DIY PROJECTS FOR THE RADIO AMATEUR

Please note that you use the following information ENTIRELY AT YOUR OWN RISK. Click on the various links below for details.

• A 1KHz Pulser for Setting Up Transceivers and Linear Amplifiers
• SWR and Pep Power Meters for SSB (250,500, and 1200 watts)
• An Antenna Analyser for HF and 6 metres
• SWR and the Meaning of Life
• Simple Mains operated LED power indicators
• A quick and dirty 2 metre J pole
• A very much better dual band J pole which really gets out
• An introduction to stepper motors and simple driving circuits
• Construction of simple high power dummy loads
• Transformer design and construction
• A 600MHz Frequency Counter
• A Low Distortion Two Tone Oscillator
• An SWR meter for the Blind
• A 600 watt HF linear amplifier
• A high power HF antenna switch
• The "Plastic Fantastic" magnetic loop antenna for 40 metres
• A HF/VHF Antenna Analyser
• Metalwork at Home
• Making a Low cost Precision Sheet Metal Bender (Pan Brake Folder)
• A 3 Element Yagi for 144-148MHz with an SWR of<1.5 and 6.5dbd of gain
• A General Purpose Valve tester
• Modifications to the valve tester above to allow the use of cheap DVM modules