Potentiometer like Alps for complete disassembly wanted - diyAudio
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Old 22nd October 2009, 07:19 PM   #1
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Default Potentiometer like Alps for complete disassembly wanted

there are two screws at backsite on the blue alps potentiometer, but I can only remove the backsite. Unfortunately I cannot disassembly the whole device
because there are no removable elements on the shaft

I need a version special made for complete dismanteling to cleaning and polishing the contact aera and the brushes. Who knows more about such potentiometers?

I recall, that a very old and very large version from Alps allowed this.

Last edited by tiefbassuebertr; 22nd October 2009 at 07:23 PM.
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Old 18th February 2010, 04:34 PM   #2
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I still want such attenuator versions for disass'y (screws instead the commonly riveting)
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Old 15th September 2011, 01:18 PM   #3
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are there any news?
I need potentiometers for disass'y in the same mounting kind than follow rotary switches:
http://www.lorlin.co.uk/PDF/PT.pdf
I know only "one-way mounting" versions like the following pics (start at image number 2).
By the blue version there are two screws, but no removable elements on the shaft, unfortunately covered by the white type sticker.
Attached Images
File Type: jpg rotary switch for disass'y-I.jpg (30.4 KB, 408 views)
File Type: jpg Alps blue pot rear view.jpg (106.7 KB, 401 views)
File Type: jpg Alps poti for car radio.jpg (10.2 KB, 394 views)
File Type: jpg Alps standart version.jpg (28.7 KB, 393 views)

Last edited by tiefbassuebertr; 15th September 2011 at 01:32 PM.
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Old 16th September 2011, 04:38 AM   #4
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Check whether the insides r heat pressed, else pushing the shaft will get the guts out.

Gajanan Phadte
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Old 16th September 2011, 05:32 AM   #5
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Here you go.......

ALPS Potentiometer RK50112 10K 50K 100K 250K RK50 pot | eBay
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Old 16th September 2011, 06:30 AM   #6
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Quote:
Originally Posted by theAnonymous1 View Post
o.k. an attenuator for nearly US-$ 1000,-- resp. 700,--
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Old 16th September 2011, 06:38 AM   #7
Art M is offline Art M  United States
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Default How about Noble

Will this work ?

noblepot.jpg
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Old 16th September 2011, 07:13 AM   #8
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Quote:
Originally Posted by tiefbassuebertr View Post
o.k. an attenuator for nearly US-$ 1000,-- resp. 700,--
Yes, I was joking of course. A ridiculous price for any form of volume control, let alone a simple pot.

It can be disassembled though.
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Old 16th September 2011, 09:44 AM   #9
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Quote:
Originally Posted by Art M View Post
Will this work ?
Attachment 240228
Thanks for the picture.When also the shaft fixing is for disass'y, this would be an appropriate choice (please send also a picture from the shaft fixing so as the brand name).
Basiclly I need a pot like the blue Alps, but with metric threads, two nuts (one of them self-locking), and spring-rings on the shaft (in the aera behind the sticker) for adjust the pressure of the lamellares for contact.
I wonder, why not a lot of companies offer such attenuator/potentiometer kits (as usual by rotary switches).
Quote:
Originally Posted by theAnonymous1 View Post
Yes, I was joking of course. A ridiculous price for any form of volume control, let alone a simple pot.
It can be disassembled though.
No joking. I have used this pot two times for amplifier upgrade for devices, that are very often in use by a DJ.
A precision device - indeed. And very good suited for disass'y and cleaning. The costs of this small amp model at whole (Cambridge Audio A1) are approximately half of that one of the potentiometer.

Last edited by tiefbassuebertr; 16th September 2011 at 09:57 AM.
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Old 18th September 2011, 05:10 AM   #10
Art M is offline Art M  United States
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Default NOBLE potentiometer guts

Here are a few more photos. The whole potentiometer is easy to break down.
Attached Images
File Type: jpg Deck_1_1.jpg (97.0 KB, 300 views)
File Type: jpg Front plate_1_1.jpg (85.4 KB, 45 views)
File Type: jpg Mounted single deck_1_1.jpg (94.0 KB, 58 views)
File Type: jpg Rear plate_1_1.jpg (97.7 KB, 53 views)
File Type: jpg Rear shaft mount_1_1.jpg (95.8 KB, 31 views)
File Type: jpg Wiper_1_1.jpg (87.9 KB, 37 views)
File Type: jpg 5 decks_1_1.jpg (91.6 KB, 32 views)
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