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CVMod8 V2 Main

Thorinair·Avalon-Harmonics·Modules/CVMod8_V2/kicad/CVMod8_V2_Main.kicad_pcb

CVMod8 V2 Main PCB layout, top view — open source board by Thorinair
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About the CVMod8 V2 Main PCB

CVMod8 V2 Main is an open source PCB design by Thorinair, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 100.8 × 108.6 mm, with 161 components from 30 distinct parts.

Other key parts include the TL074, LM324, 78L05 and 79L05. By type, the board carries 79 resistors, 14 capacitors, 10 ICs, 8 LEDs and 2 diodes.

It belongs with the audio designs in this gallery.

From the project

A collection of Avalon Harmonics branded synthesizer modules.

8 channel CV attenuverter, offset and mixer

Now comes as an SMD module. Features a golden (ENIG coated) panel. THT version has been discontinued.

CVMod8 V2 is successor to the old CVMod8. The module provides 8 channels of independent CV attenuverters and offset controls, as well as offset polarity switches and forward switches for mixing the channels together.

Main components on the CVMod8 V2 Main

TL074LM32478L0579L05

CVMod8 V2 Main bill of materials (BOM)

161 components, 30 distinct parts — part numbers from the project's BOM.

QtyPartRefs
5
TL074
U1, U2, U3, U4, U5
1
LM324
TL074
U6
2
TL074
U7, U8
1
78L05
U9
1
79L05
U10
16
PJ301M-12
J_IN1, J_IN2, J_IN3, J_IN4, J_IN5, J_IN6, J_IN7, J_IN8 +8
1
PWR_10_Pin
PWR1
8
B100k
P_ATN1, P_ATN2, P_ATN3, P_ATN4, P_ATN5, P_ATN6, P_ATN7, P_ATN8
8
B100k
P_OFS1, P_OFS2, P_OFS3, P_OFS4, P_OFS5, P_OFS6, P_OFS7, P_OFS8
15
SW_SPDT
SW_FWD1, SW_FWD2, SW_FWD3, SW_FWD4, SW_FWD5, SW_FWD6, SW_FWD7, SW_POL1 +7
8
LED (Bi)
LD1, LD2, LD3, LD4, LD5, LD6, LD7, LD8
2
1N4001
FM4001
D1, D2
2
47UF
47uF
C1, C2
3
10UF
0.1uF
C3, C4, C5
1
47PF
0.1uF
C6
8
0.1uF
C7, C8, C9, C10, C11, C12, C13, C14
2
1k
R1, R5
1
100
1k
R2
1
220
1k
R3
1
330
1k
R4
Show 10 more
QtyPartRefs
4
2.2K
1k
R6, R7, R8, R9
5
15K
1k
R10, R13, R14, R15, R16
2
10K
1k
R11, R12
1
33K
100k
R17
6
47K
100k
R18, R19, R20, R21, R22, R23
4
100K
100k
R24, R25, R26, R33
1
120K
100k
R27
1
160K
100k
R28
49
100k
R29, R30, R31, R32, R35, R36, R37, R38 +41
1
240K
100k
R34

CVMod8 V2 Main design files

The KiCad project lives in the Thorinair/Avalon-Harmonics repository on GitHub; these links point at the commit this page was built from.

CVMod8 V2 Main: common questions

How big is the CVMod8 V2 Main PCB?

The CVMod8 V2 Main measures 100.8 × 108.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the CVMod8 V2 Main?

161 components, from 30 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the CVMod8 V2 Main design files?

From the Thorinair/Avalon-Harmonics repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the CVMod8 V2 Main design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which Thorinair chose for the repository.

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