Akashic Guitar effects circuit lookup
GLIDEATTACKSUSTAINDECAYFOOT LOUDNESSVOLUMEFILTER ATTACKFILTER CONTOUR AMOUNTFILTER DECAYFILTER CUT OFFFOOT FILTERREGENOSC B TUNEBEAT RATEA-B MIX

Enclosure not stated · 15 knobs

Experimentalists Anonymous

Moog Taurus

Category
Ring Mod / Synth· Full Synths Drum Synths and Misc Synth
Controls
Glide · Attack · Sustain · Decay · Foot Loudness · Volume · Filter Attack · Filter Contour Amount · Filter Decay · Filter Cut Off · Foot Filter · Regen · Osc B Tune · Beat Rate · A-B Mix
Price
see vendor
Tags
Full Synths Drum Synths and Misc Synth
Open the schematic at Experimentalists Anonymous

Schematic

The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.

Parts list 326 rows

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Check before you build · 6 values the reader of this schematic was not sure of
  • R204, R206, R208, R409: marked * not on board, no value printed
  • R529: drawn 50KRA in the IC503 regen switching; may be a panel pot rather than a trimmer
  • Sustain (R202), Filter Contour Amount (R403): drawn as pots with panel labels, values small (1K) but read clearly
  • C305: 500pF, could be 300pF
  • IC105: resistor values of the divider network R118-R130 not shown
  • R903: label partly hidden by the switch wiring
RefValueNormalizedTypeNotes
Resistors 162
R1011K1kin resistor network IC101; read from the schematic by eye
R1021K1kin resistor network IC101; read from the schematic by eye
R1031K1kin resistor network IC101; read from the schematic by eye
R1041K1kin resistor network IC101; read from the schematic by eye
R1051K1kin resistor network IC101; read from the schematic by eye
R1061K1kin resistor network IC101; read from the schematic by eye
R1071K1kin resistor network IC101; read from the schematic by eye
R1081K1kin resistor network IC101; read from the schematic by eye
R1091K1kin resistor network IC102; read from the schematic by eye
R1101K1kin resistor network IC102; read from the schematic by eye
R1111K1kin resistor network IC102; read from the schematic by eye
R1121K1kin resistor network IC102; read from the schematic by eye
R1131K1kin resistor network IC102; read from the schematic by eye
R1141K1kin resistor network IC102; read from the schematic by eye
R1151K1kin resistor network IC102; read from the schematic by eye
R116270K270kread from the schematic by eye
R117100K100knote 12: replace with 47K if trigger is intermittent; read from the schematic by eye
R1321K1kread from the schematic by eye
R1335.1M5.1Mread from the schematic by eye
R13422K22kread from the schematic by eye
R13510K10kread from the schematic by eye
R1364.7K4.7kread from the schematic by eye
R1375.6K5.6kread from the schematic by eye
R13827K27kread from the schematic by eye
R139220K220kread from the schematic by eye
R1402.2M2.2Mread from the schematic by eye
R141100K100kread from the schematic by eye
R1434747read from the schematic by eye
R14456K56kread from the schematic by eye
R14556K56kread from the schematic by eye
R14747.5K47.5kmetal film; read from the schematic by eye
R148220K220kread from the schematic by eye
R14915K15kmetal film; read from the schematic by eye
R15110K10kread from the schematic by eye
R1524747read from the schematic by eye
R20322K22kread from the schematic by eye
R204??marked * not on board, no value given; read from the schematic by eye
R2054747read from the schematic by eye
R206??marked * not on board, no value given; read from the schematic by eye
R2074747read from the schematic by eye
R208??marked * not on board, no value given; read from the schematic by eye
R210300K300kread from the schematic by eye
R21115K15kread from the schematic by eye
R21243K43kread from the schematic by eye
R21310K10kread from the schematic by eye
R2141K1kread from the schematic by eye
R2151K1kread from the schematic by eye
