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RANGEPULSE DURATION

Enclosure not stated · 2 knobs

Experimentalists Anonymous

PAIA 2720-2a VCO

Category
Ring Mod / Synth· Oscillators LFOs and Signal Generators
Controls
Range · Pulse Duration
Price
see vendor
Tags
Oscillators LFOs and Signal Generators
Open the schematic at Experimentalists Anonymous

Schematic

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Parts list 62 rows

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Check before you build · 1 value the reader of this schematic was not sure of
  • Q1-Q12: no part numbers or polarity legend on the drawing
RefValueNormalizedTypeNotes
Resistors 32
R1150K150kread from the schematic by eye
R2150K150kread from the schematic by eye
R3150K150kread from the schematic by eye
R410K10kread from the schematic by eye
R510K10kread from the schematic by eye
R61.8K1.8kread from the schematic by eye
R8??value selected on test; read from the schematic by eye
R96.8K6.8kread from the schematic by eye
R1010K10kread from the schematic by eye
R111K1kread from the schematic by eye
R126.8K6.8kread from the schematic by eye
R13330330read from the schematic by eye
R144747read from the schematic by eye
R165.6K5.6kread from the schematic by eye
R176.8K6.8kread from the schematic by eye
R186.8K6.8kread from the schematic by eye
R193.9MEG3.9Mread from the schematic by eye
R20680680read from the schematic by eye
R214.7K4.7kread from the schematic by eye
R22680680read from the schematic by eye
R244.7K4.7kread from the schematic by eye
R26100100read from the schematic by eye
R2747K47kread from the schematic by eye
R281K1kread from the schematic by eye
R29150K150kread from the schematic by eye
R3010K10kread from the schematic by eye
R31100K100kread from the schematic by eye
R328.2K8.2kread from the schematic by eye
R33270270read from the schematic by eye
R34270270read from the schematic by eye
R354.7K4.7kread from the schematic by eye
×13.9MEG3.9MIC1 offset network in dashed box, 'see text'; read from the schematic by eye
Capacitors 8
C1.1uF100ntiming cap; read from the schematic by eye
C215pF15pIC1 compensation; read from the schematic by eye
C32.2uF2.2u6V; read from the schematic by eye
C42.2uF2.2u6V; read from the schematic by eye
C52.2uF2.2u6V; read from the schematic by eye
C6100uF100u10V; read from the schematic by eye
C7100uF100u6V; read from the schematic by eye
C82.2uF2.2u10V; read from the schematic by eye
Diodes 4
D1DiodeDIODEno part number given; read from the schematic by eye
D2DiodeDIODEno part number given; read from the schematic by eye
D35.6V5V6zener; read from the schematic by eye
D45.6V5V6zener; read from the schematic by eye
Transistors 12
Q1??transistor, no part number; read from the schematic by eye
Q2??FET (discharge), no part number; read from the schematic by eye
Q3??transistor, no part number; read from the schematic by eye
Q4??transistor, no part number; read from the schematic by eye
Q5??NPN, no part number; read from the schematic by eye
Q6??NPN, no part number; read from the schematic by eye
Q7??NPN, no part number; read from the schematic by eye
Q8??NPN, no part number; read from the schematic by eye
Q9??transistor, no part number; read from the schematic by eye
Q10??transistor, no part number; read from the schematic by eye
Q11??transistor between Q3 and Q4, no part number; read from the schematic by eye
Q12??transistor in -VR regulator, no part number; read from the schematic by eye
ICs 1
IC1??op amp (pins 1/8 compensation), no part number; read from the schematic by eye
Potentiometers 2
Range10K10kPotentiometerR7; read from the schematic by eye
Pulse Duration1K1kPotentiometerR25; read from the schematic by eye
Trimmers 3
R15100100Triangle symmetry trim; read from the schematic by eye
R231K1kPulse duration trim; read from the schematic by eye
×150K50kIC1 offset, dashed box 'see text'; read from the schematic by eye