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Crosley Model 555 (A.F.M.) 5-Tube 2-Band Superhet.
Radio Service Data Sheet
March 1936 Radio-Craft

March 1936 Radio-Craft

March 1936 Radio-Craft Cover - RF Cafe[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.

Crosley Model 555 (A.F.M.) 5-Tube 2-Band Superhet. Radio Service Data Sheet, March 1936 Radio-Craft - RF CafeThis is another Radio Service Data Sheet that appeared in the March 1936 edition of Radio-Craft magazine. I post this schematic and functional description of the Crosley Model 555 (A.F.M.) 5-Tube 2-Band Superhet radio manufacturers' publications for the benefit of hobbyists and archivists who might be searching for such information either in a effort to restore a radio to working condition, or to collect archival information. As mentioned previously, manufacturers usually did not provide this data to anyone other than an authorized service shop, so making it available via the magazine was a huge benefit to repair shops and do-it-yourselfers. Unfortunately, not very much textual content was included with the schematic. It was part of a group of seven different models (see table of contents), and not much more than the schematic was provided for each. Images of the Crosley 555 were gotten from a recent eBay listing (sold for $49.99).

Crosley Model 555 (A.F.M.) 5-Tube 2-Band Superhet. Radio Service Data Sheet

Crosley Model 555 (A.F.M. 5-Tube 2-Band Superhet. Radio Service Data Sheet, March 1936 Radio-Craft - RF Cafe(Tone control; ranges 540-1,710 kc., 2,350-7,500 kc.; A.V.C.; all metal tubes; airplane dial)

Socket Voltages are as follows:

The power drain of the set is 86 W. at  117.5 V. The Det. 2 and A.F. 1 are combined in tube 6J7. All D.C. voltages are measured to chassis with a 500 V., 1,000 ohms-per-volt meter. Voltages are plus or minus 10 per cent.

 

 

Posted January 13, 2023
(updated from original post on 7/13/2015)


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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Kirt Blattenberger - RF Cafe Webmaster

Copyright:
1996 - 2024

Webmaster:

Kirt Blattenberger,

BSEE | KB3UON

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 tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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