Akashic Guitar effects circuit lookup
CLOCK RATELAG TIMEFREQDELAY TIMELFO FREQLEVEL

Enclosure not stated · 6 knobs

Experimentalists Anonymous

Roland 150 Full Signal Source

Based on the Roland 150 Full Signal Source

Category
Ring Mod / Synth· Oscillators LFOs and Signal Generators
Controls
Clock Rate · Lag Time · Freq · Delay Time · LFO Freq · Level
Price
see vendor
Tags
Oscillators LFOs and Signal Generators
Open the schematic at Experimentalists Anonymous

Schematic

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

Parts list 195 rows

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Check before you build · 40 values the reader of this schematic was not sure of
  • R8: could be 47 or 47K
  • R54: 270K or 220K
  • R55: 470K or 430K
  • R56: 390K or 300K
  • R58: 82K or 68K
  • R60: 15K or 18K
  • R68: 18K or 10K, designator unclear
  • R69: 15K, designator unclear
  • R70: 18K, designator unclear
  • R75: 10K or 47K
  • R76: 33K or 30K
  • R77: designator unclear
  • R78: designator unclear
  • R79: designator unclear
  • R80: designator clash with R90
  • R95: 24K or 39K
  • R97: 22K or 27K
  • R50: 2.2K or 3.3K
  • R110: 39K or 33K
  • R111: 39K or 33K
  • R112: 39K or 33K
  • R6: designator printed as R5
  • C5: .01 or .047
  • C6: .01 or .047
  • C8: .47 or .022, small print
  • C9: 33/16 or 3.3/16
  • C11: value illegible, best guess 1uF electrolytic
  • C16: 4.7/35 hard to read
  • C17: 47/16 or 10/16
  • C19: 47/16 or 10/16
  • C18: .01 or .047
  • C20: .01 or .047
  • C21: 1/16 NP hard to read
  • C23: designator printed C22 twice
  • Freq: VR6 value 100K(B) small print
  • LFO Freq: VR8 value small print; which FREQ is LFO vs ring is inferred
  • VR1: value could be 100(B) or 10K(B)
  • VR2: 100K(B) hard to read
  • VR9: 100K(B) hard to read
  • Level: VR10 100K(B) small print
RefValueNormalizedTypeNotes
Resistors 115
R1100K100kread from the schematic by eye
R21K1kMF; read from the schematic by eye
R31K1kMF; read from the schematic by eye
R4100K100kread from the schematic by eye
R510K10kQ1 emitter; designator R5 printed twice; read from the schematic by eye
R61K1kseries to IC1 pin 4; printed as R5, renumbered R6; read from the schematic by eye
R7100K100kread from the schematic by eye
R84747MF; read from the schematic by eye
R91K1kMF; read from the schematic by eye
R101K1kMF; read from the schematic by eye
R115.6K5.6kread from the schematic by eye
R125.1K5.1kread from the schematic by eye
R132.2K2.2kread from the schematic by eye
R142.2K2.2kread from the schematic by eye
R1510K10kread from the schematic by eye
R1610K10kread from the schematic by eye
R18150K150kread from the schematic by eye
R19150K150kread from the schematic by eye
R201.5M1.5Mread from the schematic by eye
R211.5M1.5Mread from the schematic by eye
R22100K100kread from the schematic by eye
R23150K150kread from the schematic by eye
R242.2K2.2kread from the schematic by eye
R252.2K2.2kread from the schematic by eye
R26330K330kread from the schematic by eye
R27330K330kread from the schematic by eye
R28680K680kread from the schematic by eye
R29100K100kread from the schematic by eye
R30100K100kread from the schematic by eye
R3110K10kread from the schematic by eye
R3310K10kread from the schematic by eye
R34150K150kread from the schematic by eye
R3510K10kread from the schematic by eye
R37100K100kread from the schematic by eye
R381M1Mread from the schematic by eye
R391K1kread from the schematic by eye
R40100K100kread from the schematic by eye
R4147K47kread from the schematic by eye
R4210K10kread from the schematic by eye
R4322K22kread from the schematic by eye
R4422K22kread from the schematic by eye
R45100K100kread from the schematic by eye
R46100K100kread from the schematic by eye
R4710K10kread from the schematic by eye
R481K1kread from the schematic by eye
R49100K100kread from the schematic by eye
R502.2K2.2kLED D5 resistor; read from the schematic by eye
R516.8K6.8kread from the schematic by eye
