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Slow gear clone

Started by Matt, January 07, 2014, 05:27:53 AM

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Matt

My latest successful Oshpark board, a Boss Slow Gear clone.  The outside isn't anything great, I just reused an enclosure from a  Distortion+ clone that I had laying around. 

It's late so I didn't get to mess with it much yet, but I was getting some sweet sounds with a slide.  Can't wait until the weekend so I can really sit down and mess with it.

Also realized that that I mislabeled the "sens" knob as "sense."  Luckily it's just marker so it'll be an easy fix.
Matt

jkokura

That's a circuit I haven't messed with yet. Now it's on the todo list, as I'm learning slide these days.

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

irmcdermott

i've always wanted to build one of these.

Sibob

I had an original Slow Gear, which was cool, but didn't work great with Bass.
Sold it and bought a VB-2 instead ;)

In any case, is this a straight clone? orany changes?
Looks great! :)

Si

Matt

Quote from: Sibob on January 07, 2014, 03:06:39 PM
I had an original Slow Gear, which was cool, but didn't work great with Bass.
Sold it and bought a VB-2 instead ;)

In any case, is this a straight clone? orany changes?
Looks great! :)

Si

Just a straight forward clone, true bypass of course.

I might redo the enclosure sometime.  I really need to get a laser jet printer for labeling.  The ink jet I have prints poorly on adhesive film.
Matt

gtr2

I always wanted to do a project with the slow gear but BYOC already has a kit for it.

Really nice little design you did there!

Josh
1776 EFFECTS STORE     
Contract PCB designer

the3secondrule

Awesome! Any chance you'd be sharing the OSHpark project, or have a spare board up for grabs?

I'd definitely build this one :)
"I have many leatherbound books, and my apartment smells of rich mahogany"

Matt

#7
Quote from: gtr2 on January 08, 2014, 02:17:41 AM
I always wanted to do a project with the slow gear but BYOC already has a kit for it.

Really nice little design you did there!

Josh

Thanks!  Yeah, I wish they'd sell just the boards.  I would have bought this one from them.

Quote from: the3secondrule on January 08, 2014, 02:25:01 AM
Awesome! Any chance you'd be sharing the OSHpark project, or have a spare board up for grabs?

I'd definitely build this one :)

http://oshpark.com/profiles/dc10

Partlist

Exported from Slow Gear-125B.brd at 1/7/2014 10:08:20 PM


ATTACK 25kB
C1 47uf
C2 10uf
C3 47n
C4 22n
C5 22n
C6 10uf
C7 1n
C8 1uf
C9 1uf
C10 47n
C11 10uf
C12 1uf
C13 1uf
C14 33n
C15 47uf
C16 680n
C17 1uf
C18 1uf
D1-4 1N914
IC1 TL071P or 741
Q1-5 2N3904
Q6 2N5457
R1 22k
R2 22k
R3 1k
R4 220k
R5 10k
R6 470R
R7 220k
R8 1k
R9 1M
R10 390R
R11 390k
R12 4.7k
R13 4.7k
R14 100k
R15 100k
R16 10k
R17 22k
R18 470k
R19 1M
R20 3.3k
R21 47k
R22 1M

R23 1M
R24 10k
R25 1k
R26 100k
SENS. 100kA
T1 10kB
Z1 5.6v

Project shared.  I also have 2 boards if anyone is interested.
Matt

billstein

I'll take one of the boards.

the3secondrule

I'll take one if you'll post to New Zealand ;)
"I have many leatherbound books, and my apartment smells of rich mahogany"

Guitarmageddon

That's cool, thanks.
I've just ordered 3, so I'll have two spare if anyone wants one, preference given to Aussies and Kiwis. ;)
Spud knows tone!

Captain Cod at
www.codtone.com

Matt

#11
Just in case anyone needs it for troubleshooting.

Also, i haven't tried it yet but supposedly changing the value of C16 will adjust the attack.  The GGG schematic has a 470n for the stock value BYOC has a 680n.  Someone (i forget who) suggested putting a 1uf on a switch.
Matt

the3secondrule

Quote from: Guitarmageddon on January 08, 2014, 07:50:54 AM
That's cool, thanks.
I've just ordered 3, so I'll have two spare if anyone wants one, preference given to Aussies and Kiwis. ;)

Maybe I'll grab one off you instead, Oz is a little closer to home ;)

How much?
"I have many leatherbound books, and my apartment smells of rich mahogany"

Guitarmageddon

Works out at about $7.50 shipped.
I ordered 3, that's both spares spoken for. Pm me your postal deets 3sec.
Thanks for sharing Dc10!
Spud knows tone!

Captain Cod at
www.codtone.com

LaceSensor

very nice project there congrats