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Electric gadgetry
Build a 2-way telegraph, stoplight,
motori:z;ed car, boat, 21 other devices
Comes with over 100 parts
$
877
.. uses safe battery power
Tinkering is more fun when you can make toys and gad–
gets that actually work. Illustrated manual shows you
how to put together operating alarms, flashlight, bike
horn, magnet, crane, and many other relays demonstra–
ting principles of electricity. Includes
2
motors, working
Pllcllels, buzzer units, bulbs, wiring. Also screwdriver,
wrench, tweezers, nuts and bolts-even 2
"D"
batteries.
79
N
6427C-Shipping weight
5
pounds . .. .. Set $8. 77
Transistor ampliHer, synchronized wires and other
quality components make calls come through so
loud and clear you'd think it's a real phone.
Lift
receiver, buttons light up .. tap a button
-dual tones signal the person you're calling
TOUCH-TONE TELEPHONE
Set of two
$12
SS
~i/'.~i:,~
Modem push-button magic now comes to the children's telephone.
Matches its real counterpart in size, appearance ·and many of its
features. Sturdy housing molded of polystyrene plastic, 8
72
inches
long, with coiled vinyl cord. 30 feet of triple wires connects to each
phone with snap-in ease. Silver-contact carbon microphone and
dynamic earphone carry voice well enough to recognize caller im–
mediately. Made by a leading electronics firm in Japan. Operates for
many hours on 4 "C" batteries (order on facing page). Pick up your
phone right now and order this one!
49
N
6314- Blu·e Phone Set. Shipping wt. 3 lbs. 3 oz... ... $12.88
49
N
6315- Pink Phone Set. Shipping wt. 3 lbs. 3 oz.... . . 12.88
See radioactivity in action
ATOMIC ENERGY LAB
$6
44
100-watt bulb
not included
Simulates Nobel Prize experiments. Set
up atomic cloud ch&mber and watch vapor
trails of alpha and beta particles with pro–
jeetor illuminator. Build metal-housed
electroscope to detect radioactivity in the
air. Make a spinthariscope to gaze at
atomic disintegration of radium. Instruc–
tions. UL listed cord. 110- 120-v. AC.
49
N
6339-Wt.
2
lbs.
8
oz.: .Kit $6.44
Equipment for 30 projects
ELECTRICAL LAB
$7
88
without
battery
You build a mystery shock box, solenoid
coin tosser, rheostat, neon lamp tester, re–
lay, galvanometer, magnetizer, more.
In–
cludes a step-down transformer 'for safe
AC
power. Uses 1
"D"
battery, order on
facing pg. 110-120-v.
AC.
Unassembled.
49
N
6347-Wt.
2
lbs.
8
oz... Kit $7.88
Solve math electronically
ANALOG COMPUTER
$588
without
batteries
Multiplies, divides . . calculates powers,
roots, logarithms with amazing speed. Just
set up the problem on the scales of 2 linear
potentiometers, find the answer on scale
of 3rd potentiometer by watching sensi–
tive electric meter. 107\Jx6-in. cardboard
case, unassembled. 30-page manual. Order
2 "D" batteries on facing page.
49
N
6338-Shpg. wt. 15 oz.. Kit $5.88
Relays weather data indoors
WEATHER STATION
$744
Neon lights on indoor board show wind
speed and directjon. Wired electrically to
anemometer and. wind vane outside. 100
ft.
of wire. With barometer, rain gauge,
sling psychrometer, charts and manual.
110- 120-v.
AC.
Unassembled.
49
N
6415-Wt. 1lb.12 oz...Kit $7.44
"Hi,
Mary.
I got 17
gallons •.
what
did
you get?"