| Identical to |
UX199
= CX299
= X99
= UX99
= UX-199
= 99
= B_CommontypeUSA_Trio
= SX199
|
| Similar
Tubes |
231D (other characteristic (electr. data))
B_CeCo (can normally be replaced - small diff'ce)
BX (can normally be replaced - small diff'ce)
V99 (other base)
UV99 (other base)
C299 (other base)
230D (other base and data slightly different)
|
| First Series |
Apr.1925 Saga of the Vacuumtube, Tyne page 314 |
| Production stop |
1931 |
| Predecessor Tubes |
UV199
C299
UV99
UV-199
V99
|
|
| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Direct /
-: Battery = /
If: 0.06 Ampere /
Vf 3 Volts /
|
| Description |
Direct heated 3,3-V-Triode for dry batteries: UX199 = CX299 = X99. Nickel-plated contact pins were introduced in 1927 [Tyne 314].
Text in other
languages (may
differ)
|
| Tube prices |
1 Tube prices (visible for members
only)
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
|
|
