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2 layers128.5 × 84.8 mmAdsr-3310, the printed circuit board in 3D

8 HP voltage controlled envelope generator

Size
128.5 × 84.8 mm
Copper layers
2
Thickness
1.6 mm
Parts
79
Nets
43
Pads
179
Tracks, vias
257, 19
Pours
2
Routed
Yes
KiCad
KiCad 6 (file 20211014)
Created
15 Mar 2022
Updated
23 Oct 2024

Overview

Adsr-3310 is an open-source printed circuit board by backtail, from the backtail/vcadsr-3310 repository on GitHub. It is a 2-layer board of 128.5 × 84.8 mm with 79 parts on 43 nets, routed with 257 tracks and 19 vias.

It is built around the LM358. Its parts include 18 resistors, 9 capacitors, 8 connectors, 3 ICs and 2 switches. It belongs with the audio and music boards of this library.

Main components

1

README

README.md

vcadsr 3310

8HP Eurorack module

Voltage Contralled Envelope Generator

Render

Pots

Rregular ADSR behaviour

Jacks

  • arrows: gate input
  • env out: regular envelope
  • inv env: inverse envelope

Switches

  • speed: up = fast, down = slow
  • offset: up = inv env between -5V and 0V, down = inv env between 0V and 5V

Footprints Libraries

Use provided submodule folder to link footprints locally in the project

  • OS_Connectors
  • OS_Scribbles

Parts

79
QtyValueFootprintReferences
10 component-library:alien_small , , , , , , , , ,
6100nFCapacitor_SMD:C_1206_3216MetricC1, C2, C3, C4, C5, C6
5100kResistor_SMD:R_1206_3216MetricR1, R4, R13, R14, R18
310k logPotentiometer_THT:Potentiometer_Alps_RK09K_Single_VerticalRV1, RV2, RV5
3470kResistor_SMD:R_1206_3216MetricR3, R6, R20
34k7Resistor_SMD:R_1206_3216MetricR2, R5, R19
3[0V,-240mV]TestPoint:TestPoint_Pad_1.0x1.0mmAttack, Decay, Release
2SW_SPDTcomponent-library:STMS-102-Micro_Toggle_Switch_SPDTSW2, SW3
1100kPotentiometer_SMD:Potentiometer_Bourns_TC33X_VerticalRV4
1100k linPotentiometer_THT:Potentiometer_Alps_RK09K_Single_VerticalRV3
110kResistor_SMD:R_1206_3216MetricR9
1140kResistor_SMD:R_1206_3216MetricR12
12.5VTestPoint:TestPoint_Pad_1.0x1.0mm2.5V
120kResistor_SMD:R_1206_3216MetricR7
12k7Resistor_SMD:R_1206_3216MetricR16
130kResistor_SMD:R_1206_3216MetricR8
139nFCapacitor_SMD:C_1206_3216MetricC9
13nFCapacitor_SMD:C_1206_3216MetricC7
1470Resistor_SMD:R_1206_3216MetricR17
156kResistor_SMD:R_1206_3216MetricR15
168nFCapacitor_SMD:C_1206_3216MetricC8
1ADSRTestPoint:TestPoint_Pad_1.0x1.0mmADSR
1AS3310Package_DIP:DIP-16_W7.62mm_SocketU3
1BlueLED_THT:LED_D3.0mmD1
1CV Attackcomponent-library:PJ-392J1
1CV Decaycomponent-library:PJ-392J3
1CV Gatecomponent-library:PJ-392J4
1CV Releasecomponent-library:PJ-392J8
1CV Sustaincomponent-library:PJ-392J7
1Envelopecomponent-library:PJ-392J5
1Inverse Envcomponent-library:PJ-392J6
1LM358Package_SO:SOIC-8_3.9x4.9mm_P1.27mmU1
1LOGOfrontpanel:adsr-3310G***
1PowerConnector_IDC:IDC-Header_2x05_P2.54mm_VerticalJ2
1TL074Package_SO:SOIC-14_3.9x8.7mm_P1.27mmU2
1[0V,5V]TestPoint:TestPoint_Pad_1.0x1.0mmSustain
1inv. ADSRTestPoint:TestPoint_Pad_1.0x1.0mmADSR

The 64 most common of 79 parts.

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Questions

How big is the Adsr-3310 PCB?

It measures 128.5 × 84.8 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Adsr-3310 use?

79 parts, built around the LM358. 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 Adsr-3310 KiCad files?

From the backtail/vcadsr-3310 repository on GitHub, at the commit this page was made from: the board is KiCad_Project/adsr-3310.kicad_pcb and its schematic KiCad_Project/adsr-3310.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Adsr-3310 design in my own project?

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