Antique radios, Old Time Radios
FG33
|
Country:
United States of America (USA)
|
|
| Identical to |
FG33
= GL5720
= 5720
|
| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
Top contact with a cap.
|
| Was used by |
Industrial |
| Filament |
Vf 5 Volts / If 4.5 Ampere / Direct |
| Description |
Anode voltage 1000, grid voltage +10.
This tube is a mercury vapour thyratron with a positive control characteristic. This offers the advantage of a tube which will only operate with a positive voltage on the grid. It is ideally suited for applications which require that no current flow in the absence of grid excitation. Also produced in Italy by Fivre.
The tube is listed on page 48 of the "Story of Electronic Development at the General Electric company". Dated Dec 10th, 1930.
|
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature Data sheet ETI-120 dated April 1945
|
|
|
|
Just Qvigstad
|
FG33: Manufacturer's Literature
Emilio Ciardiello
|
|
|
|
|
You reach this tube or valve page from a search
after clicking the "tubes" tab or by clicking a tube
on a radio model page. You will find thousands
of tubes or valves with interesting links. You
even can look up radio models with a certain tube
line up.
[rmxtube-en]
| Data Compliance |
More Information |
|
|
|
