This page contains downloadable files to support RadCom articles.
RadCom January 2014
This 21.6k ZIP file contains the files to support the G0MGX Arduino Power Meter article.
The author spotted some errors in the circuit diagram after publication and has supplied a replacement. The updated version includes switches on pins 47 and 49 and corrects the connections to pin 8 of the sample & hold opamps IC2 and IC4. Click on the thumbnail below to see the full size image.
RadCom September 2013
The following downloads support the RSGB Centenary Receiver.
Matters arising since publication:
- The voltage rating for the electrolytic capacitors should be 16V or higher.
Some people have reported the 2N3819 FET as difficult to obtain. A number of eBay suppliers offer them, or a suitable substitute is the BF256B – but note that the pinout is different.