Radio Broadcast (Nov. 1925-Apr 1926)

Record Details:

Something wrong or inaccurate about this page? Let us Know!

Thanks for helping us continually improve the quality of the Lantern search engine for all of our users! We have millions of scanned pages, so user reports are incredibly helpful for us to identify places where we can improve and update the metadata.

Please describe the issue below, and click "Submit" to send your comments to our team! If you'd prefer, you can also send us an email to mhdl@commarts.wisc.edu with your comments.




We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.

Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.

RADIO BROADCAST ADVERTISER 239 NATIONAL Velvet Vernier DIAL Type B, Variable (Patents Pending) Positive Control Easily Mounted Gearless Variable Ratio Velvety Smooth Graceful Design * With This NEW National Type B, Velvet Vernier Dial, YOU Control the Reduction Ratio! WHAT a difference in the tuning of your set when you replace your plain dial with a new NATIONAL Type B Variable (patents pending). You'll be astonished. Any ratio you desire, from a minimum of 6 to 1 to a maximum of 20 to 1 is instantly obtained by shifting a small lever. Note how it separates the stations operating on the lower wave lengths. Easily mounted on the \" shaft of any stand ard type of variable condenser, tool you need is a screw driver. The only The same velvety smoothness, the same freedom from backlash, the same mechanical drive as the famous Type A Velvet Vernier Dial, (patents pending). Price $2.50. NATIONAL Tuning Unit Type B D-2 The NATIONAL KIT for the popular circuits and hookups gives amazing results to amateur set -builders. Comprises the NATIONAL CONDENSER and the wonderful BROWNING-DRAKE TRANSFORMER. Complete in one package, Price $22. Makes a most welcome Christmas Cift. Write for Bulletin 106 R. B. NATIONAL CO., INC. W. A. READY, President 110 Brookline St. CAMBRIDGE, MASS. NATIONAL Tuning Unit Type B D-l Tested and approved by Radio Broadcast