1978 May QST p. 11
A Modular Control Unit
December QST p. 41
Give Your Repeater Some Identity
1979 February QST p.
A First-Class Touch-Tone Encoder
Feedback; May 1979
March QST p. 16
A CMOS Control Circuit for Repeaters
April QST p. 11
A Low-Cost PC-Board Duplexer
November QST p. 38
Build a Ragchew Clipper
December QST p. 31
Compatible RTTY (FM repeater)
1980 February QST p. 18
An Automatic CW Identifier
March QST p.
A Universal Touch-Tone Decoder
April QST p. 31
A Portable 2-Meter Repeater for Emergency
Communications
June QST p. 16
A Telephone-Line Repeater Control Device
October QST p. 20
A CMOS Command Decoder for Repeaters and
Remote Bases
1981 January QST p.
The ARES Standard Tone-Alert System
June QST p. 15
Mnemonic Encoder - Let's You Know What
Your Repeater is Up To.
October QST p. 25
Phone-Line Interface - Do It Solid-State
Style
December QST p. 42
Digital Frequency Filter for Repeater
Inputs
1982 January QST p. 25
The DTMF "Easy-Ceiver"
June QST p. 20
Not Just Another Decoder 4 pages
1983 NOvember QST p. 16
The DTMF Easy Controller - With 6 pages
Security
December QST p. 26
The Microcomputer Repeater Controller 6 pages
1984 May QST p.
The Nearly Ultimate Decoder
1988 February QST p. 19
Professional Quality DTMF and Selcal 4 pages
System
July QST p. 32
A Multi-purpose DTMF Encoder
1989 December QST p. 22
A Repeater-Linking Controller
1990 May QST p. 22
An Audio Equalizer for Communications
Use