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Experimentalists Anonymous

Moog 901A

Category
Ring Mod / Synth· Oscillators LFOs and Signal Generators
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Tags
Oscillators LFOs and Signal Generators
Open the schematic at Experimentalists Anonymous

Schematic

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Check before you build · 1 value the reader of this schematic was not sure of
  • NPN/PNP split taken from the legend plus Table 1 voltages; Q3, Q4, Q10 PNP (2N4058), the rest NPN (2N3391A or 2N3392)
RefValueNormalizedTypeNotes
Resistors 31
R4680K680kread from the schematic by eye
R54.7M4.7Mread from the schematic by eye
R6100K100kread from the schematic by eye
R76.8K6.8kread from the schematic by eye
R827K27kread from the schematic by eye
R96868read from the schematic by eye
R1068K68kread from the schematic by eye
R1168K68kread from the schematic by eye
R1218K18kread from the schematic by eye
R131.2K1.2kread from the schematic by eye
R14220220read from the schematic by eye
R1536K36kread from the schematic by eye
R16120K120kread from the schematic by eye
R1727K27kread from the schematic by eye
R183.3M3.3Mread from the schematic by eye
R19150K150kread from the schematic by eye
R20680680read from the schematic by eye
R21150K150kread from the schematic by eye
R22820K820kread from the schematic by eye
R2310K10kread from the schematic by eye
R247.5K7.5kread from the schematic by eye
R286.8K6.8kread from the schematic by eye
R29330330read from the schematic by eye
R30100K100kread from the schematic by eye
R31100100first of the fixed-control-voltage divider string; read from the schematic by eye
×11100100rest of the fixed-control-voltage divider string, undesignated; read from the schematic by eye
R32470470read from the schematic by eye
R33130130read from the schematic by eye
×3100K100k1%, control input resistors J1-J3, undesignated; read from the schematic by eye
×1470K470kundesignated, from -6V to the control node; read from the schematic by eye
×13.9M3.9Mundesignated, Q10 collector to ground; read from the schematic by eye
Capacitors 7
C220pF220pdrawn with designator 'C' only; read from the schematic by eye
C1220uF220ufrom the adjustment-locations layout only, not in the schematic; read from the schematic by eye
C2.005uF5nread from the schematic by eye
C3.005uF5nread from the schematic by eye
C4.39uF390nread from the schematic by eye
C60.005uF5nfrom the adjustment-locations layout only, not in the schematic; read from the schematic by eye
×110uF10uelectrolytic, undesignated, on pulse-width pot; read from the schematic by eye
Transistors 10
Q12N3391A2N3391ANPN; note: all NPN are 2N3391A or 2N3392; read from the schematic by eye
Q22N3391A2N3391ANPN; or 2N3392; read from the schematic by eye
Q32N40582N4058PNP; read from the schematic by eye
Q42N40582N4058PNP; read from the schematic by eye
Q52N3391A2N3391ANPN; or 2N3392; read from the schematic by eye
Q62N3391A2N3391ANPN; or 2N3392; read from the schematic by eye
Q72N3391A2N3391ANPN; or 2N3392; read from the schematic by eye
Q82N3391A2N3391ANPN; or 2N3392; read from the schematic by eye
Q92N3391A2N3391ANPN; or 2N3392; read from the schematic by eye
Q102N40582N4058PNP; read from the schematic by eye
ICs 1
×2CA3019CA3019diode array, undesignated; read from the schematic by eye
Trimmers 5
P11K1kscale adjustment; read from the schematic by eye
P2100K100khigh compensation; read from the schematic by eye
P35K5kfixed control voltage; read from the schematic by eye
P4100K100klow compensation; read from the schematic by eye
P625K25kwidth of pulse waveform; read from the schematic by eye