Peavey Schematics - Tube amp Schematics Click the link above for Tube amp info, Schematics, Board building information, Projects, Mods, Transformer diagrams, Photo's, Sound clips. There are hundreds of pages of Peavey Windsor 120 Watt head schematic? - diyAudio Apr 07, 2009Ya I know, but you can't find a tube half stack for that cheap form any other company. I does have some room for improvement though. I don't know how it sounds in person but I have watch demo's of it on youtube and it does sound pretty good.