R52100K100kread from the schematic by eye
R5333K33kread from the schematic by eye
R54270K270kread from the schematic by eye
R55470K470kread from the schematic by eye
R56390K390kread from the schematic by eye
R57100K100kread from the schematic by eye
R5882K82kread from the schematic by eye
R5910K10kread from the schematic by eye
R6015K15kread from the schematic by eye
R614.7K4.7kread from the schematic by eye
R62820K820kread from the schematic by eye
R631K1kread from the schematic by eye
R64100K100kread from the schematic by eye
R6522K22kread from the schematic by eye
R6610K10kread from the schematic by eye
R67100K100kread from the schematic by eye
R6818K18kread from the schematic by eye
R6915K15kread from the schematic by eye
R7018K18kread from the schematic by eye
R711K1kread from the schematic by eye
R721K1kread from the schematic by eye
R7315K15kread from the schematic by eye
R7410K10kread from the schematic by eye
R7510K10kread from the schematic by eye
R7633K33kread from the schematic by eye
R7710K10kread from the schematic by eye
R78100K100kread from the schematic by eye
R791K1kread from the schematic by eye
R80330K330kto pin 24; label looks like R90, which is also printed on the 56K; read from the schematic by eye
R8110K10kread from the schematic by eye
R82100K100kread from the schematic by eye
R8347K47kread from the schematic by eye
R84100K100kread from the schematic by eye
R85100K100kread from the schematic by eye
R8682K82kread from the schematic by eye
R87100K100kread from the schematic by eye
R8818K18kread from the schematic by eye
R8982K82kread from the schematic by eye
R9056K56kread from the schematic by eye
R9147K47kread from the schematic by eye
R9215K15kread from the schematic by eye
R93100K100kread from the schematic by eye
R94100K100kread from the schematic by eye
R9524K24kread from the schematic by eye
R96100K100kread from the schematic by eye
R9722K22kread from the schematic by eye
R98150K150kread from the schematic by eye
R99100K100kread from the schematic by eye
R1001K1kread from the schematic by eye
R1011K1kread from the schematic by eye
R102330K330kread from the schematic by eye
R1031K1kread from the schematic by eye
R1041K1kread from the schematic by eye
R1051K1kread from the schematic by eye
R10647K47kread from the schematic by eye
R1075.6K5.6kread from the schematic by eye
R108100K100kread from the schematic by eye
R1094.7K4.7kread from the schematic by eye
R11039K39kread from the schematic by eye
R11139K39kread from the schematic by eye
R11239K39kread from the schematic by eye
R11322K22kread from the schematic by eye
R11447K47kread from the schematic by eye
R115100K100kread from the schematic by eye
R1162.2K2.2kLED D12 resistor; read from the schematic by eye
R11747K47kread from the schematic by eye
R11847K47kread from the schematic by eye
Capacitors 23
C1.1uF100nread from the schematic by eye
C2.1uF100nread from the schematic by eye
C3.1uF100nread from the schematic by eye
C4.033uF33nread from the schematic by eye
C5.01uF10nread from the schematic by eye
C6.01uF10nread from the schematic by eye
C7100pF100pread from the schematic by eye
C8.47uF470nsample-and-hold cap; read from the schematic by eye
C933uF33uelectrolytic 16V; read from the schematic by eye
C10.0022uF2.2nread from the schematic by eye
C111uF1uelectrolytic; read from the schematic by eye
C12.1uF100nread from the schematic by eye
C13.1uF100nread from the schematic by eye
C14.047uF47nread from the schematic by eye
C15.1uF100nread from the schematic by eye
C164.7uF4.7uelectrolytic 35V; read from the schematic by eye
C1747uF47uelectrolytic 16V, +15V filter; read from the schematic by eye
C18.01uF10n+15V decoupling; read from the schematic by eye
C1947uF47uelectrolytic 16V, -15V filter; read from the schematic by eye
C20.01uF10n-15V decoupling; read from the schematic by eye
C211uF1unon-polar 16V; read from the schematic by eye
C221uF1unon-polar 16V; read from the schematic by eye
