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General Electric Models A82 and A87, 8-Metal-Tube All-Wave A.C. Superhet. Radio Service Data Sheet
February 1936 Radio-Craft

February 1936 Radio-Craft

February 1936 Radio-Craft Cover - RF Cafe[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.

The "sentry box" is the outstanding feature of this set. It contains all coils, the band switch, the R.F. tube V1, the det. 1 and osc, tube V2, and all components of the circuit associated with these units.

Before starting any adjustments on the set, it is advisable to make certain that they are needed, and the use of a "service wand" is the quickest way to do this. Holes are provided in the coil shields to admit the wand without disturbing any parts of the set, so that the test is made under normal operating conditions. (The wand consists of a rod of insulating material having a ring of non-magnetic metal attached to one end, and a small core of finely-divided iron at the other.) The fol­lowing table shows what circuit adjustments are needed for various indications when using the wand.

General Electric Models A82 and A87, 8-Metal-Tube All-Wave A.C. Superhet.



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.

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