Tools, Tones and Toys for Guitarists
Time to dust off the depletion mode MOSFETs in the bin. Here is a quite interesting design using four of these overlooked transistors. It is basically Plexi voiced a low to medium gain overdrive with a James tonestack. Each MOSFET have a3,3k resistors at its Source and according to the schematic these should be adjusted … Read more
A request by KG who also provided lots of useful information and a schematics for this. A bit more simple version of the DIYRE Tape Saturator circuit using op amps and there is no need for a rack circuitry. The circuit is supposed to run on 16v / -16v so there is an onboard bipolar … Read more
Another ENGL amp emulator and another schematic from a russian DIY forum using both J FETs and MOSFETs. It is worth socketing the diodes at the MOSFET transistors since these only add a bit compression to the distortion.
First version with external switches. the design itself is completely different from later versions with two cascaded Szisklai silicon / germaium pair transistor stages. Switches A and B adjust gain and Switch C adjust bias of the second transistor pair. The original had Dale resistors which explains the odd values but use closest common values. … Read more
This was a request. It is basically a stripped down Big Muff without external gain control, tone control and recovery stage. Decoupling caps is a bit bigger than most Big Muff variants and the clipping diodes is LEDs and Zener diodes.
Another Acapulco Gold variation, this time with a bandaxall tonestack between the gain stages and with a buffered clean blend….
Zzoyds modified Dirty Boots by Apocalypse Audio. An extra germanium pre amp stage has been added to convert it from an overdrive into a fuzz. MP38’s is fairly low gain NPN Ge so it can be subbed with 2N1302/2N1304, OC140, 104NU71 etc.
Another old circuit have been under the axe, Jordan Bosstone. An attempt to fatten things up a bit and use a bass gyrator control. Wanted to try out the setup that DOD used in 90’s and ended up with the tonestack from the infamous DOD FX69 Grunge…hence the name of the circuit. Not sure if … Read more
Last layout for a while. This is sort of a hack job, combining a Rat tuned for more low end with a LED/silicon diodes clipping switch. Then the signal is splitted into two signal paths using the Mid Scoop and Mid Boost tone sections from Boss FZ2. Signal is then fed into a treble cut … Read more