C231uF1unon-polar 16V; printed C22 as well; read from the schematic by eye
Diodes 10
D1DiodeDIODEno part number given; read from the schematic by eye
D2DiodeDIODEno part number given; read from the schematic by eye
D3DiodeDIODEno part number given; read from the schematic by eye
D4DiodeDIODEno part number given; read from the schematic by eye
D6DiodeDIODEno part number given; read from the schematic by eye
D7DiodeDIODEno part number given; read from the schematic by eye
D8DiodeDIODEno part number given; read from the schematic by eye
D9DiodeDIODEno part number given; read from the schematic by eye
D10DiodeDIODEno part number given; read from the schematic by eye
D11DiodeDIODEno part number given; read from the schematic by eye
Transistors 21
Q1??bipolar transistor, no part number given; read from the schematic by eye
Q22SC8282SC828noise source; read from the schematic by eye
Q3??bipolar transistor, no part number given; read from the schematic by eye
Q4??bipolar transistor, no part number given; read from the schematic by eye
Q5??bipolar transistor, no part number given; read from the schematic by eye
Q6??JFET, no part number given; read from the schematic by eye
Q7??bipolar transistor, no part number given; read from the schematic by eye
Q8??bipolar transistor, no part number given; read from the schematic by eye
Q9??bipolar transistor, no part number given; read from the schematic by eye
Q10??bipolar transistor, no part number given; read from the schematic by eye
Q11??bipolar transistor, no part number given; read from the schematic by eye
Q12??bipolar transistor, no part number given; read from the schematic by eye
Q13??bipolar transistor, no part number given; read from the schematic by eye
Q14??bipolar transistor, no part number given; read from the schematic by eye
Q15??JFET, no part number given; read from the schematic by eye
Q16??bipolar transistor, no part number given; read from the schematic by eye
Q17??JFET, no part number given; read from the schematic by eye
Q18??bipolar transistor, no part number given; read from the schematic by eye
Q19??JFET, no part number given; read from the schematic by eye
Q20??bipolar transistor, no part number given; read from the schematic by eye
Q21??bipolar transistor, no part number given; read from the schematic by eye
ICs 9
IC1LM1496HLM1496Hbalanced modulator; read from the schematic by eye
IC245584558dual op amp; read from the schematic by eye
IC345584558dual op amp; read from the schematic by eye
IC4TL082TL082dual op amp; read from the schematic by eye
IC5TL082TL082dual op amp (drawn 1/2 082); read from the schematic by eye
IC6BA662BBA662BOTA; read from the schematic by eye
IC7TL082TL082dual op amp (drawn 1/2 082); read from the schematic by eye
IC845584558dual op amp; read from the schematic by eye
IC9BA662BBA662BOTA; read from the schematic by eye
Potentiometers 6
Clock RateA1MA1MPotentiometerVR4; read from the schematic by eye
Lag TimeA1MA1MPotentiometerVR5; read from the schematic by eye
FreqB100KB100kPotentiometerVR6, ring/main frequency; read from the schematic by eye
Delay TimeA2MA2MPotentiometerVR7; read from the schematic by eye
LFO FreqB100KB100kPotentiometerVR8, labeled FREQ; read from the schematic by eye
LevelB100KB100kPotentiometerVR10; read from the schematic by eye
Trimmers 4
VR1B10K10kMod Bal; read from the schematic by eye
VR2B100K100kC/F Bal; read from the schematic by eye
VR3B10K10kNoise Level; read from the schematic by eye
VR9B100K100kWaveform Adj; read from the schematic by eye
Switches 5
SW1SP3TSP3TExt/LFO/Noise source; read from the schematic by eye
SW2SP3TSP3TFreq Range H/M/L; read from the schematic by eye
SW3SPDTSPDTKybd Trig on/off; read from the schematic by eye
SW4SP4TSP4TWaveform; read from the schematic by eye
SW5SPDTSPDTOutput Level; read from the schematic by eye
LEDs 2
D5LEDLEDclock indicator; read from the schematic by eye
D12LEDLEDgate indicator; read from the schematic by eye