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Old 12-17-2008, 11:29 PM   #1
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Wink How to measure the value of a 500k pot

HOW TO MEASURE THE VALUE OF A 500K POT

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Old 12-18-2008, 01:22 AM   #2
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Re: How to measure the value of a 500k pot

How can you be sure it's a 500k pot you're about to measure?
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Old 12-18-2008, 11:57 AM   #6
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Re: How to measure the value of a 500k pot

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Old 12-18-2008, 12:24 PM   #8
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Re: How to measure the value of a 500k pot

right... sometimes I'm surprised at what some people ask...
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Old 03-10-2009, 12:36 AM   #9
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Re: How to measure the value of a 500k pot

Since we are playing stupid question hour....

I just bought a batch of eight on the bay. Not a one reads 500k. How low below 500k is considered acceptable? +/- 10, 15, 20? I have the following ranges:

413k
422k
433k
435k
446k
464k
492k
494k
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Old 03-10-2009, 05:08 AM   #10
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Re: How to measure the value of a 500k pot

hmm so they're not really 500k's? never thought of that
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Old 03-10-2009, 06:27 AM   #11
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Re: How to measure the value of a 500k pot

Quote:
Originally Posted by Frails View Post
Since we are playing stupid question hour....

I just bought a batch of eight on the bay. Not a one reads 500k. How low below 500k is considered acceptable? +/- 10, 15, 20? I have the following ranges:

413k
422k
433k
435k
446k
464k
492k
494k

Well the reason I meter pots and check there values is so I can place them in the best spot when I build a harness. A lot of the time I will have much higher values 515K 524K 550K etc. Larger values got to neck volume, lower values (446K, 435K)are used for bridge value etc. Many theories and a lot of discussion on this topic and I just don't feel like getting into it right now.
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Old 03-10-2009, 06:32 AM   #12
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Re: How to measure the value of a 500k pot

Quote:
Originally Posted by Frails View Post
Since we are playing stupid question hour....

I just bought a batch of eight on the bay. Not a one reads 500k. How low below 500k is considered acceptable? +/- 10, 15, 20? I have the following ranges:

413k
422k
433k
435k
446k
464k
492k
494k
Quote:
Originally Posted by Zoshquin View Post
hmm so they're not really 500k's? never thought of that
Now you see why Quality Control is so important. All of those wouldn't meet our tolerance.

RS meters every pot that goes into the kits, so none of the above-listed nonsense happens---anything below our tolerance is weeded out. We might take that 494K pot if someone wanted 'lower-range' pots, but the rest hit the bin...
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Old 03-10-2009, 07:27 AM   #13
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Wink Re: How to measure the value of a 500k pot

Quote:
Originally Posted by hillbilly View Post
Now you see why Quality Control is so important. All of those wouldn't meet our tolerance.

RS meters every pot that goes into the kits, so none of the above-listed nonsense happens---anything below our tolerance is weeded out. We might take that 494K pot if someone wanted 'lower-range' pots, but the rest hit the bin...
Don't give me that quality control BS HIllbilly, I have heard lot's of complaints about RS pots from many people, and it is usually about the way they taper off.

Gibson, since the 1950's has always randomly used parts in all their guitars, never bothering to meter Pots or caps etc. and many are considered the "HOLY GRAIL" of Tone.

Just because your pots read right on 500K does not mean your guitar will sound good. A 550K in the neck may sound less muddy and more open, and a 450K in the bridge may add a little more compression and sound a little sweeter, that is why some guys use 300K's in their LP's.

Say what you want, but IMHO There is an art to building the right harness for a certain guitar & pu's
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Old 03-10-2009, 08:04 AM   #14
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Re: How to measure the value of a 500k pot

This is nice to know. I was actually just wondering about this. I might of figured it out by playing around with my multimeter, but I don't have pots laying around to mess with.
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Old 03-10-2009, 08:11 AM   #15
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Re: How to measure the value of a 500k pot

Quote:
Originally Posted by jonesy View Post
Don't give me that quality control BS HIllbilly, I have heard lot's of complaints about RS pots from many people, and it is usually about the way they taper off.

Gibson, since the 1950's has always randomly used parts in all their guitars, never bothering to meter Pots or caps etc. and many are considered the "HOLY GRAIL" of Tone.

Just because your pots read right on 500K does not mean your guitar will sound good. A 550K in the neck may sound less muddy and more open, and a 450K in the bridge may add a little more compression and sound a little sweeter, that is why some guys use 300K's in their LP's.

Say what you want, but IMHO There is an art to building the right harness for a certain guitar & pu's
hmm so higher is better for neck and lower is better for bridge?
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Old 03-10-2009, 08:16 AM   #17
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Re: How to measure the value of a 500k pot

Quote:
Originally Posted by jonesy View Post
That is just my opinion on this subject, but I am sure there are others that will disagree
since I don't know much about this and I trust you, I'd remember your opinion I'm getting into this thing
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Old 03-10-2009, 08:26 AM   #18
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Wink Re: How to measure the value of a 500k pot

Quote:
Originally Posted by Zoshquin View Post
hmm so higher is better for neck and lower is better for bridge?
As a general rule yes, but it really depends a lot on the out put of the pu itself.
Vintage PAF's maybe range 7.2K-8.5K normally the Hotter pu would go in bridge and lower out put would go in neck to balance volume level. But when Gibson was building them back in the 50's n 60's they just pulled them out of a bin and installed them randomly, resulting in some guitars sounding a certain way. Maybe the hot pu ended up in the neck and sounded Killer?

