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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June 1931 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.
Westinghouse's motive for dubbing the Model WR-8 the 'Columnaire' is apparent when you see a photograph of it. This model also had a -R version with remote control. The remote, though, has a cable attached to it; it's not wireless like today's remotes.
The fundamental circuit of. these receivers is the vVR-5 receiver chassis and power pack shown in Data Sheet No. 29. The model WR-6 is a highboy; its circuit is the same as used in the WR-S, except as modified for tone control. The Model WR-7 is similar to the model XR-6, except as modified for an electric phonograph.
Models WR-6-R and WR·7-R are the same as the respective WR·6 and WR-7 chasses, except as modified for remote control. The Model WR-8 uses the same chassis and power pack as the Model WR-6, only all electric clock and the cabinet distinguishing it as the "Columnaire;" the remote-control model being coded as the Model WR-8-R.
The "Columnaire" Model WR-8 is, except for the cabinet, the same as the Model WR-6; while the Model WR-8-R receiver chassis and power pack are almost identical with the Model WR-6-R. Leads for the synchronous electric clock are shown and, (in dots) the leads for the remote control attachment. The primary of T3 connects to the 110 V, line; the secondary output is 23 Y.
Posted August 31, 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 185 Radio Service Data Sheets as of April 12, 2017.