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Yes, I remember that design. It made for cheaper replacement servos and you could reverse the direction by changing the wiring. Not the greatest design from a noise standpoint though. Hanging your feedback pot off a bunch of extension wire does not lend itself to the smoothest servo operation.<BR>
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Ed<BR><BR><BR>
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Date: Mon, 4 Aug 2008 17:08:08 -0700<BR>From: bob@toprudder.com<BR>To: nsrca-discussion@lists.nsrca.org<BR>Subject: Re: [NSRCA-discussion] Kraft info<BR><BR><BR>
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<DIV>IIRC, Hobby Lobby sold a radio that was actually made by EK Logictrol. The servo amp was not in the servo, it was in the receiver (it was a big receiver). I think the servo direction could be changed by rewiring the connector or by reversing the connector - can't remember for sure. Anyone remember that? This would have been in the early 70s.<BR><BR>Bob R</DIV>
<DIV><BR>--- On <B>Mon, 8/4/08, Wayne Galligan <I><wgalligan@att.net></I></B> wrote:<BR></DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid"><PRE>Yeah me too.. Bonner right? but I was about 2 years old... ;-)
Wayne Galligan
----- Original Message -----
From: "Ron Van Putte" <vanputte@cox.net>
To: <bob@toprudder.com>; "General pattern discussion"
<nsrca-discussion@lists.nsrca.org>
Sent: Monday, August 04, 2008 11:35 AM
Subject: Re: [NSRCA-discussion] Kraft info
> Yeah, I can remember 6-wire servos.
>
> Ron VP
>
> On Aug 4, 2008, at 7:42 AM, Bob Richards wrote:
>
>> Jerry,
>>
>> Channel 04? That is a ham frequency, is it not? If so, then you will
>> need more than a crystal change to put it in the 72MHz band.
>>
>> The 4 pin connectors are Multicons. As long as the servos only have 3
>> wires, then you could probably get them to work with modern stuff
(just
>> make sure the logic level is compatible). I agree, is probably better
to
>> splice in new connectors. And servos that old, I would at least send
>> them in for service. The lubricant in the feedback pots could have
dried
>> out, and the wiring could have become brittle. Personally, I would
lean
>> towards installing new servos, at least on elevator and ailerons.
>>
>> (And, yes, I am old enough to remember 4 wire servos. But I am NOT as
>> old as RVP). :-)
>>
>> Bob R.
>>
>>
</PRE></BLOCKQUOTE></TD></TR></TBODY></TABLE><br /><hr />Reveal your inner athlete and share it with friends on Windows Live. <a href='http://revealyourinnerathlete.windowslive.com?locale=en-us&ocid=TXT_TAGLM_WLYIA_whichathlete_us' target='_new'>Share now!</a></body>
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