RCA Victor R-27 and Philco 53 Ultra-Midget A.C.-D.C. Radio Receivers
Radio Service Data Sheets
May 1933 Radio-Craft

May 1933 Radio-Craft

May 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.

R.C.A. Victor R·27 Universal: This small radio set carries the following specifications: Line voltage rating, 105 to 120 V., D.C., or 25 to 133 cycles A.C. Power consumption, 40 W. A feature of this set is the extremely wide tuning range of 540 to 1,700 kc. The left-hand knob is a combined volume control and power- switch; the station selector is at the right. If the set does not work within a minute, reverse the position of the line plug in the socket. This particular type of set should be so positioned as to permit full ventilation at all times.

Philco 53 Universal Compact: To obtain maximum sensitivity through the use of the 30 ft. of antenna wire furnished with the set, it will be necessary to adjust the antenna compensating condenser, the L.F. compensating condenser and the sensitivity condenser in the following manner; unroll the 30 ft. of antenna wire to its full length (do not connect it to another aerial or ground while the following adjustments are being made).

RCA Victor R-27 and Philco 53 Ultra-Midget A.C.-D.C. Radio Receivers Radio Service Data Sheets

RCA Victor R-27 and Philco 53 Ultra-Midget A.C.-D.C. Radio Receivers Radio Service Data Sheet, May 1933 Radio-Craft - RF Cafe

 

 

Posted May 25, 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 219 Radio Service Data Sheets as of November 15, 2017.