73 Amateur Radio Today – December 1968
Issue Contents:
Using the First Ham Integrated Circuit
– Includes several useful circuits …… W6DNS 6
Mouse Tunnels
– Hiding the wiring …… K6HKB 12
Circular Modulation Monitor
– A new scope …… WA9IGU 14
The Mini-square
– Square wave in miniature …… WB6BIH 16
Add-on FM Test Set
– Simple to complex in easy stages …… K9STH 18
The Elusive H Parameter
– Not so elusive now …… WB6BIH 20
Zero Temperature Coefficient VFO
– Sure stability …… W6WQC 24
75 Meter DSB Rig
– A step in the right direction …… W3KBM 28
A Novice FET Converter
– A good building project for the Novice …… K6DBQ 36
Transceiver Review
– Photos and information about the transceivers now available for Christmas …… Staff 40
30 Watt Transistor Transmitter
– All transistorized! …… W5PAG 46
Care and Feeding of a Ham Club
– Part 6. Do something interesting …… W5NQQ 52
Getting Your Higher Class License
– Part 9. More on transmitters …… Staff 56
Christmas Gifts for Hams
– Gifts under $25 …… Staff 72
Three Black Boxes
– What constitutes a station …… W5EHC 82
Facsimile and the Radio Amateur
– What is facsimile and how to do it …… K6GKX 84
Why SSB?
– Required reading how SSB is different …… K3PUR 86
Limitations on Antenna Reciprocity
– The answer to one way skip? …… WA4UZM 92
Index to Articles Appearing in 73 in 1968
– Cumulative index. Where to find it …… Staff 98
73 Amateur Radio Today – December 1968
