The Information Source For Makers, Experimenters, DIY, Home Brewers, Restorers, and Amateur Radio Operators
The homebrew 20M QRP CW transceiver was designed and built in 1984. It has recently been refurbished and upgraded as described in this article. Background and Design Activities In 1984 Motorcycle touring, camping, and ham radio are activities I’ve immensely…
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An RF Probe is an important tool to have for electronics and radio troubleshooting. They allow you to probe into different parts of circuits to find where you do or do not have an HF/VHF/UHF signal. With this information, you…
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A soft latching power switch circuit can be made very simply, but many designs are complex. The concept of replacing the toggle switch with a simple push-on, push-off design is not new and there are endless ways to do it….
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The Philips Norelco 7115X shaver does not have to be thrown away just because the battery is worn out. My husband loves his 7115X and they are quite easy to repair by home do it yourself enthusiasts who know how…
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A USB Radio Interface is often desirable in modern amateur radio operations for connecting a personal computer to a radio transceiver. On the computer side, the USB port is generally the most convenient and widely used interface medium. Things are…
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This battery box is a portable power source to use for camping, amateur radio field operations, ARES deployments, emergency backup power, and hundreds of other situations where DC power is needed and grid or shore power is not available. This…
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