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2 layers40 × 200 mmVCA, the printed circuit board in 3D

Little side project, don't expect much updates.

Size
40 × 200 mm
Copper layers
2
Thickness
1.6 mm
Parts
57
Nets
57
Pads
194
Tracks, vias
306, 50
Pours
3
Routed
Yes
KiCad
KiCad 5 (file 20171130)
Created
18 May 2020
Updated
25 Jul 2023

Overview

VCA is an open-source printed circuit board by telec16, from the telec16/modular-synth repository on GitHub. It is a 2-layer board of 40 × 200 mm with 57 parts on 57 nets, routed with 306 tracks and 50 vias.

It is built around the TL082 and LM13700M. Its parts include 24 resistors, 7 connectors, 6 capacitors, 6 diodes and 5 ICs.

Main components

2

README

README.md

Telec's Modular Synth

Little side project, don't expect much updates.

List of stuff I want to make

0%10%20%50%65%70%75%80%100%
IdeaPOCSchematicLayoutArtworkFinal checkupProdTestsDone

Modules

  • VCO
    • 3340
    • Schmitt inverter
    • Opamp V1 100%
    • Opamp V2 75%
  • LFO
    • Hex Inverter
  • Sequencer
    • µC
    • random jazz generator 90%
  • Random generator
    • zener
    • µC
  • ADSR
    • Opamp 100%
  • VCA
    • LM13700 100%
    • Vactrol
  • Quantizer (CV correction)
    • µC 75%
  • VCF
    • ?
  • Drum kit
    • ???
  • Frequency multiplier/divider
    • CD4046 PLL V1 100%
    • CD4046 PLL V2 75%
  • Wavefolder
    • Bipolar 100%
    • Opamp 100%
  • CV Glider
    • RC circuit 100%
  • Scope
    • µC 75%

Instruments

  • MiniSynth 50%
  • MIDI I/O + CV Out keypad 5%

Releases

  • ADSR
  • CV Glider
  • VCA
  • Wavefolder
  • VCO
  • PLL

Parts

57
QtyValueFootprintReferences
6100nCapacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolderC1, C2, C3, C4, C5, C6
647kResistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolderR2, R3, R6, R13, R14, R17
4100ktelec:Potentiometer_Single_Vertical_HoleRV1, RV2, RV4, RV5
42k2Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolderR4, R5, R15, R16
4LEDLED_SMD:LED_1206_3216Metric_ReverseMount_Hole1.8x2.4mmD1, D2, D3, D4
4TL082Package_SO:SOIC-8_3.9x4.9mm_P1.27mmU2, U3, U4, U5
21kResistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolderR9, R20
21ktelec:Potentiometer_P3.81mmx5.12mm_VerticalRV3, RV6
21k5Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolderR23, R24
222kResistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolderR8, R19
24k7Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolderR1, R12
2LEDLED_SMD:LED_1206_3216Metric_CastellatedD5, D6
2Mounting_HolesKosmo_panel:Kosmo_Panel_Dual_Mounting_HolesH1, H2
110kResistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolderR18
1120kResistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolderR10
112kResistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolderR7
1150kResistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolderR21
1220kResistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolderR11
127kResistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolderR22
1CV1telec:Jack_Hole_SquareJ2
1CV2telec:Jack_Hole_SquareJ5
1EuroPowertelec:EuroPowerJ1
1IN1telec:Jack_Hole_SquareJ3
1IN2telec:Jack_Hole_SquareJ6
1LM13700Package_SO:SOIC-16_3.9x9.9mm_P1.27mmU1
1OUT1telec:Jack_Hole_SquareJ4
1OUT2telec:Jack_Hole_SquareJ7
1teleclogo:telec-16LOGO1

Questions

How big is the VCA PCB?

It measures 40 × 200 mm and has 2 copper layers, 1.6 mm thick.

What parts does the VCA use?

57 parts, built around the TL082 and LM13700M. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the VCA KiCad files?

From the telec16/modular-synth repository on GitHub, at the commit this page was made from: the board is VCA/VCA.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the VCA design in my own project?

Its repository states no licence, so its author keeps all rights: ask telec16 before reusing the design.

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