Parts list, Parts identification, Identifying resistor values – Elenco Nerve Tester User Manual
Page 2: Batteries

PARTS LIST
If you are a student, and any parts are missing or damaged, please see instructor or bookstore.
If you purchased this nerve tester kit from a distributor, catalog, etc., please contact ELENCO
®
(address/phone/e-mail is at the back of this manual) for additional assistance, if needed.
Parts Verification
Before beginning the assembly process, familiarize yourself with the components and this instruction book.
Verify that all of the parts are present. This is best done by checking off each item in the box provided next to
the part in the parts list.
RESISTORS
Qty.
Symbol
Description
Color Code
Part #
r 1
R1
470
Ω 5% 1/4W
yellow-violet-brown-gold
134700
r 1
R2
47k
Ω 5% 1/4W
yellow-violet-orange-gold
154700
SEMICONDUCTORS
Qty.
Symbol
Description
Part #
r 1
SCR1
SCR C106B
319106
r 1
D1
Diode LED red
350002
MISCELLANEOUS
Qty.
Symbol
Description
Part #
r 1
T1
Transformer
442100
r 1
P1
Double Sided PC Board
510320
r 1
PC Board
518020
r 1
S1
Switch Push Button
540100
r 1
S2
Switch Slide
541102
r 1
Solder Roll 24”
551124
r 1
B1
Battery Snap
590098
r 2
Wire 9”
814920
r 1
H1
Wire 9” Bare
845000
-1-
Resistor
Transistor
PARTS IDENTIFICATION
Battery Snap
LED
Switches
SCR
Slide
Push Button
Transformer
IDENTIFYING RESISTOR VALUES
Use the following information as a guide in
properly identifying the value of resistors.
BANDS
1
2
Multiplier
Tolerance
PC Board
Double Sided
PC Board
OR
• Do not short circuit the battery
terminals.
• Never throw batteries in a fire
or attempt to open its outer
casing.
• Use only 9V type, alkaline
battery (not included).
• Insert battery with correct
polarity.
• Do not mix alkaline, standard
(carbon-zinc), or rechargeable
(nickel-cadmium) batteries.
• Non-rechargeable batteries
should not be recharged.
Rechargeable batteries should
only be charged under adult
supervision, and should not be
recharged while in the product.
• Remove the battery when it is
used up.
• Batteries are harmful if
swallowed, so keep away from
small children.
Batteries: