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RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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Stromberg-Carlson Nos. 62 and 63, 8-Tube High-Fidelity Chassis Radio Service Data Sheet
February 1936 Radio-Craft

February 1936 Radio-Craft

[Table of Contents]

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 Stromberg-Carlson photos, datasheets and Sam's Photofacts files.

Stromberg-Carlson Nos. 62 and 63, 8-Tube High-Fidelity Chassis

Posted July 19, 2016

Radio Service Data Sheets

These schematics, tuning instructions, and other data are reproduced from my collection of vintage radio and electronics magazines. As back in the era, similar schematic and service info was available for purchase from sources such as SAMS Photofacts, but these printings were a no-cost bonus for readers. There are 227 Radio Service Data Sheets as of December 28, 2020.

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Stromberg-Carlson Nos. 62 and 63, 8-Tube High-Fidelity Chassis Radio Service Data SheetFebruary 1936 Radio-Craft

Stromberg-Carlson Nos. 62 and 63, 8-Tube High-Fidelity Chassis

Stromberg-Carlson Nos. 62 and 63, 8-Tube High-Fidelity Chassis Radio Service Data Sheet
February 1936 Radio-Craft