Electronics-World-1959-05

www.americanradiohistory.com
' _
selected by Leak`-
Heathkit, Dynaco
and other
,',fling man,' fact urers.
I
HIGHER POWER,
1 LOWER DISTORTION,
I EXTRA LONG LIFE!
.
Elements built
and aligned to closest
engineering tolerance.
Mounts vertically.
horizontally, angularly.
32 watts output in ultra
linear circuit with less than
2 %. total harmonic distortion
without feedback.
50 watts output in class AB.
Control grid of extra heavy
copper rods for rigidity.
alignment of elements and
superior heat dissipation.
Oversize glass envelope.
Operates at higher
working voltages.
Unconditionally
guaranteed.
s
11111111 g i
INSIST ON THE ORIGINAL KT66 BY
four mike inputs. At 15 ips, frequency
response is 30 to 30,000 cps ±2db with
flutter and wow .06% and noise ratio
57 db; at 7.5 ips the figures are 20-
20,000 cps -*2 db, .08% and 54 db;
while at 3.75 ips response is from 20 to
11,000 cps ±3 db, .8%, and 51 db.
Write the manufacturer direct for
complete specifications on this stereo
recorder.
AUDIO CATALOGUES
TUNER MEASUREMENTS
The Institute of High Fidelity Manufacturers,
125 E. 23rd Street, New
York, N. Y. has just released copies of
its "Standard Methods of Measurement
for Tuners" which is described as the
first in a comprehensive program of
measurement standards for component
hi -fi equipment.
Prepared by the Institute's Standard
Committee in booklet form, the
standard defines FM and AM terms,
operating conditions, requirements and
characteristics of testing apparatus,
FM and AM test procedures, and test
procedures for AM -FM tuners.
The Subcommittee on Tuners was
chairmanned by Daniel von Recklinghausen
of H. H. Scott, Inc.
Copies of the standard are available
from the Institute at a $1.00 a copy.
BRITISH INDUSTRIES CORP., PORT WASHINGTON. N. Y. DEPT.
From the pioneer in ceramics for electronics
L°JnERI E -o
the new single
XE-/9
c eramic element
Stereophonic
cartridge
DYNAMIC BALANCING MAKES THE DIFFERENCE
DYNAMIC BALANCING during manufacture provides full stereo reproduction.
SINGLE ELEMENT DESIGN offers balanced outputs; excellent
separation of 20 db over full audio -frequency range, with equal outputs
from both channels. Compatible with stereo and monophonic discs.
SPECIFICATIONS
RESPONSE: 20 to 16,000 cps. OUTPUT VOLTAGE: 0.5 vrms at I KC each channel. COMPLIANCE:
3 x 10 "6 cm /dyne, vertical & lateral. RECOMMENDED LOAD: 2 megohms. RECOMMENDED
TRACKING PRESSURE: 5.6 grams. CHANNEL SEPARATION: 20 db. STYLII: Dual tip; 0.7 mil diamond
or sapphire, and 3 mil sapphire. MOUNTING DIMENSIONS: EIA Standard Via" & 1/2 " centers.
94
For additional information, see your Authorized ERIE Distributor
ERIE RESISTOR CORPORATION
MAIN OFFICES: ÉRIE, PA. U. S. A.
"STEREO SIMPLIFIED"
The high -fidelity stereophonic reproduction
of music in the home is clearly
explained in the new booklet "Stereo
Simplified" just released by Sonotone
Corporation of Elmsford, N. Y.
The booklet explains, in layman's
language, the entire process of stereo
recording and reproduction. It is designed
to help those who are interested
in purchasing new stereo equipment
as well as music lovers planning to convert
present monophonic sets.
The company's hi -fi dealers will supply
copies of this booklet without
charge upon request.
"STEREO AND YOU
Pilot Radio Corporation, 37 -50 36th
Street, Long Island City 1, N. Y. has
just published a new booklet entitled
"Stereo and You" which is available
for the asking.
In this publication the company has
endeavored to answer the questions
that dealers and the public have been
confronted with since the introduction
of stereophonic sound.
BROCHURE ON STEREO
The Consumer Products Division of
Hoffman Electronic Corporation, 3761
S. Hill St., Los Angeles 7, Calif. is offering
a four -page, illustrated brochure
on stereophonic hi -fi.
The two -color booklet also offers
cabinet design and technical information
on the firm's 1959 line of stereo
consoles and companion stereo speaker/
amplifiers.
Those wishing a copy of this new
booklet, "Stereo-Fi," should address
their requests to Dept. K of the company.
ELECTRONICS WORLD