using a motor start capacitor (I assume that you're not rotating all the
time...) They'll be inexpensive, and typically rated at 200-300V, and you'll
find a value near 155 uF.

Since Alliance doesn't actually make motors, what you really want is the
appropriate cap for the motor.  I assume it's a 24VAC two phase/reversible
AC motor.  50V is the lowest rating voltage for these sorts of parts.    I'd
call around to motor rewinding/repair shops. It helps if you know the
general size of the motor when talking to them (what sort of current does it
draw under load?... convert the watts to HP)

Mail order from McMaster Carr is a possibility.

----- Original Message -----
From: <ve6vdp at rac.ca>
To: <towertalk at contesting.com>
Sent: Monday, June 28, 2004 7:37 PM
Subject: [TowerTalk] Need capacitor for Rotator


I wonder if anyone can tell me where to find a capacitor for a Alliance
HD-73 rotator.
The value is 155uF 50VAC.

I've phoned around Calgary without luck.  Anyone know where in the Calgary
or even in Canada I would
get such a capacitor.

73
de Dave


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