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Re: [Amps] conductive grease for roller inductor

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Subject: Re: [Amps] conductive grease for roller inductor
From: "David Jordan" <>
Date: Mon, 26 Nov 2012 16:56:27 -0500
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MY understanding is the rotor coils were designed to be sacrificial ...
clean the contactors, shaft bushing, clean the coil and use it up.  

Placing grease on the coil may do no harm but if the grease is built-up
sufficiently it may get burnt-up at a high current tap points... 

I've been using a Hallicrafter BC-393A coupler, yeah over 45 yrs old...
still has some silver on the copper coil.  Works fine... never greased it.
One issue with gease is that it will attract dirt and tiny bugs that find
their way inside the unit...those items will not improve performance!

A video of the coupler:

The coupler will handle the legal limit all day long... saw one for sale in
2008 for $400.  Don't know if it sold... its no Alpha 4040 ;-) 


-----Original Message-----
From: Amps [] On Behalf Of Alex Eban
Sent: Monday, November 26, 2012 5:29 AM
To: 'DAVE WHITE'; 'Ralph Young'; 'Eddy Swynar'
Subject: Re: [Amps] conductive grease for roller inductor

You can try Noalox ...

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