Akashic Guitar effects circuit lookup
SENSITIVITYBASS VOLUMEBRASS VOLUME

Enclosure not stated · 3 knobs

Experimentalists Anonymous

Bass Brassmaster BB1

Category
Bass· Fuzz and Fuzzy Noisemakers
Controls
Sensitivity · Bass Volume · Brass Volume
Price
see vendor
Tags
Fuzz and Fuzzy Noisemakers
Open the schematic at Experimentalists Anonymous

Schematic

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Parts list 60 rows

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Check before you build · 3 values the reader of this schematic was not sure of
  • Q: basing note reads 'All transistors except Q6 - 2N3392' and '2N5308 Q6'; read as Q6 = 2N5308, others 2N3392
  • SW3: three ganged contacts drawn, type read as 3PST
  • D1: bridge of four diodes drawn as one designator
RefValueNormalizedTypeNotes
Resistors 29
R1150K150kread from the schematic by eye
R2150K150kread from the schematic by eye
R312K12kread from the schematic by eye
R4390390read from the schematic by eye
R51.5M1.5Mread from the schematic by eye
R612K12kread from the schematic by eye
R7150150read from the schematic by eye
R82.2K2.2kread from the schematic by eye
R92.2K2.2kread from the schematic by eye
R1010K10kread from the schematic by eye
R11470K470kmarked R11* (select on test); read from the schematic by eye
R1210K10kread from the schematic by eye
R134.7K4.7kread from the schematic by eye
R14470470read from the schematic by eye
R1510K10kread from the schematic by eye
R16220K220kread from the schematic by eye
R17220K220kread from the schematic by eye
R182.2K2.2kread from the schematic by eye
R191K1kread from the schematic by eye
R2047K47kread from the schematic by eye
R211.5M1.5Mread from the schematic by eye
R2222K22kread from the schematic by eye
R2347K47kread from the schematic by eye
R2547K47kread from the schematic by eye
R263.3K3.3kread from the schematic by eye
R28150K150kread from the schematic by eye
R2982K82kread from the schematic by eye
R30820820read from the schematic by eye
×26.8K6.8kno designator; twin-T resistors switched in by SW3; read from the schematic by eye
Capacitors 17
C1.1uF100nread from the schematic by eye
C2.1uF100nread from the schematic by eye
C3.1uF100nread from the schematic by eye
C41uF1uelectrolytic; read from the schematic by eye
C51uF1uelectrolytic; read from the schematic by eye
C61uF1uelectrolytic; read from the schematic by eye
C71uF1uelectrolytic; read from the schematic by eye
C81uF1uelectrolytic; read from the schematic by eye
C9.005uF5nread from the schematic by eye
C10.005uF5nread from the schematic by eye
C12.05uF50nread from the schematic by eye
C13.1uF100nread from the schematic by eye
C14.01uF10nread from the schematic by eye
C15.05uF50nread from the schematic by eye
C1625uF25uelectrolytic; read from the schematic by eye
C1710uF10uelectrolytic; read from the schematic by eye
×1.01uF10nno designator; twin-T centre capacitor; read from the schematic by eye
Diodes 1
D1DiodeDIODEno part number given; four-diode bridge ring modulator; read from the schematic by eye
Transistors 7
Q12N33922N3392NPN; read from the schematic by eye
Q22N33922N3392NPN; read from the schematic by eye
Q32N33922N3392NPN; read from the schematic by eye
Q42N33922N3392NPN; read from the schematic by eye
Q52N33922N3392NPN; read from the schematic by eye
Q62N53082N5308NPN Darlington, filter amp; read from the schematic by eye
Q72N33922N3392NPN; read from the schematic by eye
Potentiometers 3
Sensitivity??PotentiometerVR1, no value drawn; read from the schematic by eye
Bass Volume10K10kPotentiometerVR2; read from the schematic by eye
Brass Volume10K10kPotentiometerVR3; read from the schematic by eye
Switches 2
SW2SPSTSPSTHarmonic switch Hi-Lo, switches R29 in; read from the schematic by eye
SW33PST3PSTBrass 1 / Brass 2, three ganged contacts in the twin-T filter; read from the schematic by eye
Other 1
T1??audio transformer, original specs unknown; sheet suggests a 10K CT to 10K CT audio transformer; read from the schematic by eye