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DEitW

velvia-fifty·AudioThings·Workshop/DEitW/DEitW.kicad_pcb

DEitW PCB layout, top view — open source board by velvia-fifty
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About the DEitW PCB

DEitW is an open source PCB design by velvia-fifty, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 100 × 100 mm, with 98 components from 25 distinct parts.

Other key parts include the 4070, 4015 and TLC555xD. By type, the board carries 34 diodes, 21 connectors, 9 transistors, 6 ICs and 4 resistors.

It belongs with the audio designs in this gallery.

From the project

DIY audio-related projects of questionable quality and dubious utility; delivered in 30 minutes or less or the next one is free

You know what really chaps my ass? When I spend hours tweaking a knob and FINALLY It's just right, It never needs to be touched again because the demons in charge of such things will prevent me from getting it just right ever again.

AND THEN THE KNOB HAS THE AUDACITY TO CONTINUE TO EXIST!? LIKE COME ON!!!

Sometimes that [redacted] I just popped wasn't [redacted] and if I'm gonna be tweaking for the next 32 hours I don't want to lose all that progress. SIX ADSR Envelopes, TWELVE turns per pot; I can't math good but that's got to be at least a few hundred unique types of bloop per bleep.

Main components on the DEitW

40704015TLC555xD

DEitW bill of materials (BOM)

98 components, 25 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
4070
TLC555xD
U1
2
4015
TLC555xD
U3, U5
3
TLC555xD
U6, U8, U9
9
BC847BDW1
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +1
1
B2B_CONN
OPT EURO
J2
1
1-0401FBV0T
USB
TAD
J4
1
Audio In
J5
1
Audio Out
J6
1
UART
J7
1
I2C
J8
1
AudioJack3_SwitchT
J9
1
EXT_INTERFACE_1
J11
12
Stereo Jack - SMD HZ
J12, J13, J15, J16, J17, J18, J19, J20 +4
1
Daughter
J14
8
PTV09 Pot HZ
RV4, RV21, RV22, RV23, RV24, RV25, RV26, RV27
16
Trim Pot V
RV5, RV6, RV7, RV8, RV9, RV10, RV11, RV12 +8
1
1N4148WS
5V OK
D1
1
1N4148WS
12V OK
D2
1
-12V OK
D3
1
PRSNT
D4
Show 5 more
QtyPartRefs
24
1N4148WS
D5, D6, D7, D8, D9, D10, D11, D12 +16
6
LED
D13, D14, D15, D16, D25, D26
1
100K
150
R1
2
10K
500
R2, R3
1
33K
150
R4

DEitW design files

The KiCad project lives in the velvia-fifty/AudioThings repository on GitHub; these links point at the commit this page was built from.

DEitW: common questions

How big is the DEitW PCB?

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

How many components are on the DEitW?

98 components, from 25 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 DEitW design files?

From the velvia-fifty/AudioThings repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the DEitW 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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