Guitars of Love

For something different: a 12 volt car batter charger. Utilises a source of around 12VAC with at least 5 amp capability.
 

Because the 2N3055s are mounted directly on the heatsink, the heatsink must be insulated from earth. It is held in place with two 12G metal hex bolts, which I have insulated with expoxy resin and grommets to avoid making contact with (say) the chassis of the vehicle.
 

NOTE: Charger MUST be operated with the lid open

NOTE: Charger MUST be operated with the lid open

A link to the pdf of the schematic is here:

A link to the pdf of the Vero board design is here:

kelvin@guitars-of-love.com