|
![](Foto's/SX201A%20(Sylvania).jpg) |
![](Foto's/UX201A%20(RCA).jpg) |
![](Foto's/401A%20(De%20Forest).jpg) |
![](Foto's/UX201Aschema.jpg)
Detector/ amplifier triode
Introduced in 1920
1 |
2 |
3 |
4 |
base |
f |
p |
g |
f |
UV4/UX4 |
Vf |
Af |
Va |
mAa |
Vg |
ra |
gm |
5 |
1*/0.25 |
90-135 |
2.5-3 |
-4.5/-9 |
11,000 |
0.72 |
*) early bright emitter types |
01AA: 0.125 A. |
|
Sylvania SX201A |
RCA Radiotron UX201A |
DeForest Audion 401A |
![](Foto's/01A%20(Arcturus).JPG) |
![](Foto's/01A%20(Philco).jpg) |
![](Foto's/UV201A.jpg) |
Arcturus 101A |
Philco
01A |
General Electric UV201A |
![](Foto's/CX301A%20(Cunningham).jpg) |
![](Foto's/MX201A%20(National%20Union%20Crusader).jpg) |
![](Foto's/TC201A.jpg) |
Cunningham CX301A |
National Union
Crusader MX201A |
Televocal TC201A |
![](Foto's/er201A%20(Eveready%20Raytheon).jpg) |
|
|
Eveready Raytheon ER201A |
|
|
|
|