Electronics-World-1959-05

www.americanradiohistory.com
A
SOUND
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BETTER
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SONORAMIC
RECORDING TAPE
in the permanent plastic container
Why settle for ordinary tape when
Sonoramic offers you so many exclusive
extras. By combining the
finest materials and processing
techniques with the highest
research and technicai skills Sono -
ramic brings you a magnificent tape
that will brilliantly reproduce the total
recordable frequency spectrum.
1. CASE: Shatterproof plastic contain.
er for permanent protection; stores anywhere
on wall, bookcase or table for easy
access.
2. REEL: V slot per.
mits jiffy self- threading.
Permanently imprinted
with Selection- Finder
and easy write -on
surface.
3. INDEXING: Case
includes pressure sensitive
front and side
labels. Permits typewritten
tabs of all
recordings.
FREE:
Fisher Radio Corponition. 21 -21 44th
Drive, Long Island City 1, N. Y. has
just released a new remote control
unit which permits stereo speaker
levels to be adjusted from anywhere in
the listening area.
The Model RK -1 is designed to be
used with the company's 400 -C Master
Audio Control and consists of a control
assembly, 30 feet of connecting
cable, and an adapter plug for connection
to the main unit. The adapter
plug is color -coded to simplify connections.
The control assembly may he held in
one hand and its two control knobs
rotated with the thumb or index finger.
In operating position, the knob on the
left regulates the level in the speaker
to the left of the listener and the right
knob controls the volume of the speaker
on the right. Each control has a
range of from zero level to full volume
as set on the 400 -C, permitting the
RK -1 control to be used to cut off the
volume completely on either channel.
The control is housed in an ivory
plastic case measuring 4" x 2t/a" x 14".
FISHER REMOTE CONTROL
AIR -CORE INDUCTORS
C c
Tape -time ruler indicates
footage and recordingtime.
Write Dept. N5
of air -core
4nanued CORPORATION,
// Lodi. New Jersey
M Coils, 3016 Holmes Avenue,
N. W., Huntsville, Alabama has announced
the availability of a new line
inductors for crossover
networks which is being offered in 80
values in #17 wire and 52 values in
#16 wire.
All of the inductors are oven baked,
calibrated, and spaghetti applied to the
7" tinned leads. The units are then cot-
ton wrapped, dipped in varnish, baked,
and rechecked. Inductors are supplied
with ± 10ri tolerance.
The inductors available in No. 17
Formvar copper wire range in value
from .05 mhy. to 12 mhy. The No. 16
Formvar copper wire units have inductances
ranging from 5 to 20 mhy.
The company will forward a copy
of its brochure on request. Complete
electrical and physical specs are provided
on each inductor.
UNITED AUDIO'S CHANGER
United Audio Products, 2024 E. 19th
Street, New York 3, N. Y. has entered
the changer field with a combination
professional 4 -speed turntable and deluxe
record changer.
The Dual -1006 will track and operate
the automatic cycling mechanism
with as low as 2 grams stylus pressure.
The unit includes a built -in direct -
reading pressure gauge to insure optimum
cartridge operation and long
record life.
The 54-pound turntable is laminated
and concentrically girded to retain
dynamic balance and plano surface.
The powerful motor enables the
turntable to reach full speed within
second from dead start. The motor
uses a new rigid equipoise suspension
principle which eliminates vertical
rumble.
A one -piece tonearm, employing a
lock -key snap -in cartridge holder and
double set of direct acting ball bearings
for both vertical and horizontal
axes, avoids multiple arm resonance
and minimizes cartridge vertical amplitude
distortion. The new design of
the arm achieves perfect vertical and
lateral tracking at all times by maintaining
a constant 90- degree relationship
between arm pivot axis and cartridge
axis, according to the company.
The "stereo-mono" switch includes
a phase -cancelling feedback circuit
which removes vertical noise signals
that result when monophonic records
are played with stereo cartridges.
The changer mechanism will operate
with any diameter record from 5" to
12" and intermixes ten records in any
88 ELECTRONICS WORLD
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