[AMRadio] Re: AMRadio Digest, Vol 6, Issue 45

Mahlon Haunschild mahlonhaunschild at cox.net
Sat Jul 31 09:41:47 EDT 2004


I've some experience at this.  Problems I've seen:

-  Dry/congealed lubricant in the VFO bandswitch shaft bushing (ANY 
friction in the VFO switch will stop the mechanism cold)
-  Imperfect machining of the drive cam, making the pins bind up instead 
of passing through
-  Height/depth of the drive cam set wrong
-  Drive arm too far away or too close to the drive cam
-  Registration off (e.g. VFO set for 11 meters when the rest of the 
bandswitch isn't).  The VFO switch has three positions:  160, 80 thru 
10, and 11.
-  Broken VFO switch (God forbid)

Is your problem any of these?  I have a Ranger assembly manual that 
contains the complete set-up procedure for this, but lets try to 
eliminate the obvious first.  Your problem is solvable so long as 
nothing is broken


Mahlon - K4OQ

ps:  Have any of you ever seen one of the Johnson assembly manuals?  How 
anyone ever managed to assemble a Ranger or a Valiant with this 
information is beyond me.
> ----------------------------------------------------------------------
> Message: 1
> Date: Sat, 31 Jul 2004 00:34:25 -0400
> From: "Byron Lichtenwalner" <w3wkr at verizon.net>
> Subject: [AMRadio] Viking Ranger Bandswitch-VFO linkage
> To: <amradio at mailman.qth.net>
> Message-ID: <002e01c476b7$a9b7bc20$6901a8c0 at ann>
> Content-Type: text/plain;	charset="iso-8859-1"
> Hello Friend    
> I am in the process of restoring a Ranger I.  The bandswitch does not switch to the 11 meter position at the last clockwise click of the bandswitch.  Is there a prescribed set-up procedure for this mechanical linkage?
> Byron, W3WKR

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