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.
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.
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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.
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.
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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.
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).
No joking. I have used this pot two times for amplifier upgrade for devices, that are very often in use by a DJ.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.
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.
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thank you very much for the pictures. Unfornately the available types are obviously "New Old Stock" and no longer in currently manufacturing.
Is it the manufacturer about follow URLs ??
Products--Rotary Pots
Audio
Products--Slide Pots
http://www.nobleusa.com/pdf/sy.pdf
here more URLs:
http://www.diyaudio.com/forums/everything-else/56274-noble-stereo-pot.html
potentiometers, switches and attenuators homepage
Is it the manufacturer about follow URLs ??
Products--Rotary Pots
Audio
Products--Slide Pots
http://www.nobleusa.com/pdf/sy.pdf
here more URLs:
http://www.diyaudio.com/forums/everything-else/56274-noble-stereo-pot.html
potentiometers, switches and attenuators homepage
I don't understand this term.
perhaps you mean a lightspeed attenuator like this?
DIY "Lightspeed Attenuator" - Passive LDR Volume Control (audio optocouplers)
Thank you. For new projects probably a good approach (I haven't experiences with light dependent resistor's and their character by various ambient temperatur and the dynamic behaviour by music signals, thus I haven't a statement).
The reason for start this thread was the aim, to find such potentiometers for replace defectice and oxidated ones in old amps, so that then only will be disassembled and cleaned by the next maintenance (instead of replacing it again).
The reason for start this thread was the aim, to find such potentiometers for replace defectice and oxidated ones in old amps, so that then only will be disassembled and cleaned by the next maintenance (instead of replacing it again).
I am still looking for currently available devices in the kind of the mentioned vintage potentiometer.
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