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20k 7pin pot..

Printed From: Speakerplans.com
Category: General
Forum Name: Electro Frying Forum
Forum Description: Talk about drivers, processors and mixers
URL: https://forum.speakerplans.com/forum_posts.asp?TID=105619
Printed Date: 18 April 2024 at 7:06am
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com


Topic: 20k 7pin pot..
Posted By: msoundsystem
Subject: 20k 7pin pot..
Date Posted: 19 August 2020 at 11:28am
Looking for a 20k 18mm shaft length 7pin pot same as the one in the photo in the link.. anywhere in the uk that sells them? I might be blind but carnt seem to find them. Cheers  https://www.soundservice.gr/e-shop/en/product.php?products_id=3727" rel="nofollow - https://www.soundservice.gr/e-shop/en/product.php?products_id=3727



Replies:
Posted By: kedwardsleisure
Date Posted: 19 August 2020 at 1:43pm
alps RK14 series but whats the track law, does it have a centre click, whats the orientation of the flat, etc

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Kevin

North Staffordshire



Posted By: msoundsystem
Date Posted: 19 August 2020 at 4:12pm
Cheers kevin. It has a centre click as its for a bass eq pot on a vestax mixer.. what do you mean by the orientation of the flat? Do you mean which way around are the pins on the body of the pot?? 


Posted By: kedwardsleisure
Date Posted: 19 August 2020 at 10:53pm
if its an OEM part then the flat can come at any angle with relation to the track, so if you get the wrong one, the knob pointer will be in the wrong position compared to the position of the actual track. At one time the flat would always be opposite the pointer direction but these days it can be anywhere.
The track law is important too, otherwise centre position may not correspond to 'flat' eq but some random boost or cut.

OEM pots may also have the shaft shoulder at a non-standard height, meaning when you push the knob on, it either sits high or so low thatit scrapes on the deck plate.


I'd think the best place for these would be mouser or digikey, but study the datasheets and full part number before ordering. You may have to settle for one that's close but not perfect, eg a long shaft that needs filing down or no centre-detent.

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Kevin

North Staffordshire



Posted By: Peter Jan
Date Posted: 21 August 2020 at 8:11pm
I'm almost sure this is the same pot as in some Allen & Heath Xone mixers.
They are 7 pin, 20k with center click and used as EQ pots.
I can check it out on Monday, when I have one in hand, measure height and all...


Posted By: Peter Jan
Date Posted: 24 August 2020 at 6:10pm
No luck ... three candidates, but it's shaft too short or mounting different or both.


Posted By: Boxes-R-Blue
Date Posted: 25 August 2020 at 10:41pm
There are quite a few tricks you can play if you can't get the exact baby, not least of which cutting the shaft of the old one (Carefully noting orientation!!) drilling a couple of 1mm holes clean through the length (Use a drill press and square!!) and then have cut the shaft of the new one (Square, use a pile of washers as a jig!) you use the old shaft to drill 2 holes in the stub of the new shaft and use a couple of bits of stiff wire (welding rod is ideal) as re-enforcement to epoxy the 2 back together..

:-)


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Kinda Been there, Kinda done that, YOU COULDN'T handle my bar bill!


Posted By: msoundsystem
Date Posted: 28 August 2020 at 12:41pm
Sorted in the end... could not get the same size pot with the legs vertical,  so i got a 20k pot with horizontal legs and extended them with some resistor legs to go through the board. All working! Cheers for ur help 



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