Precise Nixie Clock
Gerber file
CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.
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Components
The BOM (Bill of Materials) is the technically exhaustive listing of parts and other hardware items used to produce the working and tested prototype of any Elektor Labs project. The BOM file contains deeper information than the Component List published for the same project in Elektor Magazine. If required the BOM gets updated directly by our lab engineers. As a reader, you can download the list here.
Want to learn more about our BOM list? Read the BOM list article for extra information.
Component list
Resistors
R1,R2,R4,R5,R6,R7,R9,R10,R11,R14,R15,R18,R19,R20,R21,R22 = 10kOhm
R3,R13 = 470kOhm
R8 = 3.3kOhm
R12 = 1kOhm
R16 = 150Ohm
R17 = 5.6kOhm
P1 = 500kOhm trimpot, horizontal
Capacitors
C1 = 2.2µF 25V, 2mm pitch
C2,C4,C5,C6,C7,C13,C14,C15 = 100nF
C3 = 470pF, Y5P, 0.1” pitch
C8,C9 = 22pF, C0G/NP0, 0.1” pitch
C10 = 10µF 250V, radial, 5mm pitch (Panasonic ECA2EHG100)
C11,C12 = 100µF 25V, radial, 3.5mm pitch
Inductor
L1 = 330µH 900mA, radial (10mm diam., 15mm height)
Semiconductors
D1 = BYV26 (ultrafast diode, 600 V/1 A)
D2 = 1N4007
LED1 = LED, red, 3mm
T1,T2,T3,T4 = MPSA42 (300V/ 500mA)
T5 = IRF820 (N-MOSFET, 500V/2.5A)
T6,T7 = 2N7000 (N-MOSFET, 60V/200mA)
IC1,IC2,IC3 = K155ID1 (74141)
IC4 = PIC18F2480-I/SP (programmed, # 140013-41)
IC5 = LP2950-33LPE3
IC6 = MC7805
IC7 = MC34063
Miscellaneous
V1,V2,V3,V4 = IN-14 nixie tube
LA1 = wired neon lamp
X1 = 22.1184 MHz quartz crystal
MOD1 = A2035H GPS module met internal antenna (Maestro Wireless Solutions)
JP1,JP2,JP3 = 2-pin pinheader, 0.1” with jumper (JP3 optional)
K1 = 6-pin pinheader, 0.1” pitch
K2 = 2-way PCB screw terminal block, 0.2” pitch
S1 = pushbutton, PCB mount, 6x6 mm (optional)
PCB # 140013-1, see [1]
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