Maxon - DS-830 , OD-880

Goop_buster · Post by **Goop_buster** » 26 Jul 2007, 12:15

Just found these during my endless search for a OD-820 schematic

May be old news but if not...I just wanted to share .

edit: see revised schem in gorins post below

The tone controls is perhaps a bit intersting?

Another schem. I found was (the not current production) Maxon OD-880. Schematic in this blog->

Maxon OD-880 schematic

Post by **modman** » 08 Aug 2007, 09:56

Also found this in AG's archive:

Maxon OD-880 drawn by AG

markm · Post by **markm** » 08 Aug 2007, 13:45

Layout for it here;
http://aronnelson.com/gallery/album76/M ... _XX_LAYOUT

Very different sounding OD.

gori · Post by **gori** » 07 Sep 2007, 19:45

Hello.
Nice to meet you.
The connection diagram of DS-830 which gorin wrote on September 30, 2006 is a mistake.
I am gorin.

The connection diagram which I corrected.

Inside image

I may misunderstand it.

I am sorry in strange English.

Goop_buster · Post by **Goop_buster** » 07 Sep 2007, 22:15

Thanks a lot gori

I removed the schematic with errors

Nikifena · Post by **Nikifena** » 25 May 2009, 21:04

Here are 2 pictures I made these days.
I mod this pedal to a true bypass.

tube-exorcist · Post by **tube-exorcist** » 26 May 2009, 00:11

schematic:
https://www.freestompboxes.org/viewtopic ... ilit=maxon

Nikifena · Post by **Nikifena** » 26 May 2009, 06:57

thanks

pinkjimiphoton · Post by **pinkjimiphoton** » 29 Sep 2012, 17:38

far out, this *MAY* be the same circuit as the coron d500...i will compare tomorrow!!

atreidesheir · Post by **atreidesheir** » 30 Jun 2013, 23:50

Jimi, what did you learn about this?

pinkjimiphoton · Post by **pinkjimiphoton** » 01 Jul 2013, 00:47

i gotta find it... theres boxes of pedals around here!!

atreidesheir · Post by **atreidesheir** » 01 Jul 2013, 00:54

You might be a Hoarder if....

Jimi I think your house would be a great place to spend a vacation. Bring a tele, an old champ, some good rocking chairs, and lots of those wonderful McDonald's gift certificates everyone receives for Christmas for us to share hot apple pies. and lots of solder

pinkjimiphoton · Post by **pinkjimiphoton** » 01 Jul 2013, 02:20

well, if you're ever gonna be in connecticut, look me up, and bring a doobie!!

i have a pretty huge pedal collection, gotta thin the herd some soon!!

atreidesheir · Post by **atreidesheir** » 01 Jul 2013, 05:34

It might pay for a vacation or too, I'll bet.
You throw away more good ideas than I build.

pinkjimiphoton · Post by **pinkjimiphoton** » 01 Jul 2013, 14:11

i've been lucky, only maybe 10 of the 100+ i've built haven't made it to being boxed.

REAL lucky!!

mirosol · Post by **mirosol** » 26 Jul 2014, 07:00

Here's my (already verified) stripboard layout for DS-830. It's per Gorin's schematic.

atreidesheir · Post by **atreidesheir** » 02 Aug 2014, 04:12

Thanks to tagboard bloggers.

screamingdemon · Post by **screamingdemon** » 14 Aug 2014, 13:47

I've got a question about that opamp jrc4558D It's hard to get here in holland.Is threre an alternitive for this one.and the 2SK256Y is difficult too.Can i put here something else in with the same specs.

grrrunge · Post by **grrrunge** » 14 Aug 2014, 15:46

screamingdemon wrote:I've got a question about that opamp jrc4558D It's hard to get here in holland.Is threre an alternitive for this one.and the 2SK256Y is difficult too.Can i put here something else in with the same specs.

tayda will get you 4558's for $0.16 a piece: http://www.taydaelectronics.com/catalog ... ?q=4558+op and their shipping to Europe is so cheap it's almost ridiculous.

The SK246 is a N-channel JFET, and is just used as an input buffer here, so any of the usual suspects (J201, 2N5457, 2N5458, BF245 etc.) would be a suitable replacement. Be sure to check the pinout before you solder it in though

Del Pedro · Post by **Del Pedro** » 11 Feb 2017, 18:02

gori wrote:Hello.
Nice to meet you.
The connection diagram of DS-830 which gorin wrote on September 30, 2006 is a mistake.
I am gorin.

The connection diagram which I corrected.
[ Image ]

Inside image
[ Image ]

I may misunderstand it.

I am sorry in strange English.

There is an error in this schematic. C03 must be 3n9 instead of 39n!