As you may have gathered by now, I’m quite keen on homebrew equipment…I don’t mind whether it’s valve or solid state; I do however avoid SMD projects if I can. One of my main interests is valve (or ‘tube’ if you live across the pond) receivers. There are quite a few to choose from including […]
Posts in category Ham Radio
Anything ‘ham radio’ related.
There was a time when radio hams and electronic hobbyists seemed to have more time to build things. Maplin used to publish an excellent magazine in those days…for just 85p…that featured projects you could build, along with hints and tips for experimenters. In September 1988, Maplin introduced a really excellent Direct Conversion Receiver which many people […]
The Daiwa PS-304 has been with us now for at least 25 years…and most are still as reliable as ever. A great design stands the test of time and guess what…Martin Lynch and Sons are now selling the MyDel PS-304 Mark II. Specifications: Input Voltage: 230V 50Hz +/-2Hz Output Voltage: DC 1.5V – 15V continuous […]
As a rather old fashioned radio ham in many ways, I’ve always had a hankering to build a linear amplifier for the HF bands. I’ve got lots of ‘junk boxes’ with stuff in them for different ideas such as: 813’s, QY3-125’s, 811A’s, 4CX250B’s etc… plus various transformers and other essential ‘stuff’. There are lots of […]
On Friday the 10th October 2014, Ofcom published a document that included the intention to release an additional 1MHz of spectrum on the 2m (144MHz) band…on a temporary basis. Available via a Notice of Variation (NoV) to full license holders only, the frequencies are from 146 to 147MHz…giving a full 3MHz on 2m 🙂 From […]