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73 Magazine (April 1969)

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Book Id: WPLBN0003304710
Format Type: PDF eBook :
File Size:
Reproduction Date: 2011

Title: 73 Magazine (April 1969)  
Volume: Vol. 1, No. 103
Language: English
Collections: Periodicals: Journal and Magazine Collection, 73 Magazine
Publication Date:
Publisher: Amateur Radio Publishing, Inc.


APA MLA Chicago

73 Magazine (April 1969). (1969). 73 Magazine (April 1969). Retrieved from

Description: 73 Magazine April 1969 (#103)

Table of Contents
Dual-Channel Oscilloscope Pre-Amplifier - Convert your scope to a $1000 dual channel job. Save money ...... W3ZZY 6 Simplest RF Pre-Amplifier - Simple, new, very effective. Works, too ...... W1EZT 10 Education and Ecstacy - Reprint from LOOK Magazine re the "magic" of ham radio ...... Leonard 14 Push-to-Talk - Converting the Two'er for this valuable function. Beats LSMFT ...... VE3ETJ 16 Variable DC Load - For testing power supplies and things like that. You never know ......W2AJW 18 Single-Side SWR Bridge - Complete with plan for etched circuit board ...... WA5SWD 22 100 kHz Marker Generator - Used to mark frequencies up to the 144 and 220 MHz bands ...... W7CJB 24 One Technique to Avoid That Routine QSO - Desperately needed information for many phone and CW ops ...... W6EUV 28 Minimum Cost Silicon Semiconductor Survey - Long article, but transistor buffs should flip over it. Flip ...... Zaranski 30 Heath SB-610 Monitor Scope Modifications - Makes a good piece of gear even gooder. You need one ...... K6SDE 42 VHF FM Station Control - Switches two channels in each of two bands ...... WA7EVX 46 A Simple Portable Rig for Six Meters - Two transistors and one IC modulator and head for the hills ...... WB6BIH 48 Using FETs in Burst Generators - Now what in the devil is a burst generator? ...... K3VKC 50 Two Meter Converter - For the Swan 250... Or any other receiver or transceiver ...... K3VLQ 52 VSWR, An Outmoded Parameter - Adding fuel to the fires of controversy? Or calling troubled waters? ...... VE2AXQ 55 Testing the Drake VHF Converters - The new Drake converters for six and two are grrrreat! ...... WlEMV 56 About Loading.... Which Loads What? - Can an antenna really load a rig? Or does the rig load the antenna? ...... Staff 58 0 Cycle Filter - The ultimate in selectivity ...... LX5SM 60 Camp Albert Butler - You've read the ads... Here is what it is all about ...... W4UF 68 Extra Class Study Course - Part 3 - Part 3 of 10 parts. Good luck ...... Staff 70 Learning the Morse Code - A new and much faster approach to the code ...... K9AAU 85 Index courtesy of

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