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PanVCA Main

Thorinair·Avalon-Harmonics·Modules/PanVCA/kicad/PanVCA_Main.kicad_pcb

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

PanVCA 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 19.5 × 108.6 mm, with 80 components from 35 distinct parts.

Other key parts include the TL074, LM324, TL072 and 78L05. By type, the board carries 53 resistors, 14 capacitors, 8 ICs, 2 transistors and 2 diodes.

It belongs with the audio designs in this gallery.

From the project

A collection of Avalon Harmonics branded synthesizer modules.

Stereo VCA and Panner with attenuverter and offset

PanVCA is two modules in one: a stereo VCA and a Panner, combined with an attenuverter knob for the CV signal, and a full range offset knob. The mode can be changed with a flip of the dedicated MODE switch. PanVCA is a spiritual successor to the Avalon Harmonics iVCA, significantly improving on its functionality but keeping the classic transistor circuit. Features a golden (ENIG coated) panel.

Main components on the PanVCA Main

TL074LM324TL07278L05

PanVCA Main bill of materials (BOM)

80 components, 35 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TL074
U1
4
TL074
TL072
U2, U3, U4, U5
1
LM324
TL072
U6
1
TL072
U7
1
78L05
U8
1
BCM847BS
Q1
1
BCM847BS
Q2
1
PWR_10_Pin
PWR1
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
1
100
R1
1
100
R2
1
220
1k
R3
1
330
1k
R4
1
1k
R5
2
2.2K
10k
R6, R7
2
2.2K
10k 0.1%
R8, R9
Show 15 more
QtyPartRefs
1
15K
10k 0.1%
R10
1
10K
10k 0.1%
R11
1
10K
16k
R12
1
15K
16k
R13
3
15K
20k 0.1%
R14, R15, R16
1
33K
20k 0.1%
R17
4
47K
82k
R18, R19, R20, R21
2
47K
100k
R22, R23
4
100K
100k
R24, R25, R26, R33
1
120K
100k
R27
1
160K
100k
R28
17
100k
R29, R30, R31, R32, R35, R36, R37, R38 +9
1
240K
100k
R34
4
100k 0.1%
R48, R49, R50, R51
2
240k
R52, R53

PanVCA 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.

PanVCA Main: common questions

How big is the PanVCA Main PCB?

The PanVCA Main measures 19.5 × 108.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PanVCA Main?

80 components, from 35 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 PanVCA 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 PanVCA 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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