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Pilot Model B-2 Radio Service Data Sheet
July 1933 Radio-Craft

July 1933 Radio-Craft

July 1933 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.

Here is Pilot Model B-2 Radio Service Data Sheet as featured in a 1933 edition of Radio-Craft magazine. As mentioned many times in the past, I post these online for the benefit of hobbyists looking for information to assist in repairing or restoring vintage communication equipment.

Pilot Model B-2 Radio Service Data Sheet

The control- and suppressor-grid voltage for all tubes is zero.

This superheterodyne receiver incorporates several interesting design features. One of the half-wave sections of V5 is used to supply direct current to the field coil of the dynamic reproducer; the other section delivers the high voltage required by the tube circuits. To reduce the hum level of the set a hum-bucking coil is incorporated in the dynamic reproducer. Resistor R2 is part of the power cord.

It is not necessary to adjust a circuit-changing switch when changing from one current supply to the other; tube V5 is in the circuit at all times.

The rated sensitivity of the model B-2 receiver is 100 microvolts-per-meter; the power output is 0.9-W. On A.C. or D.C. the line power consumption is 0.4-A.

Pilot Model B-2 Radio Service Data Sheet, July 1933 Radio-Craft - RF Cafe

Pilot Model B-2 Radio Service Data Sheet Instructions, July 1933 Radio-Craft - RF Cafe

 

 

Posted September 14, 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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