RF Cafe Software
About RF Cafe
1996 - 2022
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 Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...
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January 1935 Radio-Craft[Table of Contents]
People old and young enjoy waxing nostalgic about and learning some of the history of early electronics. Radio-Craft was published from 1929 through 1953. All copyrights are hereby acknowledged. See all articles from Radio-Craft.
Radio Service Data Sheets were published by various electronics trade magazines back in the early to middle decades of the last century. SAMS Photofact document sets were published on just about every appliance made, and those had much more detail than these briefs. However, for the low-budget repair shop or the do-it-yourselfer, the Radio Service Data Sheets were a godsend. I have been scanning, cleaning up, and posting all the ones I find in my vintage electronics magazine collection. See a complete list at the bottom.
Many fine examples of restored vintage radios can be found on the Internet. The RCA Victor Model 102 shown above appears on the RadioMuseum.com website.
The receiver is aligned at 1,400 kc, for maximum output. Align the tuned circuits with the trimmers in position of minimum capacity. After alignment. check to make sure that a 1.712 kc. signal can be heard when the main tuning condenser is near its extreme minimum position. Power consumption, 40 W.
Care should be taken to avoid restriction of natural ventilation as would occur with the set resting upon or placed close to a radiator or other heating device.
In most localities the 20 ft. antenna lead of the set will provide sufficient pick-up.
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 185 Radio Service Data Sheets as of April 12, 2017.