February 1936 Radio-Craft
Wax nostalgic about and learn from the history of early electronics.
See articles from Radio-Craft,
published 1929 - 1953. All copyrights are hereby acknowledged.
All voltage readings are measured between chassis
and ground with a 1,000 ohms-per-volt meter. The line voltage is 120 V. for this table. All filament
voltages are 6.3, except for tube V8, which is 4.85 V. The set should be tuned to 1,000 kc. with no
signal. The numbers over the columns correspond to the socket terminal numbers which are shown on the
bottom chassis drawing. Note that there will be no high voltage in the circuit when the speaker plug
is removed. The tuning meter is used only on the No. 63 chassis, but the two are otherwise exactly alike.
The variable intermediate transformer is used as a band widener for high fidelity.
See Tom Bavis' AudioPhool.com website for an extensive collection of
photos, datasheets and Sam's Photofacts files.
Stromberg-Carlson Nos. 62 and 63, 8-Tube High-Fidelity Chassis
Posted July 19, 2016