Antique radios, Old Time Radios
9781B
|
Country:
Great Britain (UK)
|
|
| Identical to |
9781B
|
| Similar
Tubes |
Differences not known by us:
9781A
|
| Was used by |
Technology / Measurement |
| Filament |
|
| Description |
The 9781B is a 29 mm (1.13“) diameter, side window photomultiplier with a blue-green sensitive bialkali photocathode and 9 high gain, high stability, SbCs dynodes of circular focused design.
Spectral range 165-680nm
Photocathode active area: 8x24 mm
Dynodes: 9 x CFSbCs
Nominal anode sensitivity : 50A/lm
Gain: 700 000
|
Dimensions (WHD)
incl. pins / tip |
29 x 90 x mm / 1.14 x 3.54 x inch |
| Weight |
45 g / 1.59 oz |
Collection of
|
|
|
|
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 |
|
|
|
