Turns Counter for vacuum capacitor or roller inductor
Introduction For my new to build HF PA I was looking for 3 turns counters for vacuum capacitor and / or a roller inductor. These […]
Introduction For my new to build HF PA I was looking for 3 turns counters for vacuum capacitor and / or a roller inductor. These […]
For my 23cm PA consisting of 4 PA’s I needed a temperature meter with protection in case the amplifier gets hot. The system is build […]
A FET switch to work together with the Arduino PWR / SWR meter and controllable by the PTT is published here. The FET is a […]
Kenwood Band decoder in “Chinese blue” For my new HF amplifier I needed a band decoder for my Kenwood TS590. A search on the internet […]
Arduino sequencer To work together with the Arduino Power SWR meter we made a simple sequencer with the Arduino nano. It is highly flexible and […]
SWR Power meter with protection for Solid State PA Version II Old article below this one Some people who built the power meter came with […]
Electronic Compass with the HMC5883 My friend Jac is active on 10 & 24 GHz portable. To aim his 90cm offset dish which is mounted […]
My first attempt to write some arduino code for a simple stepper motor driver. This is used in combination with the L298 boards available from […]
In of my first attempts to use the Arduino, I came across the CW keyer from K3NG. I was amazed by the possibilities Anthony had […]
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