Akashic Guitar effects circuit lookup
DRIVETONELEVEL

Enclosure not stated · 3 knobs

Revolution Deux

Rockbox Boiling Point

Based on the Rockbox Boiling Point· 2 other boards clone it

Category
Overdrive
Controls
Drive · Tone · Level
Price
see vendor
Also as
Vero layout · from Revolution Deux
Tags
freestompboxes.org trace
Read the post at Revolution Deux Schematic imagefreestompboxes.org thread Vero layout

From the vendor

A $350 boutique overdrive that the freestompboxes forum found to be a Tube Screamer 808 clone with a few mods: MPSA18 input and output buffers, a 4558 gain stage with a detented A1M Drive pot, a clipping switch choosing between LED clipping and pairs of 1N4148s, and a bass switch that changes the cap in the gain stage's ground leg.

Schematic

The schematic is in the post. Open it at Revolution Deux. No KiCad fragment has been drawn for this circuit yet.

Parts list 51 rows

Report a wrong parse

Got parts in a drawer? See what you can build with them.

Check before you build · 1 value the reader of this schematic was not sure of
  • The values of C3 and C14 overlap on the drawing ('.47uF' and '22uF'); read as 470n and 220n, as the verified vero lists them.
RefValueNormalizedTypeNotes
Resistors 18
R184.99M4.99Mread from the schematic by eye
R11K1kread from the schematic by eye
R2620K620kread from the schematic by eye
R310K10kread from the schematic by eye
R410K10kread from the schematic by eye
R51K1kread from the schematic by eye
R610K10kread from the schematic by eye
R71K1kread from the schematic by eye
R810K10kread from the schematic by eye
R9220220read from the schematic by eye
R101K1kread from the schematic by eye
R111K1kread from the schematic by eye
R12510K510kread from the schematic by eye
R1310K10kread from the schematic by eye
R14100100read from the schematic by eye
R1510K10kread from the schematic by eye
R1610K10kbias divider; read from the schematic by eye
R1710K10kbias divider; read from the schematic by eye
Capacitors 18
C122n22ninput; read from the schematic by eye
C13100n100nread from the schematic by eye
C21u1ufilm, WIMA MKS4; read from the schematic by eye
C15100n100nread from the schematic by eye
C3470n470nbass switch; read from the schematic by eye
C14220n220nbass switch; read from the schematic by eye
C451p51pread from the schematic by eye
C5150n150nread from the schematic by eye
C6150n150nread from the schematic by eye
C71u1ufilm, WIMA MKS4; read from the schematic by eye
C8100n100nread from the schematic by eye
C12100n100nread from the schematic by eye
C910u10utantalum; read from the schematic by eye
C10100u100uelectrolytic; read from the schematic by eye
C16100n100nread from the schematic by eye
C18100n100nread from the schematic by eye
C1147u47uelectrolytic; read from the schematic by eye
C17100n100nread from the schematic by eye
Diodes 5
D11N41481N4148read from the schematic by eye
D21N41481N4148read from the schematic by eye
D31N41481N4148read from the schematic by eye
D41N41481N4148read from the schematic by eye
D71N40041N4004supply protection; read from the schematic by eye
Transistors 2
Q1MPSA18MPSA18Fairchild; read from the schematic by eye
Q2MPSA18MPSA18Fairchild; read from the schematic by eye
ICs 1
IC1RC4558PRC4558PTI; read from the schematic by eye
Potentiometers 3
DriveA1MA1MPotentiometerdetented; read from the schematic by eye
ToneB2KB2kPotentiometerread from the schematic by eye
LevelB100KB100kPotentiometerread from the schematic by eye
Switches 2
BassSPDTSPDTSW1, on-on; read from the schematic by eye
ClipSPDTSPDTSW2, on-off-on; read from the schematic by eye
LEDs 2
D5LEDLED5mm, clipping; read from the schematic by eye
D6LEDLED5mm, clipping; read from the schematic by eye

Other boards based on the Rockbox Boiling Point