R21610K10kread from the schematic by eye
R30115K15kread from the schematic by eye
R30433K33kread from the schematic by eye
R3052.2M2.2Mread from the schematic by eye
R3062.2K2.2kread from the schematic by eye
R3072.2K2.2ka VCA balance trimmer is also drawn as R307 (listed as VCA Bal); read from the schematic by eye
R30810K10kread from the schematic by eye
R3095.1M5.1Mread from the schematic by eye
R31012K12kread from the schematic by eye
R3111K1kread from the schematic by eye
R31212K12kread from the schematic by eye
R31410K10kread from the schematic by eye
R4011M1Mread from the schematic by eye
R4041.2K1.2kread from the schematic by eye
R40515K15kread from the schematic by eye
R40620K20kread from the schematic by eye
R40718K18kread from the schematic by eye
R4084747read from the schematic by eye
R409??marked * not on board, no value given; read from the schematic by eye
R411360K360kread from the schematic by eye
R412110K110kread from the schematic by eye
R4134747read from the schematic by eye
R41410K10kread from the schematic by eye
R4151K1kread from the schematic by eye
R4161K1kread from the schematic by eye
R5028.2K8.2kread from the schematic by eye
R5035.1M5.1Mread from the schematic by eye
R5041.8M1.8Mread from the schematic by eye
R5053.9M3.9Mread from the schematic by eye
R506100K100kread from the schematic by eye
R508220K220kread from the schematic by eye
R510100K100kread from the schematic by eye
R511270K270kread from the schematic by eye
R5121K1kin resistor network IC501; read from the schematic by eye
R51368K68kread from the schematic by eye
R51412K12kread from the schematic by eye
R5152.7K2.7kread from the schematic by eye
R5161K1kin resistor network IC501; read from the schematic by eye
R5171K1kin resistor network IC501; read from the schematic by eye
R5181K1kin resistor network IC501; read from the schematic by eye
R5191K1kin resistor network IC501; read from the schematic by eye
R5201K1kin resistor network IC501; read from the schematic by eye
R5212.7K2.7kread from the schematic by eye
R5221K1kin resistor network IC501; read from the schematic by eye
R523330330read from the schematic by eye
R525470K470kread from the schematic by eye
R526470K470kread from the schematic by eye
R52747K47kread from the schematic by eye
R5281K1kin resistor network IC501; read from the schematic by eye
R53051K51kread from the schematic by eye
R53110K10kread from the schematic by eye
R53251K51kread from the schematic by eye
R60249.9K49.9kin IC601; read from the schematic by eye
R60356K56kread from the schematic by eye
R604330330read from the schematic by eye
R605100K100kread from the schematic by eye
R60610K10kmetal film; read from the schematic by eye
R6071K1kmetal film; read from the schematic by eye
R60810K10kmetal film; read from the schematic by eye
R6091K1kmetal film; read from the schematic by eye
R61010K10kread from the schematic by eye
R61115K15kread from the schematic by eye
R7011K1kread from the schematic by eye
R70224.9K24.9kmetal film; read from the schematic by eye
R70524.9K24.9kmetal film; read from the schematic by eye
R7084.99K4.99kmetal film; read from the schematic by eye
R71220K20kmetal film; read from the schematic by eye
R71356K56kread from the schematic by eye
R714330330read from the schematic by eye
R715100K100kread from the schematic by eye
R71610K10kmetal film, network IC706 (65-040); read from the schematic by eye
R71710K10kmetal film, network IC706; read from the schematic by eye
R7181K1kmetal film, network IC706; read from the schematic by eye
R7191K1kmetal film, network IC706; read from the schematic by eye
R72010K10knetwork IC706; read from the schematic by eye
R72115K15knetwork IC706; read from the schematic by eye
R8024.7K4.7kread from the schematic by eye
R8035.1K5.1kread from the schematic by eye
R804100100read from the schematic by eye
