Antique radios, Old Time Radios
Hund_1
|
Country:
United States of America (USA)
|
|
| Identical to |
Hund_1
|
| Similar
Tubes |
Multiple differences or of other kind:
Hund_2
|
| Base |
UY-Base, 5 Pins (USA, April 1927)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
--/-- |
| Description |
This tube is a cold cathode triode invented by Dr August Hund of the laboratories of the Wired Radio Co of New York. The element consisted of an open ended corrugated metal anode mounted horizontally and surrounding other elements. It was claimed to be a "filamentless" triode and was able to do everything a three electrode tube could do - amplify, rectify and oscillate. Tests of the tube as a transmitter showed that the tube could be worked on short wave even below one meter. No patents have been found and apparently the tube was never available commercially. This tube adopted the standard "S14" size bulb.
|
Dimensions (WHD)
incl. pins / tip |
x 108 x 45 mm / x 4.25 x 1.77 inch |
| Weight |
45 g / 1.59 oz |
| Information source |
Radio Craft March 1933
-- Collector info (Sammler) TCA bulletin October 2018
|
|
|
|
Just Qvigstad
|
Hund_1: Fin Stewart
Fin Stewart
|
|
|
|
|
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 |
|
|
|
