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Dirt Bag Parts?

Started by tenwatt, November 01, 2011, 05:59:05 PM

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gtr2

#30
Tayda has greenies...and cheap shipping.

http://www.taydaelectronics.com/servlet/StoreFront
1776 EFFECTS STORE     
Contract PCB designer

tenwatt

#31
Are these good for the 27pF, 120pF, 150pF, and 240pF?  Also, my trimpots are about 1/4" and don't fit between the resistors.  Is there a better/smaller option.  I'm using the Cermet's from Smallbear.
Not too bright....

Scruffie

Quote from: tenwatt on November 28, 2011, 04:22:50 PM
Are these good for the 27pF, 120pF, 150pF, and 240pF?  Also, my trimpots are about 1/4" and don't fit between the resistors.  Is there a better/smaller option.  I'm using the Cermet's from Smallbear.
Are what good?

But if they're caps then yeah... they're good. Ceramics, Film, Silver mica, just depends how much you want to spend.

The trimpot, I think the boards are sized for the Bourn 3362 type, Tayda have them - http://www.taydaelectronics.com/servlet/the-Potentiometer--fdsh--Variable-Resistors-cln-Cermet-Potentiometers-cln-3362P/Categories
Works at Lectric-FX

tenwatt

#33
Crap...I forgot to post the link:

http://www.mouser.com/Search/ProductDetail.aspx?R=C317C270J5G5TAvirtualkey64600000virtualkey80-C317C270J5G

Also...those trimmers are exactly what I have.  They don't fit between the resistors in some spots.  The pins line up perfect they just don't lay flat on the board.  I'm being anal.
Not too bright....

jkokura

The Cermets from Smallbear are 3/8" not 1/4". The 1/4" are available from Mouser or ebay. Bourns is a popular type.

Jacob
JMK Pedals - Custom Pedal Creations
JMK PCBs *New Website*
pedal company - youtube - facebook - Used Pedals

Scruffie

Quote from: tenwatt on November 28, 2011, 04:49:41 PM
Crap...I forgot to post the link:

http://www.mouser.com/Search/ProductDetail.aspx?R=C317C270J5G5TAvirtualkey64600000virtualkey80-C317C270J5G

Also...those trimmers are exactly what I have.  They don't fit between the resistors in some spots.  The pins line up perfect they just don't lay flat on the board.  I'm being anal.
Look good, 5% tollerance, should be perfect.

Quote from: jkokura on November 28, 2011, 04:52:44 PM
The Cermets from Smallbear are 3/8" not 1/4". The 1/4" are available from Mouser or ebay. Bourns is a popular type.

Jacob
Well whatd'ya know, are the Tayda ones suitable? Can't see a mention of size.
Works at Lectric-FX

LaceSensor

Quote from: Scruffie on November 28, 2011, 05:06:37 PM
Quote from: tenwatt on November 28, 2011, 04:49:41 PM
Crap...I forgot to post the link:

http://www.mouser.com/Search/ProductDetail.aspx?R=C317C270J5G5TAvirtualkey64600000virtualkey80-C317C270J5G

Also...those trimmers are exactly what I have.  They don't fit between the resistors in some spots.  The pins line up perfect they just don't lay flat on the board.  I'm being anal.
Look good, 5% tollerance, should be perfect.

Quote from: jkokura on November 28, 2011, 04:52:44 PM
The Cermets from Smallbear are 3/8" not 1/4". The 1/4" are available from Mouser or ebay. Bourns is a popular type.

Jacob
Well whatd'ya know, are the Tayda ones suitable? Can't see a mention of size.

Tayda are 3362 so yeah they be the perfect peice.

tenwatt

Didn't I read somewhere that the #1 pin on one of the ICs or BBDs had to be clipped off or something?  I can't find that in the build doc.  Am I imagining things?
Not too bright....

bigmufffuzzwizz

Quote from: tenwatt on November 29, 2011, 09:15:31 PM
Didn't I read somewhere that the #1 pin on one of the ICs or BBDs had to be clipped off or something?  I can't find that in the build doc.  Am I imagining things?

I believe that's true for the LT1054 charge pump chip. IIRC, there's some info in the new Road Rage doc.
Owner and operator of Magic Pedals

tenwatt

Ahhhh, yes.  That's what I'm remembering.  Thanx!
Not too bright....

dwstanford

Yeah, thats on the charge pump if you use e lt1054.  Dont clip the first pin off your 3005's.   ;D

jubal81

Quote from: dwstanford on November 30, 2011, 01:25:18 AM
Yeah, thats on the charge pump if you use e lt1054.  Dont clip the first pin off your 3005's.   ;D

Holy crap. I literally winced when I read that.
"If you put all the knobs on your amplifier on 10 you can get a much higher reaction-to-effort ratio with an electric guitar than you can with an acoustic."
- David Fair

bigmufffuzzwizz

Quote from: jubal81 on November 30, 2011, 04:01:38 AM
Quote from: dwstanford on November 30, 2011, 01:25:18 AM
Yeah, thats on the charge pump if you use e lt1054.  Dont clip the first pin off your 3005's.   ;D

Holy crap. I literally winced when I read that.

Yea i really held my breath...
Owner and operator of Magic Pedals

LaceSensor

Pro tip - dont cut pins off of ICs (!)
You might need them to troubleshoot another project which requires all pins intact, and on a rarer or more expensive / hard to source IC, I wouldnt risk mutilating it

The solution is to take a second IC socket, and remove the correlating pin from that, then insert the IC into the "trimmed" socket, then plug that into the second socket soldered on your board.

HOpe that makes sense


tenwatt

Quote from: dwstanford on November 30, 2011, 01:25:18 AMDont clip the first pin off your 3005's.   ;D
No.  I wouldn't have.  I would have modded my socket.
Not too bright....