The Neck pu can sound darker, so a lower value pot would not allow to be as open and have as much gain as a 550K. But if for some reason you have a Bright sounding guitar where even neck pu was bright and bitey, a 450K Pot may sound excellent? Burstbuckers, or the Pro's sound different than the Classic 57's or 498T etc. Each guitar has it's own sound because of the wood. What sound great in a n LP may sound different in an SG.

So if you say every Pot is exactly 500K and this is what will make your guitar sound great, well I just don't think that is accurate or fair. I look at what I do as more of an art than a science even thought there is science involved in even the most basic electronics. I use my meter as a guide to help me make better choices and build better rigs.
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Old 03-10-2009, 08:29 AM   #19
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Wink Re: How to measure the value of a 500k pot

Quote:
Originally Posted by Zoshquin View Post
since I don't know much about this and I trust you, I'd remember your opinion I'm getting into this thing
Hey bro, take what I say with a grain of Salt cause it sure ain't the Gospel.
I am just letting you know how I think about things and I have spent lot's of hours both researching on line and tinkering first hand.

You have to find what is going to work the best for you by learning all you can from everyone, and then using it to do your own thing with wiring
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Old 03-10-2009, 08:35 AM   #20
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Re: How to measure the value of a 500k pot

Quote:
Originally Posted by jonesy View Post
Hey bro, take what I say with a grain of Salt cause it sure ain't the Gospel.
I am just letting you know how I think about things and I have spent lot's of hours both researching on line and tinkering first hand.

You have to find what is going to work the best for you by learning all you can from everyone, and then using it to do your own thing with wiring
hmm yeah I'm learning alot from you...

sometime soon I'll save up so I can buy the resources then solder the heaven out of my wiring I won't stop tinkering till my guitar sounds like an angel singing sounds like a plan
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Old 03-10-2009, 08:45 AM   #21
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Re: How to measure the value of a 500k pot

Quote:
Originally Posted by jonesy View Post
Hey bro, take what I say with a grain of Salt cause it sure ain't the Gospel....
Right on, Jonesy! Interesting stuff here.
I'll be doing some soldering in my Esquire soon. May be contacting you in the future.
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Old 03-10-2009, 12:03 PM   #23
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Re: How to measure the value of a 500k pot

Good stuff Jonesy, thank you. I guess knowing that the following PUPs have the listed output, which (if any) of the pots would you recommend I use as replacements?

Orville LP w/ Gibson USA's (?)
Gibson LP w/ SD SH-1 '59 neck (7.43k), bridge SH-5 Duncan Custom (14.1k)
Vintage LP w/ Alnico II Pro neck (7.6k), bridge (7.85k)
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Old 03-10-2009, 12:12 PM   #24
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Re: How to measure the value of a 500k pot

And BTW, I'm not trying to take advantage of you and make you my personal tech, I'm just trying not to reinvent the wheel (want to learn). Thanks in advance.
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Old 03-10-2009, 12:57 PM   #25
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Wink Re: How to measure the value of a 500k pot

Quote:
Originally Posted by Frails View Post
And BTW, I'm not trying to take advantage of you and make you my personal tech, I'm just trying not to reinvent the wheel (want to learn). Thanks in advance.
No problem bro, I didn't start this thread to try and sell Pots, or Caps or whatever, it was an informational thread to show how to measure a Pot(any brand). I expected to get a few questions, so it's all good.

IMO All pickups would work fine with 500K pots....but the vintage 7.0K-ish pu's could use a 300K in bridge volume but I usually use the 500k's myself. You could even use a 1 Meg volume for that Duncan that runs 14.1K, it may be a little muddy with 500k, or maybe not? The 1 Meg would allow the most clarity and openness out of that pu. Fender suggests 1 Meg Pots with all their Vintage Noiseless pu's for that same reason.

peace, jonesy
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Old 03-10-2009, 01:03 PM   #26
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Re: How to measure the value of a 500k pot

other pot info...
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Old 03-10-2009, 01:18 PM   #27
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Re: How to measure the value of a 500k pot

Crikey!
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Old 03-10-2009, 01:29 PM   #28
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Re: How to measure the value of a 500k pot

Thanks Jonesy!
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Old 03-10-2009, 01:53 PM   #30
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Re: How to measure the value of a 500k pot

Yes I'm using CTS 250k in all of my Strats regardless of PUP. I guess I just never thought about taking a reading and matching them up.

I'm using CS '54's in the Gilmour Strat, B&R Vintage Blues '63's in the '62 Sonic Blue Strat, CS '68's in the '65 Dakota Red Strat, some other vintage that slips my mind at the moment in the '57 Sunburst Strat and EMG SA's in my other Sonic Blue Strat.

BTW, anyone want to buy a Strat?
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