Datasheet
17
20-233
4" UNIVERSAL REPLACEMENT
SPEAKER
Heavy duty ceramic type magnet.
Specifications:
Impedance................................ 8W
Power ................................ 2 watts
Size...4” (W) 3
1
/2“ (mount center) 1
7
/16“(D)
Cone..................................... Paper
20-232
3
1
/2" SQUARE FRAME PRECISION
MADE SPEAKER
Superior quality with high efficiency. For
general replacement use. Rugged frame
construction, selected cone for fine
reproduction.
Specifications
Impedance................................ 8W
Power ................................ 2 watts
Frequency Response.. 100-10KHz
Size3
1
/2”(W) X 4
5
/16”(mount center)1
3
/16””(D)
*Special Order Only
20-301
3" 45 ohm 2 watt SPEAKER
Excellent quality, used for many types
of radios and intercoms. Mylar
waterproof cone.
Specifications
Impedance.............................. 45W
Power ................................ 2 watts
Size.............. 3” width, 1
3
/16“ depth
Cone..................................... Paper
20-231
3" SQUARE FRAME PRECISON
MADE SPEAKER
Superior quality with high efficiency
performance. Will improve tone quality of
most radios or intercoms.
Specifications
Impedance................................ 8W
Power ................................ 2 watts
Frequency Response. 100-10 KHz
Size 3” (W), 3
1
/2
“ (mount center) 1
1
/4
“ (D)
Cone..................................... Paper
*Special Order only
20-298 BEAUTIFUL WHITE
ENAMEL CEILING GRILL
8-inch speaker mounts to baffle by
four nuts supplied. Mounts directly to
ceiling or wall by wood screws,
toggle bolts or mollys.
Size: 1
7
/8" in diameter
20-218
8" BACKGROUND MUSIC
SPEAKER (with white ceiling
grill)
Ideal for ceilings and wall mounting.
Complete with 12
3
/4
" dia. grill and 10
watt, 25 volt line transformer (10 oz.
magnet).
70 volt available upon request.
20-218VC Same as 20-218, with
volume control mounted in center
of grill.
20-280
COMMUNICATION SPEAKER
Used with CB radio, ham and general
purpose communications. Made of high
impact plastic for durability. Comes
with mounting bracket and 6 ft. cord
with molded 3.5mm plug. Color: Black.
Specifications
Impedance................................ 8W
Power.......................... 5 watts max
Frequency Response.... 150-4KHz
20-250
WHISPER PILLOW SPEAKER
Inaudible except to the user. Low
impedance type employing bone
conduction principle, amazing fidelity
bypassing the ear. Transmits sound
to inner ear by direct contact.
Connects to the voice coil side of
output transformer, 3.5 mm plug. 6
foot cord. White color.
CALRAD
20 Series - Speakers
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