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Re: [TowerTalk] UST Tower MA770 Starting Motor Capacitor

To: Raymond Benny <rayn6vr@gmail.com>, "[TowerTalk]" <towertalk@contesting.com>
Subject: Re: [TowerTalk] UST Tower MA770 Starting Motor Capacitor
From: "Joe Subich, W4TV" <lists@subich.com>
Date: Tue, 30 Jan 2024 20:52:02 -0500
List-post: <mailto:towertalk@contesting.com>


> How rigid is the 375MFD value?

Not that rigid ...

I have found on eBay a cap, 378-454 uF MFD at 250VAC. Would this meet
the starting cap value?
Easily.

73,

   ... Joe, W4TV

On 1/30/2024 8:39 PM, Raymond Benny wrote:
  I've had a MA770 tubular tower in the air for the last 15 years. I got it
second hand 20 years ago. It's probably 40 years old. I need to replace the
raising motor starting cap.I have the old cap in my hand and all I can read
is 375 MFD. The motor operates on 120VAC. The motor name/data plate has
been painted over, so I cannot read anything about it

I have several questions:
Does anyone have the make, model number or manufacturer info for MA770
motor? And the info on the starting cap?

How rigid is the 375MFD value? I have found on eBay a cap, 378-454 uF MFD
at 250VAC. Would this meet the starting cap value? I know I don't need 240
VAC rated, but one rating should not be a problem. The measurements given
for the cap will fit into the external cap holder.

Thanks,
Ray,
N6VR/W7YA




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