ΚΑΤΑΣΚΕΥΗ ΨΗΦΙΑΚΟΥ WATT METER

ΠΑΡΑΚΑΤΩ ΣΧΕΔΙΑΓΡΑΜΑΤΑ , PCB ΚΑΙ ΛΙΣΤΑ ΥΛΙΚΩΝ

8,5 X5,5CM

PARTS Component list

Component list for the Digital Wattmeter

C12 1nF 50V NP0 SMD 0805
C13 8p2F 100V NP0 SMD 0805
C14 100nF 50V X7R SMD 0805
C15 100nF 50V X7R SMD 0805
C16 100nF 50V X7R SMD 0805
C17 100nF 50V X7R SMD 0805
C18 100nF 50V X7R SMD 0805
C19 100nF 50V X7R SMD 0805
C20 100nF 50V X7R SMD 0805
C21 100nF 50V X7R SMD 0805
C22 100nF 50V X7R SMD 0805
C23 100nF 50V X7R SMD 0805
C24 10uF-100uF 16-25V lyt Do not use tantal type

R14 47R 1% SMD 0805
R15 (33R) 3 pcs. 100R 2% SMD 1206 250mW
R16 33R 2% SMD 1206 250mW paralled with 39R 2% SMD 1206 250mW
R17 68R 1% SMD 0805
R18 10k 1% SMD 0805
R20 47k 5% SMD 0805
R21 1k 1% SMD 0805
R22 1k 1% SMD 0805
R26 1k 1% SMD 0805
R27 1k 1% SMD 0805
R28 120k 1% SMD 0805
R29 180k 1% SMD 0805
R30 10R 5% ¼ W
R33 100R 1% SMD 0805
R31 470k 5% SMD 0805

D1 1N4148 / BAS32L SMD
IC1 PIC16F876-04/SP from Microchip
IC2 LM7805 Regulator
IC3 AD8307AR From Analog Devices
X1 4Mhz Resonator Murata CSTCC 4.00MG-TC or any 4 Mhz resonator or

crystal
Encoder: 3315Y-1-016 Bourns or similar 10 to 16 pulse / rotation
Display: PC2002LRS-BEA-C from Powertip or GPC202-555-NYPBSLY from

GPO
Printed Circuit Board PCB (ELEKTOR NUMBER ???)
You need extra:
Connector BNC, or N, ot SMA, I prefer BNC for fast and easy opperation.
IC sokket 28 pin for PIC if not soldered in.
MAX232 with caps and regulator if the serial output option is needed.
Push buttons two pcs. for menu and select, and on/off switch
Box, homemade in glasfiber board or fancy metal box, use what ever you like,

or have on stock.