Screwdriver Antenna Controller for your Smartphone. Griffin (AA4PG) and Wingard (N4DKD), CQ Magazine, December 2020
Replacing the Collins 30L-1 On/Off Switch. Electric Radio, 269, October 2011
Replacing the VFO Coupling in Johnson Transmitters. Electric Radio, 300, May 2014
The Mosley CM-1 Receiver: 1961-1962. Electric Radio, 334, March 2017
Adding a Product Detector to the Multi-Elmac PMR-7. Electric Radio, 364, September 2019
Adding a Product Detector to the Multi-Elmac PMR-8. Electric Radio, 370, March 2020
A Product Detector and S-Meter for the Elmac PMR-7. Electric Radio, 373, June 2020
(Actually, this title in the magazine is incorrect. The product detector is a modification of the squelch circuit in a PMR-7 and the S-Meter is in a PMR-8)
The Johnson Invader: Replacing the VFO Pinion Gear. Electric Radio, 393, Sept/Oct 2022
The Central Electronics 600L: Replacing the SWR Relay. Electric Radio, 412, Nov/Dec 2025