Amroh Proton Tube Amp Kit from Muiden, Holland around 1958.
Over 65 years old amplifier, not tested, I always leave that to the Pro's.
Lot of info and schematics of the design online (at least in Dutch).
As a kit, it was built well, with pre-fab metal construction plates.
Missing some screws in some places.
6ÂU6 USA preamp tube
Selenium Bridge Rectifier
220V EU-type plug.
Sold AS IS! Fro parts or restoration, no retuns.