Ibanez - OD-850 Overdrive  [schematic]

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Postby JHS » 24 Jan 2008, 20:24

Just another BM copy made by Maxon with I/O-buffers and silent FET-switching.

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  [schematic]

Postby Dirk_Hendrik » 24 Jan 2008, 21:37

Jaysus

Don't you guys study anything!!??

The OD850 is identical to the OD9 as a successor and a Big muff variation on itself

Service junk can be found here (among other places) where it has been over the last 2 friggin' years: :roll: :roll:
http://www.dirk-hendrik.com/images/OD850_schem.gif
http://www.dirk-hendrik.com/images/OD850_man.gif
Sorry. Plain out of planes.

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Postby Dirk_Hendrik » 24 Jan 2008, 21:38

JHS wrote:Just another BM copy made by Maxon with I/O-buffers and silent FET-switching.

JHS


Exactly.
Thanks! :wink:
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Postby MoreCowbell » 24 Jan 2008, 23:15

Dirk_Hendrik wrote:Jaysus

Don't you guys study anything!!??


Yee _______ haw ! Did I EVER ask what it was ? No. I simply posted gut shots.

you act like posting gut shots, something which is done with extreme regularity, is a BAD thing !

You better go ridicule everyone who posted pictures of EH Muff Fuzzes, MXR pedals, etc, etc...as we KNOW what all those are...

Next time you get ______ bored with the gut shots that somebody goes to the effort of posting....don't ______ look...or at least don't waste your precious time by commenting.

PS: Have a nice day ! :lol: :roll:
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Postby Dirk_Hendrik » 25 Jan 2008, 09:42

Sorry, bad mood yesterday.
Sorry. Plain out of planes.

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Postby MoreCowbell » 25 Jan 2008, 14:27

Dirk_Hendrik wrote:Sorry, bad mood yesterday.


It happens to all of us.

No problem. I have the flu right now, so I'm a bit "trigger happy" as well.
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Postby Professor SourTone » 25 Jan 2008, 17:27

Dirk_Hendrik wrote:Jaysus

Don't you guys study anything!!??

The OD850 is identical to the OD9 as a successor and a Big muff variation on itself

Service junk can be found here (among other places) where it has been over the last 2 friggin' years: :roll: :roll:
http://www.dirk-hendrik.com/images/OD850_schem.gif
http://www.dirk-hendrik.com/images/OD850_man.gif


I have an OD850 and an OD9 and they look nearly identical inside.
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Postby Dirk_Hendrik » 25 Jan 2008, 18:21

Professor SourTone wrote:
Dirk_Hendrik wrote:Jaysus

Don't you guys study anything!!??

The OD850 is identical to the OD9 as a successor and a Big muff variation on itself

Service junk can be found here (among other places) where it has been over the last 2 friggin' years: :roll: :roll:
http://www.dirk-hendrik.com/images/OD850_schem.gif
http://www.dirk-hendrik.com/images/OD850_man.gif


I have an OD850 and an OD9 and they look nearly identical inside.


They are. I've got a few suspicions but was (and probably will never be) able to get em for a fact. I wrote that stuff here:
http://www.dirk-hendrik.com/ibanez.html ... ive%20OD-9

Scroll down to the OD9 part ;)
And I am interested in the results of your verification. Other than that, the fact that you do own a OD9 makes you a lucky man already!

Andrew,
Thanks! Take it easy and get well soon ;)
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Postby MoreCowbell » 25 Jan 2008, 22:43

Dirk_Hendrik wrote:Andrew,
Thanks! Take it easy and get well soon ;)


Thanks..I'm feeling a bit better today....

have a good weekend !
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Confused about Ibanez OD-850 versions.

Postby The Rotagilla » 17 Nov 2008, 21:58

There's this one which I believe is the first -

Image

The second?

Image

The third?

Image

I think AG's OD-850 corresponds to the first version and then I have another OD-850 schematic that looks factory. Are 2 and 3 the same internally? Any insight would be greatly appreciated.
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Re: Ibanez - OD-850 ( Overdrive )

Postby analogguru » 17 Nov 2008, 23:32

My schematic is for the version 1.
The factory schematic is for version 3.
The only information I have for version 2 are the bad pictures below.

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Re: Ibanez - OD-850 ( Overdrive )

Postby The Rotagilla » 17 Nov 2008, 23:45

Thanks for the info (and moving my post. :oops:).
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Re: Ibanez - OD-850 ( Overdrive )

Postby The Rotagilla » 18 Nov 2008, 17:01

I spent yesterday afternoon scouring the 'net for OD-850's. The easiest and most common found was the first version. I found one second version for $650 and a few third versions that were sold but still listed on the host site. Matsumin has a DIY 3rd version that can be found here if anyone is interested.

After reading Dirk's article I searched for OD-9's but came up empty handed.
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Re: Ibanez - OD-850 ( Overdrive )

Postby Dirk_Hendrik » 18 Nov 2008, 17:57

The Rotagilla wrote:I spent yesterday afternoon scouring the 'net for OD-850's. The easiest and most common found was the first version. I found one second version for $650 and a few third versions that were sold but still listed on the host site. Matsumin has a DIY 3rd version that can be found here if anyone is interested.

After reading Dirk's article I searched for OD-9's but came up empty handed.



Why doing a DIY project to build a big muff and then calling it a OD850?
Easier is to score a good old SF5 or FZ5 Ibanez Sixties Fuzz and convert it to "OD850 specs". That's about one hour's work.

And indeed, scoring a OD9 for an affordable price... is nearly impossible. I have a full OD9/OD850 PCB layout rework ready which I can post tomorrow. Score a TS and replace the guts.
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Re: Ibanez - OD-850 ( Overdrive )

Postby The Rotagilla » 20 Nov 2008, 15:30

Zoiks! Too rich for my blood - Ibanez OD-9
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Re: Ibanez - OD-850 ( Overdrive )

Postby The Rotagilla » 14 Dec 2008, 05:39

I got a chance today to play an OD-850 side by side with an OD-9. To my ears the difference were so minimal that I wouldn't seek out an OD-9 unless I had a nine series fetish and had to fill the spot. Both were essentially Big Muffs that were slightly more controlled sounding. I actually preferred the OD-850 as it seemed to tighten up slightly better at lower gain settings and seemed to cover fuzz as well as Muff sounds if that makes any sense. Sadly, no mojo to be found.
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