R8059.1K9.1kread from the schematic by eye
R8064.7K4.7kread from the schematic by eye
R8075.1K5.1kread from the schematic by eye
R80847K47kreplace with 33K if output is distorted; read from the schematic by eye
R80947K47kread from the schematic by eye
R901150150read from the schematic by eye
R9024.7K4.7kread from the schematic by eye
R9034.7K4.7kdesignator partly hidden, read from sequence; read from the schematic by eye
R9044.7K4.7kread from the schematic by eye
R9054.7K4.7kread from the schematic by eye
R906100K100kin resistor network IC903; read from the schematic by eye
R907100K100kin resistor network IC903; read from the schematic by eye
R908100K100kin resistor network IC903; read from the schematic by eye
R909100K100kin resistor network IC903; read from the schematic by eye
R910100K100kin resistor network IC903; read from the schematic by eye
R911100K100kin resistor network IC903; read from the schematic by eye
R912100K100kin resistor network IC903; read from the schematic by eye
R913100K100kin resistor network IC903; read from the schematic by eye
R91422K22kread from the schematic by eye
R91522K22kread from the schematic by eye
R9164.7K4.7kread from the schematic by eye
R91710K10kread from the schematic by eye
R91822K22kread from the schematic by eye
R91922K22kread from the schematic by eye
R92022K22kread from the schematic by eye
R92122K22kread from the schematic by eye
R922150150read from the schematic by eye
R923150150read from the schematic by eye
R924150150read from the schematic by eye
R925150150read from the schematic by eye
R926150150read from the schematic by eye
R9271K1kread from the schematic by eye
R9281K1kread from the schematic by eye
R92922K22kread from the schematic by eye
R930150150read from the schematic by eye
R93122K22kread from the schematic by eye
Capacitors 48
C10110uF10uelectrolytic; read from the schematic by eye
C10268pF68pread from the schematic by eye
C103100pF100pnote 12 area; read from the schematic by eye
C1040.001uF1nread from the schematic by eye
C1050.01uF10nread from the schematic by eye
C1060.01uF10nread from the schematic by eye
C1070.001uF1n35 kHz shunt cap; read from the schematic by eye
C1080.001uF1nread from the schematic by eye
C1090.01uF10nread from the schematic by eye
C1100.01uF10nread from the schematic by eye
C111.01uF10nread from the schematic by eye
C1120.1uF100nsample and hold cap; read from the schematic by eye
C1130.1uF100nread from the schematic by eye
C2015.6uF5.6uelectrolytic, loudness contour cap; read from the schematic by eye
C3010.22uF220nread from the schematic by eye
C302500pF500pread from the schematic by eye
C303.01uF10nread from the schematic by eye
C304.01uF10nread from the schematic by eye
C305500pF500pcould be 300pF; read from the schematic by eye
C3060.22uF220nread from the schematic by eye
C307.01uF10nread from the schematic by eye
C308.01uF10nread from the schematic by eye
C4010.1uF100nread from the schematic by eye
C4025.6uF5.6uelectrolytic, filter contour cap; read from the schematic by eye
C5010.1uF100nread from the schematic by eye
C502220uF220uelectrolytic, 6.3V; read from the schematic by eye
C503.01uF10nread from the schematic by eye
C5040.1uF100nread from the schematic by eye
C5050.1uF100nread from the schematic by eye
C5060.1uF100nread from the schematic by eye
C5070.1uF100nread from the schematic by eye
C508500pF500pread from the schematic by eye
C50910uF10uelectrolytic, 25V; read from the schematic by eye
C6010.068uF68nread from the schematic by eye
C6020.01uF10nread from the schematic by eye
C6030.01uF10nread from the schematic by eye
C604100pF100pread from the schematic by eye
C6050.001uF1nread from the schematic by eye
C701.068uF68nread from the schematic by eye
C702.001uF1nread from the schematic by eye
C703.01uF10nread from the schematic by eye
C704.001uF1nread from the schematic by eye
