Antique radios, Old Time Radios
38217
|
Country:
United States of America (USA)
|
|
| Identical to |
38217
|
| Similar
Tubes |
Normally replaceable-slightly different:
FG17
; SE-4261
|
| Predecessor Tubes |
SE-4261
|
| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
Top contact with a cap.
|
| Was used by |
Military and/or Government |
| Filament |
Vf 2.5 Volts / If 5 Ampere / Direct |
| Description |
US Navy code for commercial type FG-17.
This tube is a negative control mercury vapor thyratron for use where it is desired to actuate the tube with a negative grid voltage. It requires relatively little grid power and is suitable for use in relay circuits where current flow is desired in the absence of grid exitation.
|
| Information source |
Tube Lore (II) p. 90 & 182
Tube Lore (I)
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
|
|
38217: Fin Stewart
Fin Stewart
|
Just Qvigstad
|
|
|
|
|
|
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 |
|
|
|
