Stromberg-Carlson 360 Engineering Data

Engineering Data
Stromberg-Carlson No. 360 Radio Receivers
STROMBERG-CARLSON TELEPHONE MANUFACTURING COMPANY
ROCHESTER, NEW YORK
ELECTRICAL SPECIFICATIONS
Type of Circuit_
Tuning Ranges_
Number and Type of Tubes_
Voltage Rating_
Power Frequency Rating_
Input Power Rating_
Frequency of Intermediate Amplifier
_Superheterodyne with A. F. C. Electric Tuning
.A—530 to 1700 Kc.; B—1700 to 5600 Kc.; C—5600 to 18,000 Kc.
( 2 No. 6K7,1 No. 6A8,1 No. 6F8-G, 1 No. 6B8,1 No. 6H6,
-11 No. 6R7, 1 No. 6N7, 2 No. 6F6, 1 No. 6U5, 1 No. 5Z3
-105 to 125 Volts, A. C.
-See "Apparatus Specifications"
-140 Watts
-455 Kilocycles
APPARATUS SPECIFICATIONS
No. 360-M Receiver-50 to 60 Cycles; P-29068 Chassis; P-29072 Speaker
No. 360-MB Receiver-25 to 60 Cycles; P-29069 Chassis; P-29072 Speaker
CIRCUIT DESCRIPTION
The Stromberg-Carlson No. 360 Radio Receivers are twelve tube, "Electric Tuning", adjustable high fidel¬
ity receivers with three tuning ranges. The electric tuning circuit combines a highly efficient motor and selector
circuit in combination with an automatic frequency control circuit. The electric tuning circuit is arranged so
that eight favorite stations located in the Standard Broadcast range may be set up for selection by means of the
push buttons (local and other stations that give the best daytime and evening service should be selected).
To properly set up the electric tuning arrangement for the eight favorite broadcast stations, read the sec¬
tion, "Instructions for Setting Up Electric Tuning Arrangement", appearing on page 6 of this book.
When manually tuning these receivers or when setting up the eight desired stations for electric tuning,
resonance with a signal is indicated by means of the tuning indicator tube which operates on the cathode-ray
principle. The strength of a received signal may be, determined by observing the size of the aperture appearing
on the target of the tube; the stronger a received signal the greater the reduction in the size of the aperture.
These receivers are also provided with a low level bass frequency compensating circuit in conjunction
with the volume control circuit so that balanced reproduction is obtained for any setting of the volume control.
A separate "Bass" control is also provided to increase or decrease the response at the lower (bass) audio fre¬
quencies if this is desired.
Fig. 1. Terminal Layout for Voltage Measurement Chart and Location of the
Aligning Adjustments.
P-30028 Issue 1 Printed in U. S. A.