- Published in issue 11/2019 on page 66
Improved Radiation Meter — Improved!
a hardware update for the alpha, beta and gamma counter
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.
Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.
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.
All 5%, 0.25W, 250V
R1 = 1MΩ
R2 = 1kΩ
R3,R14 = 10MΩ
R4 = 4.7kΩ
R5,R7 = 10kΩ
R6,R8 = 330kΩ
R9 = 470Ω
R10,R12 = 220Ω
R11 = 100Ω
R13 = 5.6Ω
P1 = 10kΩ trimpot, horizontal
C1,C2,C3,C9 = 100nF, 50V, X7R, 0.2’’ pitch
C4,C5 = 47pF, 50V, C0G/NP0, 0.1’’ pitch
C6,C7 = 100µF, 50V, 3.5mm pitch, 8x11mm
C8 = 10µF, 50V, 2mm pitch, 5x11mm
D1 = BPW34, straight
D2 = 1N4004
LED1 = 5mm diam.
T1 = BF256B
IC1 = ATMega88PA-PU (programmed, Elektor Store # 110538-41)
IC2 = LM358
IC3 = 78L05
Bz1 = piezo buzzer, 12mm, 1-3Vpp, 2.04kHz fres, 6.5mm
IC1 = IC socket, DIP-28 narrow
IC2 = IC socket, DIP-8
K1.K2 = 1x3 pinheader, straight, 0.1’’ pitch
K3 = 1x6 pinheader, straight, 0.1’’ pitch
K4 = 1x2 pinheader, straight, 0.1’’ pitch
K5 = 2x3 pinheader, straight, 0.1’’ pitch
K6 = 12V, 3A DC power connector, 1.95mm pin, (Lumberg NEB 21R)
LCD1 = LCD module, 2x16, Elektor Store # 120061-74 (+ 16-pin pinheader, straight, 0.1'' pitch)
Mounting material for LCD1
S1 = pushbutton, PCB mount, 6x6mm
S2 = slide switch, PCB mount, right angled, 0.1’’ pitch, (Würth Elektronik # 450302014072)
PCB no. 110538-1 v2.2