|
|
|||||||||
| Software: RF Cascade Workbook | RF Symbols for Office | RF Symbols & Stencils for Visio | Espresso Workbook | ||||||||||
|
|||||||||||||||||||||||||||||||
   |
   |
||||||||||||||||||||||||||||||
|
Please Support RF Cafe by purchasing my ridiculously low-priced products, all of which I created. RF & Electronics Symbols for Visio RF & Electronics Symbols for Office RF & Electronics Stencils for Visio T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads These Are Available for Free |
|||||||||||||||||||||||||||||||
June/July 1940 National Radio News
Table of
Contents
|
June/July 1940 National Radio News  [Table
of Contents] These articles are scanned and OCRed from old editions of the
National Radio News magazine. Here is a list of the
National Radio News articles I have already posted. All copyrights are hereby acknowledged. |
June/July 1940
Vol. 9, No. 3
Our Cover Photograph
The Columbia Broadcasting System has recently dedicated their newest transmitter, for Washing-ton, D. C., thus giving the Nation's Capital one of the fifty kilowatt broadcasting stations, which is the maximum power for the United States. The photo on the cover of this issue of the News shows Mr. John Palmquist (WJSV's control room supervisor, at left) and William Kriz (WJSV's transmitter supervisor) demonstrating to the cameraman how simply and quickly one of the big mercury vapor rectifier tubes of the three phase full wave bridge type 200 kilowatt power rectifier unit can be replaced. This picture not only shows you how large rectifier tubes are changed in case of tube failure, but also how they are mounted in their respective positions on the rack. Of course, no one is permitted to enter the power room or section when high voltage is turned on.
| Make Extra Profits Changing Push-Button Radios to New Frequencies, by J. A. Dowie | 3 |
| Radio Frequencies and Their Allocation | 9 |
| Novel Radio Items | 15 |
| Advantages of Outdoor Antennas, by Julius G. Aceves | 18 |
| Robot Attention Getter | 20 |
| Technically Themed Comics | 30 |
Posted April 8, 2014
Copyright: 1996 - 2026 |
About RF Cafe 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 World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: My Daughter's Website: |
