Antique radios, Old Time Radios
Electronics
A McGraw-Hill Publication
Periodical Volume 2Number 7July 1931
created by: Achim Dassow (27.Nov.19)
available by: Achim Dassow
Attachments
Currently no attachments available.
Some example tube pages for sets you can see there:
Screen-grid Tetrode
551 (1931)