BBE - Boosta Grande


Black Arts - Quantum Mystic - Rev 3


Analogman - Sunface BC108


BBE - AM64


JHS Andy Timmons


JHS Angry Charlie V3


Band of Gypsys Fuzz Face


Dwarfcraft Shiva


ColorSound Tremolo


JHS Angry Charlie


Friedman BE-OD Pedal Layout


Simple CabSim ( Speaker Cabinet Simulator )


JHS Charlie Brown



Lovepedal Tchula


Joe Davisson Shocktave


Fred Briggs '64 Custom


Sagan Delay


Rivera Buf V

The circuit of the E945 is very simple with a single op-amp taking care of the buffing and boosting duties, while the loop is post-buffer/booster. The pedal works really well and the amount of ultra-clean boost is quite staggering with an internal symmetrical supply of +/-12 volts. This E945 is ideal with a twin channel Blackface/Silverface amp or with a two amp setup giving a pseudo 4 channel rig with one simple pedal. 
 

ZVEX SHO - new revised version


Split 'n Bend / Split and Bend


The Engineer's Thumb - Compressor


BOSS TR2 Tremolo TR-2


BOSS NF-1 Noise Gate



ICs, transistors and diodes used in the Boss NF-1 Noise Gate pedal:
  • IC1: uPC741C (operational amplifier IC)
  • D1: RD11EB (11V Zener diode)
  • D3, D3: RD4.7EB (4.7V Zener diode)
  • D4-D8: 1S1588 or 1S2473 (switching diodes)
  • Q1, Q2: 2SC732TM-GR (NPN silicon transistors)
  • Q3: 2SK30A-Y (N-channel JFET transistors)
  • Q4-Q9: 2SC1815-Y (NPN silicon transistors)
Adjustment procedure:

1) Set the Sens knob fully counterclockwise and the Decay knob fully clockwise.
2) Connect an oscilloscope to the effect's output through a millivoltmeter. Feed a 1kHz -45dBm sine signal to input.
3) Adjust VR3 and VR4 for the values shown in Fig.3.
 

Really Cheap Compressor


Parallel Universe - Colin Raffel


3 Transistor Fuzz - Gus Smalley



Emerson Custom Guitars - EM DRIVE / EM-DRIVE