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VCA

telec16·modular-synth·VCA/VCA.kicad_pcb

VCA PCB layout, top view — open source board by telec16
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About the VCA PCB

VCA is an open source PCB design by telec16, published on GitHub. It is a 2-layer board measuring 40 × 200 mm, with 54 components from 26 distinct parts.

Other key parts include the LM13700 and TL082. By type, the board carries 24 resistors, 7 connectors, 6 diodes, 6 capacitors and 5 ICs.

It belongs with the audio designs in this gallery.

From the project

~~Little side project, don't expect much updates.~~

~~Little side project, don't expect much updates.~~

VCO - 3340 - Schmitt inverter - Opamp V1 - Opamp V2 LFO - Hex Inverter Sequencer - µC - random jazz generator Random generator - zener - µC ADSR - Opamp VCA - LM13700 - Vactrol Quantizer (CV correction) - µC VCF - ? Drum kit - ??? Frequency multiplier/divider - CD4046 PLL V1 - CD4046 PLL V2 Wavefolder - Bipolar - Opamp CV Glider - RC circuit * Scope - µC

Main components on the VCA

LM13700TL082

VCA bill of materials (BOM)

54 components, 26 distinct parts.

QtyPartRefs
1
LM13700
U1
4
TL082
U2, U3, U4, U5
1
EuroPower
J1
1
CV1
J2
1
IN1
J3
1
OUT1
J4
1
CV2
J5
1
IN2
J6
1
OUT2
J7
4
100k
RV1, RV2, RV4, RV5
2
1k
RV3, RV6
4
LED
D1, D2, D3, D4
2
LED
D5, D6
6
100n
C1, C2, C3, C4, C5, C6
2
4k7
R1, R12
6
47k
R2, R3, R6, R13, R14, R17
4
2k2
R4, R5, R15, R16
1
12k
R7
2
22k
R8, R19
2
1k
R9, R20
Show 6 more
QtyPartRefs
1
120k
R10
1
220k
R11
1
10k
R18
1
150k
R21
1
27k
R22
2
1k5
R23, R24

VCA design files

The KiCad project lives in the telec16/modular-synth repository on GitHub; these links point at the commit this page was built from.

VCA: common questions

How big is the VCA PCB?

The VCA measures 40 × 200 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the VCA?

54 components, from 26 distinct parts. The full bill of materials is listed on this page.

Where can I download the VCA design files?

From the telec16/modular-synth repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the VCA design in my own project?

The repository has no license, so all rights stay with telec16. Use it as a reference, and ask the author before reusing the design.

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