Tools, Tones and Toys for Guitarists
Got a request for this one, it’s a good addition to the collection. It’s Ibanez’s take on the RAT in their Power Series from the mid-late 80s. It’s very similar to the LM7 LA Metal circuit, with just a few value changes and omissions (detailed below). I removed the FET switching and output buffer to … Read more
Here’s another one from Basic Audio for Fuzz Friday. This is John’s take on the Wem Pep Box and adds variable output cap control with the Body control. Should be an easy fit in a 1590B. Here’s the schematic for reference. Alternatives to the BC107B would be other lower gain transistors like the BC547B, 2N2222A, … Read more
A tweakable cabinet simulator for both guitar and bass. Original FSB thread and still unverified schematic available here. .
Here’s the .45 Caliber overdrive from J. Rockett Audio Designs. It’s essentially a simplified Timmy without the second opamp stage, and claims to emulate the sound and feel of a 1962 JTM 45. Easy fit in a 1590B with board mounted pots. Edit: Schematic for reference
Here’s a nice utility box for home recording or even live application (if you’ve run into a sound guy who hates guitar amps 😠). It’s a direct box but also a cab sim (4×12). It won’t run off phantom power, so just power it with a 9v wall wart or a battery. Also, connected to … Read more
Here’s Baja’s AC30 Normal Channel emulator. Throw a treble booster in front of this and you’re pretty darn close to nailing some Brian May tones. Schematic and discussion here on FSB.
The Marshall 3005 Lead 12 was a mini-stack with a 12 watt solid state head made in England between 1988 and 1991. People claim it’s a great amp and can get vintage Marshall sounds from it, and that it takes overdrives really well. One note in the amp the preamp was powered by +16V/-16V so … Read more
For Fuzz Friday, here’s the D*A*M Buzzotron with a few modifications (based on H.A.’s suggestions).The Buzzotron is a tweaked Burns Buzzaround, which can also be built on this layout. What I’ve added is a master volume control and a ICL7660-based voltage inverter. This allows you to power the effect with a standard +9v supply and … Read more
Another one of Bajaman’s many amp emulator circuits. It emulates the frequency response of the classic Vox AC30 top boost channel, including power amplifier emulation. It’s designed to fit in a 125B with top mounted jacks. Schematic and discussion on FSB here. The input buffer stage uses a 2SK117 JFET with DGS pinout, but I’ve … Read more
