Quartz Crystal Tester
Materials
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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Component list
R1 = 22kOhm
R2 = 1 kOhm (corrected value w.r.t. printed edition)
R3 = 680Ohm (corrected value w.r.t. printed edition)
Capacitors
C1 = 1nF
C2 = 100pF
C3 = 2nF2
C4 = 10nF
C5 = 100nF
Semiconductors
D1, D2 = 1N4148
T1 = BF494
T2 = BC547
LED1 = LED
Miscellaneous
Socket for HC6/U and/or HC 18/U type xtal
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