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202KDEL34B
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VALVULA EL 34B SHUGUAND ELECTRON
Compatible con EL 34A
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VALVULA EL 34B SHUGUANG ELECTRON
VALVULA EL 34B SHUGUAND ELECTRON
Compatible con EL 34A
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Tetrode: EL34-B
DESCRIPTION
Plate power dissipation of EL34-B can reach 30W, whereas EL34A is 25W. EL34-B belongs to tetrode
tube compared to pentode tude of EL34A. g1 and g2 of EL34-B is not exactly aligned opposite to each
other and it is used in linear power amplification.
SPECIFICATION
Filament Heating
UH………………6.3V
IH………………..1.5A
Maximum Ratings
Plate voltage……………..800V
Second grid voltage…………..500V
First grid voltage……………..-100V
plate power dissipation………….25W
Second grid power dissipation……8W
Cathode current………………….150mA
First grid resistance
For selt-biasing………………..0.7MW
For fixed-biasing………………0.5MW
Filament voltage between cathode…………100V
Temperature of glass
envelop………………250 oC
Capacitances
Input capacitance………………..15.2pF
Output capacitance……………….8.4pF
Muller capacitance……………….1.1pF
First grid-heater capacitance……..1.0pF
Heater filament capacitance……....10pF
DC Parameters
Ua………………250V
Ug2……………..250V
Ug3………………..0V
-Ug1…………….12.2V
Ia……………….100mA
Gm……………..11mA/V
ri………………..15kW
ug1-g2…………..11