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April 1969 Electronics World
Table of Contents
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April 1969 Electronics World 
Table of Contents
Wax nostalgic about and learn from the history of early electronics. See articles from Electronics World, published May 1959 - December 1971. All copyrights hereby acknowledged. |
April 1969
Vol. 81, No. 4
| Ionospheric-Propagation Predictions, by H. Charles Wood | 27 |
| Importance of Filters, by A. H. Seidman | 37 |
| LC Filters, by Stephen Rosenfield | 40 |
| Practical Operating Limits for Filters | 44 |
| Filters for Microwaves, by Robert Felsenheld | 45 |
| R. F. Interference Filters, by Benedict Rosen | 48 |
| Crystal Filters, by Robert L. Kent | 50 |
| Ceramic Filters, by Reg Zimmerman | 53 |
| Beads Block Noise | 55 |
| Mechanical Filters, by Donovan A. Southworth | 56 |
| Active Filters, by James L. Hogin | 58 |
| UJT Monocycle Multivibrator | 61 |
| Mac's Service Shop: Keeping Abreast of Your Field, by John T. Frye | 62 |
| Tech-Themed Comic | 63 |
Posted December 8, 2017
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: |
