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YokoGawa Decade Resistance Box 2793-03 Knobs

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Boater Sam
(@boater-sam)
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 YokoGawa Decade Resistance Box 2793-03 Knobs

Have this decade box for sale but before it goes I need to refit one of the knobs. Big black plastic instrument knobs.
It is loose on its spindle with maybe 90 degrees of free play but still turns the switch after that. Seems to move in and out very slightly when twisted through the free play as though there is a fine thread somewhere.
No grub screw and I have explored taking a cap off to see if its a collet but no cap that I can feel with a blade.
It does not pull off either.
Any ideas how these knobs are fixed please?
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Boater Sam.

Boater Sam

 
Posted : 27/06/2018 11:15 am
Nuvistor
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Sorry Sam cannot help, is this the one, a photo may jog a memory for someone?

283909E6 4FCB 4FA1 9D9D 75562C198ED4

Frank

 
Posted : 27/06/2018 12:10 pm
Boater Sam
(@boater-sam)
Posts: 500
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Topic starter
 

Thanks Frank, that's the cookie but mine is in a one deep equipment rack cabinet, quite smart.

Puzzling me no end, never had a knob on any gear that is like these.

Sam.

Boater Sam

 
Posted : 27/06/2018 12:49 pm
Doz
 Doz
(@doz)
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I had one of those in a former life. Would be interested in another if the money is right (loose knob or otherwise)

No idea how the knobs come off though. 

 
Posted : 27/06/2018 1:37 pm
Boater Sam
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Topic starter
 

Got a good light on the knobs and there is a filled area, covering a very small allen grub screw.

The spindle is not truly round, no flat or dent, hence the free play.

Tightened and its fine.

So I'll put it up for sale now after I have checked all my meters against it.

The recently bought AN8008 DMM is correct to better than half an ohm on all ranges, very impressive for such a cheap meter.

Boater Sam

 
Posted : 27/06/2018 5:39 pm
Boater Sam
(@boater-sam)
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Open to offers on this item.

I can't see how to send a private message on this forum.

Carriage will not be insignificant, its a big cabinet.

Sam.

Boater Sam

 
Posted : 27/06/2018 5:52 pm
crustytv
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Posted by: Boater Sam

I can't see how to send a private message on this forum.

Sam.

Hi Sam,

That's why I spent ages on creating the FAQ section  and populating it with guides for the membership. There is a specific FAQ on the pm system sadly though folk rarely if ever use the FAQ's.

Seek and ye shall find.  ? 

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Posted : 27/06/2018 6:04 pm
Nuvistor
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Couple of ways I know to send a PM.

1. Under the “leave a reply “ there is a welcome “ your name” and You have x messages unread. Click on the the X messages in blue will take you to the PM section.

2. In the Menu section expand My profile and select Private Messaging.

 

edit. The location of the welcome message you have x messages is different for portrait and landscape mode.

 

Frank

 
Posted : 27/06/2018 6:09 pm
PYE625
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Agree with Frank above, but like most things it takes a minimum of practise to become familiar.

When it comes to navigation on almost any website, I am proud to proclaim my complete success at being able to miss the blindingly obvious.

To understand the black art of electronics is to understand witchcraft. Andrew.

 
Posted : 27/06/2018 7:37 pm
Nuvistor
(@nuvistor)
Posts: 4609
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Don’t I know it Andrew, I seem to be getting slower and slower with IT, or with most things for that matter.

 

Frank

 
Posted : 27/06/2018 9:24 pm
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