Low-Impact Muscle Simulator
with treatment programs
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,R4-R12,R15,R16 = 1k?
R2,R3,R14 = 4k?7
R13 = 22k?
R17 = 10k?
P1 = 50k? linear potentiometer
Capacitors:
C1 = 100nF
C2 = 10µF 63 V radial
C3,C4 = 33pF
C5 = 47µF 25V radial
C6,C7 = 100µF 16V radial
Semiconductors:
D1-D4 = high-efficiency-LED, red (3 mm)
D5 = 1N4001
D6 = 1N4148
D7,D8 = zener diode 39V/0.4W
T1,T2 = BUZ11 (BUZ10, BUZ100)
T3 = BD140
IC1 = 89C2051-12PC (programmed), order code 000041-41
IC2 = 7805 (or LM2940T-5, 4805)
Miscellaneous:
S1-S4 = Digitast pushbutton (ITT/Schadow)
S5 = on/off switch
Tr1 = 100-V line output transformer 0-4-16 ?/20 W (Conrad Electronics or Monacor/Monarch)
X1 = 12 MHz quartz crystal
LD1,LD2 = HD1131O
Enclosure: e.g., TEKO 160x95x61 mm
PC1-PC4 = miniature wander sockets
Disk, project software (source code and hex code): order code 000041-11
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