Pete Cornish - Mystery Pedal [gooped][x-ray'd]
- Seiche
- Old Solderhand
so Aion posted two pictures of an "original design" cornish pedal, one a gooped gutshot and the madlad actually apparently x-rayed the PCB lol. Not anymore info though.
I wonder what it actually is. I can see one or two opamps and two transistors, as well as a trimpot.
- aion
- Solder Soldier
Information
I'll let you guys speculate for awhile... but tracing is complete on my end and a PCB (including schematic and more photos of the trace) will be released in about 2 months, so you won't have to wait long
It's very much an original circuit though. I was surprised since most of his are either value-tweaked clones or hybrids.
It's very much an original circuit though. I was surprised since most of his are either value-tweaked clones or hybrids.
- aion
- Solder Soldier
Information
The X-ray was a first pass at mapping out the circuit topology to see if it was even worth the effort to degoop. If it turned out to be a clone of something already known, or close (Cornish described it as original - but you know how that can go) then we might not have gone through the trouble to tear it apart further. But, it was indeed original so we persevered!Seiche wrote:How do you infer component values from an xray or gooped board? I assume you degooped it, or maybe took it apart and measured it?
- FeVeR2112
- Breadboard Brother
As it is a "new and original design".... I google searched the Cornish site and found these models that claim to be original:
BD-1
CC-1
OC-1
3Q-1
hmmmm.... which could this be then? oh... the suspense.
BD-1
CC-1
OC-1
3Q-1
hmmmm.... which could this be then? oh... the suspense.
- Seiche
- Old Solderhand
From the website:
BD-1 - Bass Driver
CC-1 - Crunch Pedal
OC-1 - Optical Compressor
3Q-1 - Active EQ with Linear Boost
What sounds most likely? The x-ray doesn't look like an optical compressor tbh, I don't see an optocoupler.
BD-1 - Bass Driver
CC-1 - Crunch Pedal
OC-1 - Optical Compressor
3Q-1 - Active EQ with Linear Boost
What sounds most likely? The x-ray doesn't look like an optical compressor tbh, I don't see an optocoupler.
- aion
- Solder Soldier
Information
Not yet, but soon. I'm doing up a PCB for it and will pull back the curtain on everything at once :)johnk wrote:no schematic yet?
- aion
- Solder Soldier
Information
Still on track, probably early October the way things are looking.
- aion
- Solder Soldier
Information
I don't mean to tease, the layout's just extremely tight and it's been kicking me in the pants the past month or so. I finally was able to hunker down and finish it though. An appetizer...johnk wrote:nothing yet?
Now shooting for the end of November for this, assuming prototyping goes well.
- aion
- Solder Soldier
Information
...And yes, there is an opto-isolator It was installed vertically on the PCB so it didn’t show up very clearly in the X-ray.
That probably narrows it down a bit!
That probably narrows it down a bit!