Mailing List lml@lancaironline.net Message #61829
From: Paul Miller <pjdmiller@gmail.com>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] Re: Contactors vs Solid State Relays
Date: Wed, 02 May 2012 16:32:14 -0400
To: <lml@lancaironline.net>
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Well, Bill, using 1960's NOS parts for a modern airplane?  That's about the dumbest idea I've heard today.

Paul
Legacy
Spruce Creek
(P.S.  I'm using a dozen 1961 NOS spark plugs and the Legacy purrs much better than my mega-ohm'd resistance chumpions so good luck as I'm thinking your relay is well preserved and well built).  
On 2012-05-02, at 3:15 PM, Bill Wade wrote:

 
  Aircraft Spruce carries a solid-state “Superswitch” contactor from Lamar Technologies. Has anyone used these?
 
  FWIW there are a number of NOS 24V 50A Leach contactors for sale on Ebay. I got a few with the idea of replacing the hydraulic pump relay supplied by Lancair. They arrived in sealed original packaging- no date of manufacture but my guess is 50’s or 60’s. The exposed insulation appears to be sound and the units function properly.
 
  The Leach unit weighs 8.12 oz., about 5 oz. less than the Lancair style and the windings measure 152.7 Ohms vs. 62.7. The pump draws about 30A at system pressure according to the Oildyne chart. Comments?
 
  Thanks- Bill Wade

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