Having been into electronics for over 50 years I collected parts for various projects that never got done. Have 3 high voltage transformers (roughly 300v ) and a 6v filament transformer got for tube preamp project, a 110v to 6V DC lab quality encapsulated power supply, 110v buck\boost transformer, and a step up/down 110 to 220
I am keeping The Analog Devices 273k shown In pictures.