Electronics
A McGraw-Hill Publication
Periodical Volume 2Number 7July 1931
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created by: Achim Dassow (27.Nov.19)
available by: Achim Dassow
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Attachments
Currently no attachments available.
Some example tube pages for sets you can see there:
Vacuum Pentode PZ
Transmitter Triode, liquid- 507_DeForest
Screen-grid Tetrode 551 (1931)