C705100pF100pread from the schematic by eye
C901.01uF10nread from the schematic by eye
C902.01uF10nread from the schematic by eye
C9030.01uF10nread from the schematic by eye
C9040.01uF10nread from the schematic by eye
C9050.01uF10nread from the schematic by eye
Diodes 25
CR1011N41481N4148per note 5; read from the schematic by eye
CR1021N41481N4148per note 5; read from the schematic by eye
CR1031N41481N4148per note 5; read from the schematic by eye
CR2011N41481N4148per note 5; read from the schematic by eye
CR2021N41481N4148per note 5; read from the schematic by eye
CR2031N41481N4148per note 5; read from the schematic by eye
CR2041N41481N4148per note 5; read from the schematic by eye
CR2051N41481N4148per note 5; read from the schematic by eye
CR2061N41481N4148per note 5; read from the schematic by eye
CR2071N41481N4148per note 5; read from the schematic by eye
CR2081N41481N4148per note 5; read from the schematic by eye
CR2091N41481N4148per note 5; read from the schematic by eye
CR2101N41481N4148per note 5; read from the schematic by eye
CR4011N41481N4148per note 5; read from the schematic by eye
CR4021N41481N4148per note 5; read from the schematic by eye
CR4031N41481N4148per note 5; read from the schematic by eye
CR4041N41481N4148per note 5; read from the schematic by eye
CR4051N41481N4148per note 5; read from the schematic by eye
CR4061N41481N4148per note 5; read from the schematic by eye
CR4071N41481N4148per note 5; read from the schematic by eye
CR4081N41481N4148per note 5; read from the schematic by eye
CR4091N41481N4148per note 5; read from the schematic by eye
CR4101N41481N4148per note 5; read from the schematic by eye
CR6011N41481N4148drawn 1N4148; read from the schematic by eye
CR7011N41481N4148per note 5; read from the schematic by eye
Transistors 21
Q101E402E402dual N-JFET, glide; read from the schematic by eye
Q201D16P1D16P1Darlington; read from the schematic by eye
Q202D16P1D16P1Darlington; read from the schematic by eye
Q2032N39062N3906read from the schematic by eye
Q3012N39062N3906read from the schematic by eye
Q3022N33922N3392NPN per note 3; read from the schematic by eye
Q401D16P1D16P1Darlington; read from the schematic by eye
Q402D16P1D16P1Darlington; read from the schematic by eye
Q5012N39062N3906read from the schematic by eye
Q5042N33922N3392NPN per note 3, filter ladder; read from the schematic by eye
Q5052N33922N3392NPN per note 3, filter ladder; read from the schematic by eye
Q5062N33922N3392NPN per note 3, filter ladder; read from the schematic by eye
Q5072N33922N3392NPN per note 3, filter ladder; read from the schematic by eye
Q5082N33922N3392NPN per note 3, filter ladder; read from the schematic by eye
Q5092N33922N3392NPN per note 3, filter ladder; read from the schematic by eye
Q5132N33922N3392NPN per note 3; read from the schematic by eye
Q601E112E112N-JFET; read from the schematic by eye
Q701E112E112N-JFET; read from the schematic by eye
Q9012N39062N3906read from the schematic by eye
Q9022N33922N3392NPN per note 3; read from the schematic by eye
Q9032N33922N3392NPN per note 3; read from the schematic by eye
ICs 28
A101741A741Aread from the schematic by eye
A10230803080OTA; read from the schematic by eye
A10314581458dual op amp, A103A/A103B; read from the schematic by eye
IC10440114011read from the schematic by eye
IC105??frequency divider resistor network R118-R130, values not shown; read from the schematic by eye
IC10640164016replace with 4016 only; read from the schematic by eye
IC10740164016read from the schematic by eye
IC20140164016read from the schematic by eye
A30130803080OTA; ** replace with 3080A on older models; read from the schematic by eye
IC40140164016read from the schematic by eye
A50130803080OTA; ** replace with 3080A; read from the schematic by eye
