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390R R5
39K R26, R11, R20, R12, R27, R2
47K R39, R45, R47, R41
4K7 R42, R36, R37, R44
82K R1
Capacitors
100nF polyester film 5mm box C12, C11, C1, C3
10nF polyester film 5mm box C4
1nF polyester film 5mm box C6, C5
22uF, 35V radial electrolytic C8, C2, C7
2u2, 63V radial electrolytic C9, C10
Discrete Semiconductors
1N4148 or 1N914 signal diode D1-9
BC549 or BC550 NPN transistor Q9, Q5, Q8, Q12, Q11, Q10, Q1
BC559 or BC560 PNP transistor Q7, Q6, Q2, Q3, Q4
LED 5mm Bicolour LED OUT
LED 5mm Red LED S-R (SET)
LED 5mm orange/yellow LED R-LD (RESET)
LED 5mm green LED G-LD (GATE)
Integrated Circuits
4001 CMOS quad NOR gate U4
TL071 single FET op-amp U2
TL072 dual FET op-amp U3, U1
Other
4-way 0.156” Molex/MTA connector PSU
4-way 0.1” header and plug MOTM
SPNO push switches GATE and RESET
SPDT toggle switch AD/AR, LFO/EG, GATED
10KA linear single gang variable resistor UP and DOWN
Two pot brackets to suit
Leaded or taped ferrite beads L1, L2
1m of multistrand hook up wire
Two knobs
Two decent quality jack sockets, eg. Switchcraft 112
You may well want to use sockets for the ICs. I would recommend low profile turned pin
types as these are the most reliable. Three 8-pin DILs and one 14-pin DIL are needed.
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