The AZ1 is a full wave rectifier. They were made by several makers who didn't seem to care if they were a common size or construction. Telefunken made them with mesh and solid plates. The Valvo example had mesh plates.
(TELEFUNKEN)Length = 4.12" Diameter = 1.87"
(VALVO)Length = 3.62" Diameter = 1.75"
Max voltage = 500
Max current = 120 ma average
Fil voltage = 4
Fil current = 1.1 amps GOTO INDEX