HardLabs

PassiveAttenuator

schenkzoola·Attenuator·PassiveAttenuator/PassiveAttenuator.kicad_pcb

PassiveAttenuator PCB layout, top view — open source board by schenkzoola

About the PassiveAttenuator PCB

PassiveAttenuator is an open source PCB design by schenkzoola, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 15 × 100 mm, with 6 components from 2 distinct parts.

It belongs with the audio designs in this gallery.

From the project

A 3HP Eurorack dual passive attenuator from Schenktronics. It has two channels, each with an input, an output and a level knob. The second input is normalled to the first, so one signal can be sent out at two different levels. It needs no power.

A 3HP Eurorack dual passive attenuator from Schenktronics. It has two channels, each with an input, an output and a level knob. The second input is normalled to the first, so one signal can be sent out at two different levels. It needs no power.

- 3HP Eurorack, 15 mm deep, and it needs no power - Two channels, each turning a signal down from full level to off - In 2 is normalled to In 1: one input, two outputs at independent levels - Works on audio, CV, gates and bipolar signals - The whole kit is through-hole, with 22 solder joints

PassiveAttenuator, from the project README
From the project README

PassiveAttenuator bill of materials (BOM)

6 components, 2 distinct parts — part numbers from the project's BOM.

QtyPartRefs
4
AudioJack2_SwitchT
QingPu
J1, J2, J3, J4
2
P0915N-FC15BR100K
R_POT
TT Electronics/BI
RV1, RV2

PassiveAttenuator design files

The KiCad project lives in the schenkzoola/Attenuator repository on GitHub; these links point at the commit this page was built from.

PassiveAttenuator: common questions

How big is the PassiveAttenuator PCB?

The PassiveAttenuator measures 15 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PassiveAttenuator?

6 components, from 2 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 PassiveAttenuator design files?

From the schenkzoola/Attenuator repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the PassiveAttenuator design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

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