ECG simulator
an analogue waveform generator
Materials
Gerber file
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Component list
R1 = 1M?
R2 = 3k?9
R3,R4,R12 = 100k?
R5 = 18k?
R6 = 680k?
R7 = 330k?
R8 = 3k?3
R9 = 2k?2
R10 = 47k?
R11 = 560k?
R13,R14 = 10k?
R15 = 150?
Capacitors:
C1 = 82pF
C2 = 22pF
C3 = 220nF 5mm pitch
C4 = 470nF 5mm pitch
C5,C6 = 330nF 5mm pitch
C7 = 100nF 5mm pitch
Semiconductors:
D1,D2,D4 = 1N4148
D3 = LED, high efficiency
D5 = zener diode 3 V / 400 mW
IC1 = 4521
IC2 = 4017
Miscellaneous:
S1 = slide switch, 2-pole chanegover (Conrad Electronic o/n 708097)
BT1 = 9-V PP3 battery with clip-on leads
X1 = 4.194304 MHz quartz crystal
Enclosure 60x95x23 mm (Conrad Electronic o/n 522864)
3 wander (banana) sockets (2 mm or 2.6 mm)
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