IC502CA3046CA3046transistor array: Q502, Q503, Q510, Q511, Q512; read from the schematic by eye
IC50340164016read from the schematic by eye
A601741A741Aread from the schematic by eye
A60230803080OTA; ** replace with 3080A; read from the schematic by eye
IC70140164016or 4066; replace with 4066 for better tracking; read from the schematic by eye
A701741A741Aread from the schematic by eye
A70230803080OTA; ** replace with 3080A; read from the schematic by eye
IC80140164016replace with 4066 if output is distorted; read from the schematic by eye
IC90174107410read from the schematic by eye
IC90274267426read from the schematic by eye
IC90474267426read from the schematic by eye
IC90574107410read from the schematic by eye
IC90674517451read from the schematic by eye
IC90774267426read from the schematic by eye
IC90874747474read from the schematic by eye
IC90974L0474L04read from the schematic by eye
IC91074747474read from the schematic by eye
Potentiometers 15
GlideA5MA5MPotentiometerR142, drawn 5M AUD; read from the schematic by eye
AttackA100KA100kPotentiometerR201 loudness attack, drawn 100K AUD; read from the schematic by eye
Sustain1K1kPotentiometerR202; read from the schematic by eye
Decay500K500kPotentiometerR209 loudness decay, drawn 500K-RA (reverse audio); read from the schematic by eye
Foot Loudness100K100kPotentiometerR302, pedal; read from the schematic by eye
VolumeA100KA100kPotentiometerR317 output level, drawn 100K AUD; read from the schematic by eye
Filter Attack10K10kPotentiometerR402; read from the schematic by eye
Filter Contour Amount1K1kPotentiometerR403; read from the schematic by eye
Filter Decay500K500kPotentiometerR410, drawn 500KRA (reverse audio); read from the schematic by eye
Filter Cut OffB100KB100kPotentiometerR501, drawn 100K LIN; read from the schematic by eye
Foot Filter100K100kPotentiometerR507, pedal; read from the schematic by eye
Regen1K1kPotentiometerR524; read from the schematic by eye
Osc B Tune10K10kPotentiometerR707; read from the schematic by eye
Beat Rate1K1kPotentiometerR710; read from the schematic by eye
A-B Mix10K10kPotentiometerR801; read from the schematic by eye
Trimmers 12
Scale1K1kR131; read from the schematic by eye
FET Bal50K50kR146; read from the schematic by eye
Fine Tune2.5K2.5kR150, cermet; read from the schematic by eye
VCA Bal100K100kdrawn R307, clashes with resistor R307 2.2K; read from the schematic by eye
Filter Freq Center100K100kR509 center trim adjust; read from the schematic by eye
R52950K50kdrawn 50KRA, regen range in IC503 switching; read from the schematic by eye
Freq-A10K10kR601, cermet, in IC601; read from the schematic by eye
Taurus Freq10K10kR703, cermet, IC702; read from the schematic by eye
Tuba Freq10K10kR704, cermet, IC703; read from the schematic by eye
Bass Freq10K10kR706, cermet, IC703; read from the schematic by eye
Range-B10K10kR709, cermet, IC704; read from the schematic by eye
Freq-B10K10kR711, cermet, IC705; read from the schematic by eye
Switches 8
SW901SPSTSPSTVariable preset; read from the schematic by eye
SW902SPSTSPSTTaurus preset; read from the schematic by eye
SW903SPSTSPSTTuba preset; read from the schematic by eye
SW904SPSTSPSTBass preset; read from the schematic by eye
SW905SPDTSPDTOctave, NC/NO; read from the schematic by eye
SW906SPDTSPDTDecay, NC/NO; read from the schematic by eye
SW907SPDTSPDTGlide on/off, NC/NO; read from the schematic by eye
SW908SP3TSP3THi/Med/Lo; read from the schematic by eye
LEDs 7
CR901SSL-22SSL-22per note 4; read from the schematic by eye
CR902SSL-22SSL-22per note 4; read from the schematic by eye
CR903SSL-22SSL-22per note 4; read from the schematic by eye
CR904SSL-22SSL-22per note 4; read from the schematic by eye
CR906SSL-22SSL-22per note 4; read from the schematic by eye
CR907SSL-22SSL-22per note 4; read from the schematic by eye
CR909SSL-22SSL-22per note 4; read from the schematic by eye