Maestro VFO knob rotates "by itself"

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  • Problem
  • Updated 2 months ago
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Main VFO Knob rotates by itself downwards if set at about 3 o'clock and 9 o'clock. Is there an easy fix to this imbalance. (Maestro connected direct to 6500.)
Thanks, David N4DOV.
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N4DOV n4dov

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Posted 1 year ago

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Tim - W4TME, Customer Experience Manager

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Yes.  I am converting this Community post to a HelpDesk support ticket so we can evaluate if your Maestro tuning knob requires a counterbalance weight.
(Edited)
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Michael Coslo

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We might need to call in an Exorcist! ;^)
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Ross - K9COX

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Mine has done the same thing, hasn't been annoying enough to pursue it. Just assumed a bit more friction (felt washer) would take care of it.
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Burch Akin

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Mine does this as well.  
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Tim - W4TME, Customer Experience Manager

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Open a HelpDesk ticket.
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Tom

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It is purely a result of imbalance of  the knob as it has a dimple on one side only. Take the knob off the shaft, from a thick soldering wire make a small coil and insert it into the void near the dimple on the rear of the knob. Experiment with the amount of  wire until balance is maintained at 9 and 3 position and fix wire with a dab of glue.
It is a version of  an old trick from Collins gear which improved spinning ability of VFO knob.

Tom, SP7WT
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Tim - W4TME, Customer Experience Manager

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If you open up a HelpDesk ticket, we'll send you one free of charge.
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k3Tim

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Hi Tim
I appreciate the great offer / service from FRS but would rather not bother you folks with this. I have the lead / scale / glue and can FYI-IT. We have to have some fun out here in user-land.  :-)

_..--
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Tim - W4TME, Customer Experience Manager

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Honestly, I do not know how much additional mass is required.  And that specific information may take some time to obtain, so it is your call how you want to move forward.
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k3Tim

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Hi Tim
Understood. One should be able to balance the knob on a 'point' and eventually find the required weight - or some variation of this. Will figure it out.

Thanks ....

_..--
(Edited)
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Steve K9ZW, Elmer

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The particular radio knob being balanced is different, but the technique is sound - http://www.dl7maj.de/NRD535_Tuning-Knob.pdf

It is possible to use a slice off a stick on weight (like they use on bicycles) if you would rather not use glue.

73

Steve K9ZW

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kjave63@yahoo.com

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I have the same problem since it was new but I figured a small issue , I’ll just lock the vfo. But that is not very efficient.
I myself would like to open a ticket. Thanks!
KJ
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Bob G W1GLV

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Guys, FRS has a simple fix that works well. When the fix kit arrives, you will have a nut and two pieces of tape once installed it will solve your problem.
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kjave63@yahoo.com

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I would like to receive this fix kit and instrctions. How do I go about receiving this?
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Tim - W4TME, Customer Experience Manager

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Open a HelpDesk support ticket.
https://helpdesk.flexradio.com