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The following devices are standard through hole parts.
3mm green LED
LD1 – LD15
See later in this document for details regarding the fitting of the LEDs.
Integrated Circuits
The following parts are all surface mount devices. All are small outline (SOIC) narrow body
packages.
CD4049UBD hex inverter
U1, U2, U4
AD712JRZ dual op-amp
U3
TL072ACD dual op-amp
U5
Potentiometers
All pots are Alpha 9mm vertical pots with 6.35mm round shafts.
50K linear 9mm
VR_A, VR_B, VR1A – VR8A, VR1B – VR8B
Switches
C&K D6R push switch
SHIFT, LOAD
On-Off-On toggle switch
GATE_1 – GATE_8, STATE_1 – STATE_8, MODE_1 – MODE_7,
OCT_A, OCT_B
On-On toggle switch
SYNC, EXT, MODE_8
Miscellaneous
4 way 0.1” SIL header*
CN9, CN12
10 way 0.1” SIL header*
CN1, CN2, CN3, CN4, CN5, CN6, CN7, CN8, CN10, CN11
* SIL headers fitted to the underside of the board and soldered from the top. ie. the pins face down.
Thonkiconn 3.5mm socket
OUT_A1, OUT_A2, OUT_B1, OUT_B2, CV_IN_A, CV_IN_B,
RESET, GATE_A, GATE_B, GATE_AB, SHIFT_IN, LOAD_IN
18 knobs to suit. Davies 1900H or clones thereof are to be recommended.
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