[ARC5] Receive Drift Testing

Glen Zook gzook at yahoo.com
Sun Dec 13 17:48:30 EST 2015


There is a Hallicrafters reflector on mailman.qth.  However, not that active.
I would do a "Google" search on Hallicrafters and there should be a LOT of links.
Hallicrafters used the "damp chaser" in a number of receivers including some SX-101 units.  They do help stabilize the frequency.  However, there are other ways of doing this.  Sorta like the Hammarlund advertisements for the receivers with the clock / timer wherein it was suggested to use the timer to turn on the receiver at least an hour before using to improve the frequency stability. Glen, K9STH Website: http://k9sth.net
      From: "millerke6f at aol.com" <millerke6f at aol.com>
 To: gzook at yahoo.com; jeepp at comcast.net; arc5 at mailman.qth.net 
 Sent: Sunday, December 13, 2015 1:47 PM
 Subject: Re: [ARC5] Receive Drift Testing
   
Hi Glen
 thank you for the data on the SX111 drifting.   It's actually a fairly nice receiver that I've had for many years although not used that much.  I'm not sure the "Damp Chaser is an asset or a liability"  as a thermal stabilizing device.  Base on the drift rate I'm inclined to look at the Neg comp capacitors to see what can be done electronically.  But that's another project.  BTW can  you point me to the hallicrafters links?
thank you
 


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