This is an assortment of published articles about different subjects that may be of interest to ham radio operators and other electronics hobbyists…
All articles are copyrighted material as stated thereon; photo credits are given as appropriate and are also stated thereon. If no specific photo credit is given, the photo is the intellectual property of and is copyrighted by CMS in Pitman, NJ USA.
As you read these articles, please feel free to drop me an email with any questions that you may have. I will be happy to provide an explanation for any of the material that you may find to be confusing.
A new feature, effective 23 March 2024, is that the article titles in the listings below will from this point on also be live links to those articles!
This is a PowerPoint slideshow that has been PDF-converted to make for easy web viewing, and covers Inverted V dipole antennas…
This is a PowerPoint slideshow that has been PDF-converted to make for easy web viewing, and covers the basics of using the popular CHIRP utility to program radios…
This article describes the partial refurbishing of a 1960’s-era RCA WO-33A oscilloscope, with an eye towards a later conversion of the ‘scope into a curve tracer display…
This is an article that explores some of the methods available to the electronics hobbyist when it comes to making printed circuit boards (PCB’s) for a project…
This is an article describing the process for converting ExpressPCB printed circuit board design files into Gerber data file sets for submission to a PCB manufacturer…
This is a case study report of an involved repair to a Yaesu G-5500 AZ-EL rotator controller that I recently made…
This is an article that explores and explains the Kelvin four-wire resistance measurement method that removes the test lead resistance from the reported value…
This is a complete description of the tasks involved in the resurrection of an Orion OR-2300 rotator system that had sat in standing water for an extended period of time…
This article describes the various aspects of repairing and testing the magnetic encoders used for the VFO control in certain Icom radios…
This article explores the equations used to determine the length of a wire of any given wire gauge needed to wind a specified number of turns onto a toroidal form of a given size…
This article describes the procedures for extending the effective current or voltage range of a meter using the D’Arsonval-type meter movement…
This is a reworking of the earlier entry of the same basic name. There have been some changes to CHIRP in the last two years, and this updated slideshow explains all of the newest features…
This article explains the options and processes for restoration of mid-1950’s Zenith IF transformer cans, especially as related to silver-mica disease…
