- on Home & Garden
- Published in issue 4/2000 on page 0
Low-Impact Muscle Simulator
with treatment programs
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CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor 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.
R1,R4-R12,R15,R16 = 1k?
R2,R3,R14 = 4k?7
R13 = 22k?
R17 = 10k?
P1 = 50k? linear potentiometer
C1 = 100nF
C2 = 10µF 63 V radial
C3,C4 = 33pF
C5 = 47µF 25V radial
C6,C7 = 100µF 16V radial
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)
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