educational materials - SPECTRUM Nasco Shopping Mall Divisions

1. 2.
Tuning Fork Set
Set of 13 tuning forks with the frequency
and scale letter stamped on each fork.
Made of aluminum alloy. Sh. wt. 0.40 kgs.
SB29986M — $35.25
Physical Science
Nature of Sound
Digital Sound Meter with Jumbo Display
This small, handheld unit features a large digital
display and an analog bar graph for making
high performance sound measurements. Calculate the
range automatically or manually. Provides A or C
frequency weighting and fast or slow time weighting.
Also features min/max memory with max hold, auto
power off, and low battery indicator. Measurement
range: 40-130 dB in 10 steps. Measurement
accuracy: ±2. Includes windshield ball.
9" x 2-1⁄4" x 1-3⁄4". Requires four “AAA”
batteries (included). Sh. wt. 0.50 lbs.
SB49326M — $118.95
1. Aluminum Alloy Tuning Forks
Made of 3 /8" x 1" bar stock with smooth, aluminum-turned handles approximately 1¾"
long. These nonmagnetic tuning forks require no plating and will not rust or corrode.
The scale letter and frequency is stamped on each fork. Accurately tuned within ±.5%
at 20° C. Lightweight, the forks weigh 1 /3 that of steel forks. Class A-3, tuned to Physical
Scientific (C-256). Sh. wt. 0.91 kgs.
Cat. No. Frequency Note Sh. wt. Price
SB14260M 100 —— 0.17 kgs. $6.85
SB14261M 128 C 0.17 kgs. $6.85
SB14262M 256 C’ 0.17 kgs. $6.85
SB01312M 288 D’ 0.06 kgs. $6.85
SB14263M 320 E’ 0.14 kgs. $6.85
SB01313M 341.3 F’ 0.06 kgs. $6.85
SB14264M 384 G’ 0.14 kgs. $6.85
SB01314M 426.7 A’ 0.06 kgs. $6.85
SB01315M 480 B’ 0.06 kgs. $6.85
SB14265M 512 C” 0.11 kgs. $6.85
SB14266M 1024 C’’’ 0.14 kgs. $6.85
SB14267M 2048 C’’’’ 0.09 kgs. $6.85
SB14268M 4096 C’’’’’ 0.09 kgs. $6.85
Tuning Forks — Set of 4. Includes the
following frequencies and scale letters:
256, C’; 320, E’; 384, G’; and 512, C”. Sh. wt.
0.14 kgs.
SB16561M — $12.50
Tuning Forks — Set of 8. Includes the following
frequencies and scale letters: 256,
C’; 288, D’; 320, E’; 341.3, F’; 384, G’; 426.7,
A’; 480, B’; and 512, C”. Sh. wt. 0.48 kgs.
SB16562M — $19.65
Tuning Fork Activator
Protect your tuning forks as well as your
desk from nicks and scratches. Made of
solid rubber. Measures 2½" long. Black.
Sh. wt. 0.11 kgs.
SB39153M — $3.55
Set of 8 Tuning Forks with Mallet.
Includes Tuning Forks — Set of 8
(SB16562M, above) and Mallet (SA01602M,
below). Sh. wt. 0.88 lbs.
SB48580M— $20.20
2. 7-Frequency Adjustable Tuning Fork
Weights adjust to deliver fine tones in C128, D144, E160, F170.7, G192, A213.3, B240
frequencies. Scale letters clearly defined on stem. Precision-grade aluminum. 8” overall
length. Sh. wt. 0.14 kgs.
SB14269M — $11.65
Mallet
1" dia. hard rubber ball, ¼" wooden
handle, length 8". Sh. wt. 0.09 kgs.
SA01602M — $2.70
Resonance Apparatus
Data needed to determine wavelengths and velocity of
sound can be easily and accurately obtained with this
apparatus. Consists of a 90 cm graduated glass resonating
tube. The end of the tube is connected to an aluminum
reservoir which slides along a vertical support rod to raise
the water level to any level. The tube is of sufficient length
to produce resonances for ¼, ¾, and 5 /4 wavelengths of
a 512 VPS tuning fork. Complete with instructions for
assembly and use. Sh. wt. 3.29 kgs.
SB16555M — $95.15
Resonant Tuning Forks Set
This unit is designed to demonstrate the
resonance of sound. It includes a pair of
chromium-plated carbon steel tuning forks
of 440Hz mounted on wooden resonance
boxes. Includes a rubber hammer.
Sh. wt. 0.91 kgs.
SA01604M — $91.35
www.education.spectrum-nasco.ca
Wave Demonstrator Set
The 4-ft. Slinky Spring with three times the normal length is ideal for demonstrating
several fundamentals of wave motion. When the spring is extended to 30 ft., a lateral or
longitudinal pulse can be observed in detail as it travels at the slower rate corresponding
to low tension. By comparison, the longer and heavier 6-ft. helical spring demonstrates
the effects of greater mass and of greater tension. Another interesting experiment
is to join the two springs in line, stretch them, and observe the behavior of a pulse
from either end as it travels through the joint. Sh. wt. 1.27 kgs.
SB13636M — $17.95
4-ft. Slinky Spring.
Sh. wt. 0.37 kgs.
SB13633M — $6.10
6-ft. Helical Spring.
Sh. wt. 0.82 kgs.
SB13634M — $12.60
Super Slinky ®
and Stand
This extra long
Slinky ® spring
(stands 13 cm high
when compressed)
allows students
more time to observe
wave behavior.
The concern over
tangling during use
or storage is solved with the included
stand.
Sh. wt. 1.33 kgs.
SB39354M — $46.40
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