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Transistor clock

reivax-boucoi·PCB_Kicad·transistor_clock/transistor_clock.kicad_pcb

Transistor clock PCB layout, top view — open source board by reivax-boucoi
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About the Transistor clock PCB

Transistor clock is an open source PCB design by reivax-boucoi, published on GitHub. It is a 2-layer board measuring 327 × 95.8 mm, with 926 components from 38 distinct parts.

By type, the board carries 327 diodes, 327 resistors, 155 transistors, 95 capacitors, 15 test points and 2 jumpers.

From the project

Repo for all my home projects involving PCBs developped with Kicad

Transistor clock bill of materials (BOM)

926 components, 38 distinct parts — part numbers from the project's BOM.

QtyPartRefs
101
MMBT3904
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +93
53
MMBT5401
Q10, Q12, Q14, Q16, Q18, Q30, Q34, Q37 +45
1
VN3205
Q123
1
2mm
J2
2
VCC
JP1, JP2
2
1k
RV1, RV2
1
Heures
SW1
1
Minutes
SW2
4
GND
TP1, TP2, TP3, TP4
1
VCC
TP5
1
VD
TP6
1
Vref
TP7
1
50Hz
TP8
1
5Hz
TP9
1
1s
TP10
1
10s
TP11
1
1min
TP12
1
10min
TP13
1
1hr
TP14
1
24_rst
TP15
Show 18 more
QtyPartRefs
43
LED
D1, D2, D3, D4, D5, D6, D7, D63 +35
283
1N4148W
D8, D9, D10, D11, D12, D13, D14, D15 +275
1
3V3
D297
23
10u
C1, C2, C4, C7, C13, C15, C17, C19 +15
45
1n
C3, C8, C9, C10, C11, C12, C14, C16 +37
16
100n
C5, C6, C20, C21, C29, C30, C37, C38 +8
7
470u
C65, C66, C74, C75, C81, C82, C83
2
1u
C70, C71
1
10n
C77
1
220p
C78
1
3k9
R1
158
10k
R2, R3, R5, R7, R9, R11, R13, R15 +150
58
100k
R4, R6, R8, R10, R12, R14, R16, R40 +50
103
2k2
R19, R20, R22, R24, R26, R28, R30, R32 +95
1
4.7k
R234
3
1k
R236, R244, R261
1
22k
R253
2
DNP
R267, R269

Transistor clock design files

The KiCad project lives in the reivax-boucoi/PCB_Kicad repository on GitHub; these links point at the commit this page was built from.

Transistor clock: common questions

How big is the Transistor clock PCB?

The Transistor clock measures 327 × 95.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Transistor clock?

926 components, from 38 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 Transistor clock design files?

From the reivax-boucoi/PCB_Kicad 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 Transistor clock design in my own project?

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

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