VE7BPO Blog
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AB4YD Amateur Radio Page
This project was inspired by a series of QST articles by Hayward, W1PH. The design is based on his April 1962 article, "Have You Tried 160 Lately." The rig features a simple, single-band configuration utilizing 6V6 tubes with regulated voltages,...
Electronics Projects Circuits
Over 1400 top electronics projects and electronic circuits with photos, datasheets, and easy-to-read schematics, along with explanations of how they work and how to build them.
The collection comprises a vast array of electronics projects suitable for enthusiasts and professionals alike....
dyi setup and debugging guide
This page discusses the differences between assembled Open USB FXS dongle boards and DIY boards. While the assembled boards are fully tested and quality control approved, DIY boards may encounter various issues during assembly. Fortunately, most of these issues can...
Glue stck torch
This project, developed around 2005, involves constructing a torch using a glue stick, which conveniently accommodates an AA battery within its plastic casing. To create a functional battery holder, contacts for both the positive and negative connections are necessary. The...
Homemade Metal Detector Kit
A simple home project can quickly become problematic if it encounters electric cables, gas, or water pipes, or the central heating system. Using a metal detector allows one to check for metal objects within walls, ceilings, or floors beforehand. An...
how to convert a 9v battery to 3.7v
A regulator circuit is needed for this DIY project. Familiarity with electronic components, circuitry, the use of a multitester, and a soldering iron is essential. The schematic diagram provided can accept an input voltage ranging from 6 to 24 volts...
The Crystalizer
A classic amateur radio transmitter topology, known as the oscillator-amplifier (often referred to as master oscillator, power amplifier, or MOPA), utilizes one tube for frequency control and another for RF power amplification. In its quartz-crystal-controlled form, it typically allows operation...
Crescendo ampilifier elektor1982
The Elector Crescendo was the first DIY amplifier that was not a kit. The design was sourced from the Elector magazines available at a local library.
The Elector Crescendo is an innovative audio amplifier designed for DIY enthusiasts. It features a...
Help with a schematic please
A project is underway to construct the CountryHick DI as illustrated on DIYFactory, incorporating a few minor modifications. The final design aims to be a 1U unit with four inputs.
The CountryHick DI (Direct Injection) box is a crucial tool in...