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Old 6th August 2009, 05:54 PM   #1
Brit01 is offline Brit01  United Kingdom
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Default Potentiometers - USA

I have a colleague visiting from USA and am looking for some good volume pots.

Possibly ALPS.

Or something similar. BUT I don't really want to spend more than 10/15 USD on each one.

Any recommendations for suppliers in USA?


Cheers
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Old 6th August 2009, 06:48 PM   #2
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Mouser sells the Alps RK27, around $12 I think.
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Old 6th August 2009, 07:05 PM   #3
Brit01 is offline Brit01  United Kingdom
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Thks. 11.71 USD

What's the RK097?
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Old 6th August 2009, 07:31 PM   #4
Brit01 is offline Brit01  United Kingdom
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guys, there are 3 types of RK27 also.:

Snap-In Potentiometers 2-GANG 100K AUDIO

Potentiometers Flat 20mm 100k

Potentiometers Slotted 20mm 100k

What is the difference here?
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Old 6th August 2009, 08:20 PM   #5
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Quote:
Originally posted by Brit01
guys, there are 3 types of RK27 also.:

Snap-In Potentiometers 2-GANG 100K AUDIO

Potentiometers Flat 20mm 100k

Potentiometers Slotted 20mm 100k

What is the difference here?

Look at the datasheet (there is a link on Mouser)

One has a slotted shaft (for a knob or to use a screwdriver for turning)

There other has a flat on the shaft to aid in keeping the knob from rotating independently of the shaft when the knob is fastened with a setscrew or a knob with a D-shaped hole.
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Old 7th August 2009, 02:31 AM   #6
Brit01 is offline Brit01  United Kingdom
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Thks boywonder.
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Old 7th August 2009, 01:00 PM   #7
Brit01 is offline Brit01  United Kingdom
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Default Lots of noise

Question regarding a 10K alps I already have.

Lats night I put it into one of my linestage/headphone amps.

I'm getting huge amounts of noise when I go anywhere near the metal volume knob and hell breaks loose when I touch it.

Do I need to ground the outer casing or what am I doing wrong?

I have the third prong attached to the star grounding system.
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Old 7th August 2009, 06:48 PM   #8
Brit01 is offline Brit01  United Kingdom
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Just read that I should try connecting the inground connector to the outside casing.

I'll try this when I get home.
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Old 8th August 2009, 01:14 AM   #9
Brit01 is offline Brit01  United Kingdom
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update:


Yes it was the unearthed casing on the alps. I connected a wire from the screw to the ground and made it dead silent
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