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73 Magazine (July 1970)

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Book Id: WPLBN0003304695
Format Type: PDF eBook :
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Reproduction Date: 2011

Title: 73 Magazine (July 1970)  
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Volume:
Language: English
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Collections: Periodicals: Journal and Magazine Collection, 73 Magazine
Historic
Publication Date:
1970
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73 Magazine (July 1970). (1970). 73 Magazine (July 1970). Retrieved from http://community.worldjournal.org/


Description
Description: 73 Magazine July 1970 (#118) Improved Color Slow-Scan Television - Using Polaroid films ...... W4UMF 18 Worldwide ITU Prefix/Call Area List - Call prefix allocations ...... W1SWX 24 The Super Autopatch - Telephoning from your FM mobile ...... K6MVH 26 How to Build a Keyer - And still retain your appliance-operator status ...... W9KXJ 36 A 2-Channel Search- Lock for FM Receivers - Listening to two repeaters at once ...... W3DTN 38 A Look at Allied's Portable FM Receivers - Under $20 ...... K9STH 44 450 MHz Mighty Mite - One transistor superregenerative receiver ...... K9VXL 46 Cheapie 6-Meter Half-Gallon - Use 811-As and be heard ...... K1CLL 48 A High Performance Power Supply - Using an IC voltage regulator ...... K0ECF/7 54 A Soldering Gun Tip - New SCR-522 conversion article ...... WB6PKA 59 Latham Island DXpedition - This Zanzibar isle is for the birds ...... 5H3LV 60 Study Guide For Your General Class License: Part I - Okay Techs, here it is! ...... Staff 66 DB to Power ...... WA3JBN 85 Protection For Grid Dipper Coils - Low-cost insurance policy ...... WA0ABI 88 Mobile CW Receiver - But where do you mount the code mill? ...... W6BLZ 90 QSLing, Ham Radio's Own Con Game - Not for pecuniar interest, eh? ...... VK4SS 96 Index courtesy of http://www.qsl.net/kb9mwr/files/ham/73.html.

 
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