learn electronics repair
Self explanatory! The guy runs an electronics repair business, in the Canaries I think (!!), repairs a wide spectrum of equipment and devices, builds projects, reviews the odd equipment, does tutorials on repair techniques, hints and tips, etc, etc.
mend it mark
repairs a wide range of equipment, from valve to the latest gear, good presentation style, no blathering or messing about, very experienced guy, has a great array of test equipment!