Found a small article on AMZ about some patented tube emulation circuit used in Crate amps. Jack Orman put together a simple effect schematic based
Category: Distortion
![](https://www.sabrotone.com/wp-content/uploads/2012/03/Mercury.gif)
I’ve had more than a few requests for this effect lately so it shouldn’t take long to either verify this or point out there’s something
![](https://www.sabrotone.com/wp-content/uploads/2011/11/ModernSLO100.gif)
There’s been a few requests for this preamp circuit and I finally got around to it. I based this on a schematic I’m not really
![](https://www.sabrotone.com/wp-content/uploads/2011/11/BBPreamp.gif)
A lot of people seem to want a vero of this effect. Someone also requested a dual switch version, but I haven’t found much info
![](https://www.sabrotone.com/wp-content/uploads/2011/11/Pharaoh.gif)
Threw this together today. Hope it works. Update (22.11.2011): Now verified, thanks to Luka.
![](https://www.sabrotone.com/wp-content/uploads/2011/11/CrazyHorse.gif)
I know very little about this effect. Let me know if the layout works out. Update (28.12.2011): Built this one tonight just to see whether
![](https://www.sabrotone.com/wp-content/uploads/2012/10/PlexiDrive.gif)
Seems a lot of people are asking for a layout of this effect. Update (27.10.2011): Now verified thanks to Glenn. That was fast! Update (09.10.2012):
![](https://www.sabrotone.com/wp-content/uploads/2011/10/BSiaB2.gif)
Vero layout for the BSiaB2. This is, as far as I understand, supposed to give a Marshall sound. Update (03.12.2011): Now verified thanks to MikeT.
![JCM800 vero layout](https://www.sabrotone.com/wp-content/uploads/2010/04/JCM800-Emulator-vero.gif)
Vero layout of the Marshall JCM-800 preamp emulator.
![Dr. Boogey vero layout](https://www.sabrotone.com/wp-content/uploads/2010/04/DrBoogey.gif)
Here’s a vero layout for the preamp emulator of the Mesa Boogie Dual Rectifier.