Tube Screamer 470K instead of 510K resistors

mitzrecords · February 09, 2009, 10:21:49 PM

http://www.tonepad.com/getFile.asp?id=81

just a quick question. Can I replace 510K with 470K resistors? I don't have 510K and I went to local electronic store which is really far two days in a row and kept forgetting. im so dumb.....

thanx

PerroGrande · February 09, 2009, 10:25:23 PM

You're probably okay with 470K. You could also come close to a 510 with a 470K and a 47K in series.

mitzrecords · February 09, 2009, 10:33:27 PM

thank you. i also searched on forum with better key words and found lots of answers!

thanx

km-r · February 09, 2009, 10:41:54 PM

no significant difference when using 470k...

mitzrecords · February 10, 2009, 06:42:15 AM

thanx

also one more thing.

which one is better instead of 1uf NP?
1uf polyester film, 1uf tantalum, 1uf multilayer ceramic or 2 electro in series to get 1uf?

thanx!

R.G. · February 10, 2009, 07:09:14 AM

1uF polyester.

mitzrecords · February 10, 2009, 07:17:26 AM

cool
they all work though? i only have one polyester.

thanx

StereoKills · February 10, 2009, 07:22:58 AM

You can use the polyester or the ceramic, but not the tantalum or electro.

mitzrecords · February 10, 2009, 07:25:06 AM

thanx you.
ceramic and poly do they have a big sound difference?

StereoKills · February 10, 2009, 07:30:56 AM

The poly film is less noisy, but most likely you won't notice much of a difference. Certain areas of the circuit are more sensitive to noise so some people prefer to use higher grade caps and resisters there. I'm not sure what areas, still a new to the diy stompbox scene.

mitzrecords · February 10, 2009, 07:34:32 AM

i c. thanx evan. i guess i will go with ceramic since i have tons.

StereoKills · February 10, 2009, 09:07:30 AM

No problem. Personally I feel that something meant to have gain and noise such as a distortion works just fine with ceramic caps. If you were doing a project where you wanted crisp clean tones like a delay or what have you, poly film would be the way to go.

DougH · February 10, 2009, 11:30:13 AM

You're losin' the mojo, baby! Now put that 40k back in there and you'll feel better about yourself...

Just kidding.

mitzrecords · February 10, 2009, 02:09:14 PM

haha cool. thanx everyone.

slacker · February 10, 2009, 02:31:28 PM

If it helps you don't even need 1uF caps, anything over about 0.22uF should sound the same for the one before the clipping stage. For the one before the volume pot you can probably go even smaller.

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Tube Screamer 470K instead of 510K resistors