73 Amateur Radio Today – June 1961 Issue

73 Amateur Radio Today – June 1961 Issue

Return to 73 Amateur Radio Today Index


Issue Contents:

Abe Lincoln

– Two meter antenna for mobile or fixed. Looks awful works great! …… K2TKN 8

75M Transistorized Converter

– Nice little one evening construction project …… WA6DZL 12

Precision Capacity Measuring

– Right down to a fraction of a pF …… K6BJ 14

Propagation Part 2

– When the sunspot null will really come and what it will be like …… K2IGY 16

73 Tests the M-100 Modulator

– Just how good is that gate modulator put out by Electrotone? …… W4API 20

AM Modulation Monitor

– A bit complicated but great for perfectionists …… W5SUC 24

Modifying the KT-200 Receiver

– Bill claims this is a real good deal with these few changes …… W6SAI 30

Pandapting Adaptor Part 1

– Moderately simple device connects your receiver to your ‘scope …… W6AOI 33

Automatic Drive Control

– Transistor device keeps you from over modulation. Clever …… W5IUR 38

Dear Sir

– On writing to manufacturers about your miseries …… K2DHA 39

FCC Notice

– Thought you’d get a kick out of this bit of antiquity …… W8ONL 41

Do-it-Yourself IBM

– Punch a few holes and get some real mileage out of a card file …… K5JKX/6 44

Power House Pros

– Part 1 all about power supplies …… Staff 51

Propagation Chart

– DX men please note that this is the most accurate forecast in print …… K2IGY 54

The DX Hunter

– Do’s and don’ts for DX hunting …… W6NKE 56

73 Amateur Radio Today – June 1961 Issue

Return to 73 Amateur Radio Today Index


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