el34 - tube data
TRANSCRIPT
BRIMAR ~ALYES EL34
33.3mm I.3Iin max
1 98.Omm 3.86in. moz
OUTPUT PENTODE
1.0. Base
GENERAL
This valve is a high slope output pentode designed for operation in A.C. operated or mobile equipment.
Heater Voltage Heater Current
Vh In
6.3 V 1.5 A
RATINGS
Maximum Anode Dissipation pa(max> 25 W Maximum Screen Grid Dissipation PS2(max) 8 W Maximum Anode Supply Voltage Va(b)max 2 kV Maximum Anode Voltage Va(max) 800 V Maximum Screen Grid Supply Voltage V82(b)max 800 V Maximum Screen Grid Voltage V8z1max) 500 V Maximum Heater to Cathode Voltage Vh-k(max) 100 V Maximum Cathode Current Ik(max) 150 mA Maximum Grid 1 to Cathode Resistance Rgl_k(max) 500 kS2 Maximum Heater to Cathode Resistance Rh-k(max) 20 k12
INTER-ELECTRODE CAPACITANCES
Output couc 8.4 pF Input cin 15.2 pF Anode to Grid 1 ca_gl <1.0 pF Grid 1 to Heater cgl_h <1.0 pF Heater to Cathode ch-k 11 pF
* Measured in fully shielded socket without can.
Anode Voltage Screen Grid Voltage Anode Current Screen Grid Current Control Grid Voltage Mutual Conductance Anode Resistance (Sva/Sia) Inner Amplification Factor
CHARACTERISTICS
Va V82 la Igz Vg, $m ra µgi-sz
250 V 250 V 100 mA 15 mA
—12.2 V 11 mA/V 15 kSl 11
G. May, 1963 Issue 1 Page t
THORN -AEI RADIO VALVES &TUBES LTD.
EL34 VALVES BgIMAR
OPERATION AS CLASS A SINGLE VALVE AMPLIFIER
Anode Voltage Va 250 300 V Screen Grid Voltage V82 250 300 V Suppressor Grid Voltage VS3 0 0 V Cathode Resistor Rk 106 190 i2 Anode Load Resistance Ra 2 3.5 kS2 Anode Current (Zero signal) la(o) 100 83 mA Screen Grid Current (Zero signal) I82(o) 15 13 mA R.M.S. Input Voltage (for Pouc = 50mW) Vin(r.m.s.) (Pout = 50mW) 500 450 mV R.M.S. Input Voltage Vin(r.m.s.) 8 8.2 V Power Output *Pouc 11 11 W Total Distortion *Dcoc 10 10
PUSH PULL OPERATION FOR TWO VALVES
(Fixed Bias)
Supply Voltage Vb 375 400 V Suppressor Grid Voltage V83 0 0 V Screen Grid Resistor R82 600t 800t S2 Control Grid Voltage Vgl —33 —36 V Anode Load Resistance Ra-a 3.5 3.5 k12 Total Anode Current (Zero signal) la(o)coc 60 60 mA Total Screen Grid Current (Zero signal) I$z(o)coc 9.4 9 mA R.M.S. Input Voltage Vin(gl-g1)r.m.s. 46.7 50 V Power Output Pouc 48 54 W Total Distortion Dcoc 2.8 1.6 Total Anode Current (Maximum Signal) Ia(max.sig.)coc 215 221 mA Total Screen Grid Current
(Maximum Signal) IS2(max.sig.)tot 47 46 mA
* Under Speech and Music conditions. t Screen-grid resistor common to both valves.
G. May, 1963 Issue 1 Page 2
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G. October, 1963 Issue 1 Page 3
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G. October, 1963 Issue 1 Pa;e 4