73 Amateur Radio Today – June 1976
Issue Contents:
Super COR
– digital …of course! …… WA0BMP WB0JHS 16
Touchtone Decoder
– using a calculator readout …… W2AOO 26
Simple Amateur TV Transmitter
– at a QRP price …… WB4YTU/wA9GVK 28
Amateur TV Receiving System
– some of what you wanted to know …… WB4YTU/wA9GVK 33
Glass Arm
– the dreaded CW man’s disease …… Bach 38
Mobile Autodialer
– six preprogrammed numbers …… WB9LTA 44
Autocall ’76
– using a touch tone decoder …… WA6JMM 52
Build This Lab Type Bridge
– and measure transformer impedances …… WB4FDQ 56
How Those Triangle Things Work
– a sort of op amp handbook …… K7YGP/7 60
Phone Patching ’76
– automatic single frequency patch …… WA1RTD 67
Two Finger Arithmetic
– how computers figure …… W1HCI 84
Those Exciting Memory Chips
– RAMs ROMs PROMs etc …… Fowler 96
A Morse to RTTY Converter
– using a microprocessor …… WB6SQU 106
Number Systems – a brief history
…… W6PZV 112
ASCII /baudot with a PROM
– for ribbonless RTTY on computers …… W9LNY 114
Aim Your Beam Right
– with a programmable calculator …… WB4GVE 122
73 Amateur Radio Today – June 1976
