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Article #2064

Re: Coreless Servos on Y harness

#2064
From: bloom
Date: Thu, 07 Jan 1993 14:11
20 lines
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In article <16B4D7795.D2KAK@VM1.CC.UAKRON.EDU>, D2KAK@VM1.CC.UAKRON.EDU writes:
> In one of my planes it is necessary to use two Futaba coreless servos
> on a "Y" harness. The problem is that when the servos are connected
> and the radio turned on, the servos chatter like they're trying to
> find center all the time. I have tried caps across the power leads,
> a stutter stoper (2 parts of a hex inverter on the signal line),
> and a seperate battery pack for the servos. NO LUCK. I called those
> wonderful folks at Futaba and after being on hold for about 45 minutes
> they said that if the servos chatter on a Y harness don't use the servos
> on a Y harness. And they pay those guys for this stuff! I have also
> experienced the same problem on two different receivers, so the receiver
> isn't the problem. The radios are 7UAP 1024 PCMs.  ANY ADVISE, COMMENTS,
> SOLUTIONS?  I am considering buying a JR 10 Channel PCM. Do they have the
> same problem?     THANKS GROUP!!!!!
>  

I'm no electronic whizbang, but could it be that the voltage to the 
servos is too low?  Maybe you could use a 5 cell pack.  Can you 
avoid the Y-harness by using the electronic mixing capabilities of 
the 7UAP?  Can you use a different brand of servos on your Y-harness?
Technical Details
Message-ID: <1993Jan7.081151.2579@inland.com>
Path: arc1-ca.pugleaf.net!sparky!uunet!usc!cs.utexas.edu!natinst.com!news.dell.com!gator!inland!bloom
References: <16B4D7795.D2KAK@VM1.CC.UAKRON.EDU>

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Path: arc1-ca.pugleaf.net!sparky!uunet!usc!cs.utexas.edu!natinst.com!news.dell.com!gator!inland!bloom
From: bloom@inland.com
Newsgroups: rec.models.rc
Subject: Re: Coreless Servos on Y harness
Message-ID: <1993Jan7.081151.2579@inland.com>
Date: 7 Jan 93 08:11:51 CST
References: <16B4D7795.D2KAK@VM1.CC.UAKRON.EDU>
Organization: Inland Steel Company; East Chicago, IN
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