Knowing what a gamble it is buying a switched mode PSU for ham radio use I hope no-one will mind my passing on a recommendation for one I got today. It is Maplin code L11BQ (
http://www.maplin.co.uk/module.aspx?moduleno=48517) and it is on special offer at £19.99 until 20 January. Not a bad price for a 13.5V 4.0A PSU!
I have just tested it on an FT-817 with a Wonder Whip on the back which is the worst possible test due to the close proximity of antenna and PSU and I could detect no increase in noise when the power supply is switched on. I didn't notice any warblies that were caused by the power supply either.
This would make a very nice, small, portable power supply for a QRP K2 or any of the other QRP Elecraft radios, that you could use from a hotel room or whatever with an indoor antenna.
With best wishes for a happy 2009.
Locked
