73 Amateur Radio Today – June 1961 Issue
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
