Hello, I have in mind these simple HF QRP radios with low components count, built by homebrewers. What is the simplest technique that comes into your mind of building such a circuit, so as to store it and use it like a device whenever you need it? Some thoughts: 1. A wooden board with nails for the components and aluminium panel http://www.techlib.com/electronics/graphics/2tranb.jpg This can be made with commonly found components and if components leads are wrapped on the nails, not even a soldering iron is needed. Panel can be used as a heatsink for higher power transmitters, like the one I have built http://qrp.gr/easy40/index.htm 2. A PCB formed enclosure like this one http://qrp.gr/hf_allband_filter.htm where the whole enclosure is made out of PCB material. The panel is also PCB. This can be more costly since more PCB material and more solder for joints is required. This can be more unhealthy too, lots of copper lots of solder smoke and drilling and cutting of the fiberglass. 3. A combination of 1 and 2 above, where a wooden-aluminium enclosure is made and the components are soldered onto a piece of PCB material (dead bug) instead of supported by nails. 4. A tuna-tin enclosure like this one http://www.qsl.net/w2jts/TunaTin2.jpg taken out of used tins but with components soldered directly onto a PCB (dead bug). The tuna tin will possibly be too hard to drill accordingly and can be dangerous on the fingers. Also components cannot be soldered directly onto it, it is not solderable metal. 5. An Altoids-like enclosure like this one https://vk4jaz.files.wordpress.com/2012/01/p1010013.jpg with the components soldered directly onto the enclosure because it is solderable. Of course you would have to find the enclosure somewhere you cannot build it easily. 6. I have seen also cardboard enclosures but this is quite unstable mechanically. Any other ideas, anything that comes in mind, with some advantages disadvantages described? It will be fun to see what people are thinking or have done to enclose their projects into homebrew enclosures.