EIGHT GREAT STUFF TO MAKE 2008 E67041 Eight Build Your Own Tube Radio

The media could not be loaded. Works great!

I have built dozens of regenerative receiver kits. This one is very easy but be sure to read the instructions in their entirety before building the kit.This will tune from below the 80 meter ham band to just below the 20 meter ham band. The audio is nice and loud. It would benefit from a headphone jack for really weak stations.Pros:-Simple to build-Good audio-Solder points are not to close together-No special tools required- Alkaline batteries will power the radio for many hours at medium volume- Good reception with a long wire (see cons)- Instructions do include some theory of operation- No toroids to wind- Hand capacitance is not bad with a good ground or dipole antenna (see cons)Cons:-Needs a fine tuning control or a bandspread control for the tuning capacitor - 3300 MHz to 13000+ MHz is a lot to tune in 180 degrees (maybe a band switch?)- Needs more than a single turn potentiometer for the regeneration control - the sweet spot is very narrow- Needs an antenna coupling capacitor instead of three jacks to choose from. Using an 80 meter dipole caused me to have to constantly switch between the least coupled antenna connection for very strong stations to the next more coupled jack for weaker stations. A trimmer cap may be in order.- no included battery holder securing devices - battery holders flop around inside the case. The wiring for them needs to be lengthened to allow the holder to be glued or taped to the inside of the back of the box- the case is heavy card stock not metal allowing for some hand capacitance