BLACKCAT OD (Freddie Fuzz)
- markm
- Diode Debunker
This circuit was known at one time as "Freddie Fuzz".
A Fred Bonte creation.
More OpAmp distortion here.
Here's a link for more info;
http://analogman.com/blackcat.htm
Layout
https://i17.photobucket.com/albums/b72/ ... LAYOUT.png
Transfer
https://i17.photobucket.com/albums/b72/ ... ANSFER.gif
A Fred Bonte creation.
More OpAmp distortion here.
Here's a link for more info;
http://analogman.com/blackcat.htm
Layout
https://i17.photobucket.com/albums/b72/ ... LAYOUT.png
Transfer
https://i17.photobucket.com/albums/b72/ ... ANSFER.gif
Last edited by markm on 07 Oct 2007, 12:11, edited 1 time in total.
Join together with the "Banned"!
- bajaman
- Old Solderhand
Information
- Posts: 4549
- Joined: 26 Jun 2007, 21:18
- Location: New Brighton, Christchurch, NZ
- Has thanked: 595 times
- Been thanked: 2056 times
Banned of Gypsies
bajaman
bajaman
- bajaman
- Old Solderhand
Information
- Posts: 4549
- Joined: 26 Jun 2007, 21:18
- Location: New Brighton, Christchurch, NZ
- Has thanked: 595 times
- Been thanked: 2056 times
Yeah - don't take things TOO seriously
Good to see you back again Mark - I wondered where you'd gone
bajaman
Good to see you back again Mark - I wondered where you'd gone
bajaman
I've built this one!
Not very found of IC distortion devices but this one sounded good and cleaned up well with the gtr knob (singles mostly).
The OP275 plays a big part too, it sounded really crapy (IMHO) with others like 4558 and TL072.
cheers
snail
Not very found of IC distortion devices but this one sounded good and cleaned up well with the gtr knob (singles mostly).
The OP275 plays a big part too, it sounded really crapy (IMHO) with others like 4558 and TL072.
cheers
snail
- markm
- Diode Debunker
Agreed.snail wrote:I've built this one!
Not very found of IC distortion devices but this one sounded good and cleaned up well with the gtr knob (singles mostly).
The OP275 plays a big part too, it sounded really crapy (IMHO) with others like 4558 and TL072.
cheers
snail
I'm no fan of OpAmp distortion either but, it seems to be one of the better sounding circuits of this type.
The OP275 seems to be required to make it sound decent.
Join together with the "Banned"!
- Paul Marossy
- Breadboard Brother
Information
The Black Cat OD-1 was the very first pedal I built. I wanted one because one of my guitar hereos, Scott Henderson, was using one (Freddie Fuzz) at the time. They weren't exactly available at the music store, so I decided that I was going to make my own. That's what got me started on this DIY oddysey.
- rhandy gaye
- Solder Soldier
Is it just me or has anyone else noticed a POSSIBLE mistake in the Black Cat Overdrive schematics and projects on the net. I've been looking at gut shots on the net and there is a 100k resistor stretched from pin 5 to 8 of the op amp and doesn't join up to the 100uf elec and diode. The elec and diode are separted by the 430 ohm resistor which comes from pin 8 (+9v).
- rhandy gaye
- Solder Soldier
- rhandy gaye
- Solder Soldier
- rhandy gaye
- Solder Soldier
They are of two different boards but, each picture is the best of both sets. The boards have identical trace connections but, ever so slightly different placements if you get my drift.
- rhandy gaye
- Solder Soldier
Here's a couple more pics.
- rhandy gaye
- Solder Soldier
Sorry here they are. You can see the gap under the 430 ohm res (with the other res on the same trace/pad for the led).
- Attachments
-
- tkob_g-img600x450-1242576991ngna7e42693.jpg (50.66 KiB) Viewed 2887 times
-
- blackcat_od1hifiltd7.jpg (30.06 KiB) Viewed 2887 times
- analogguru
- Old Solderhand
Information
Many of the "fuzzcentral-schematics" contain mistakes.
Most of them are NOT traced by Philip Bryant himself - in fact they were only redrawn by him.
This applies to the Black Cat - OD-1 too. Here is the original drawing which was made some time before Nov. 28, 2002 (the day when I saved it). Author is unknown.
analogguru
Most of them are NOT traced by Philip Bryant himself - in fact they were only redrawn by him.
This applies to the Black Cat - OD-1 too. Here is the original drawing which was made some time before Nov. 28, 2002 (the day when I saved it). Author is unknown.
analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.
- rhandy gaye
- Solder Soldier
Thanks heaps for the schematic, that's awesome. It's still got the POSSIBLE mistake so I'll just have to build both ways and see the results. I'll try do it asap.
- rhandy gaye
- Solder Soldier
I've found some more pics that point to me being right, too busy to post links now. I am so confident I'd bet my house on it.
Anyone who has built this, from the commonly found net schematics, has built it with this little mistake (which probably doesn't affect the sound one little bit).
Also the .1 cap values are possibly wrong or some models just had a different value.
Anyone who has built this, from the commonly found net schematics, has built it with this little mistake (which probably doesn't affect the sound one little bit).
Also the .1 cap values are possibly wrong or some models just had a different value.
- roseblood11
- Tube Twister
Can anybody please explain, what consequences that change would have?
I think the voltage divider would change from 4.5V to 4.49V? But does that make any difference?
I think the voltage divider would change from 4.5V to 4.49V? But does that make any difference?
- rhandy gaye
- Solder Soldier
ok, for the purists out there
i'm pretty confident that the mistakes on the black cat od-1 internet schematics are:
.1uf caps are .047uf
10uf electroluytic is 22uf electrolytic
and 100k resistor from Vbias joins to Vcc and 430 ohm resistor.
i have built it both ways, and both sound fine.
i'm pretty confident that the mistakes on the black cat od-1 internet schematics are:
.1uf caps are .047uf
10uf electroluytic is 22uf electrolytic
and 100k resistor from Vbias joins to Vcc and 430 ohm resistor.
i have built it both ways, and both sound fine.