Data set 01
1938 RCA Transmitting Tubes
Published operating points and test conditions from this source.
Pentode
Other
as high as
15 MHz
as high as 15 megacycles. The 804 has a ceramic base.
D-C Screen Voltage (Grid No. 2)
300 V
D-C Screen Voltage (Grid No. 2). 300 max. Volts
D-C Plate Current
50 mA
D-C Plate Current..... 50 max. Milliamperes
Plate Input
60 W
Plate Input..... 60 max. Watts
Suppressor Input
5 W
Suppressor Input... 5 max. Watts
Screen Input
10 W
Screen Input... 10 max. Watts
Plate Dissipation
40 W
Plate Dissipation . 40 max. Watts
Peak R-F Grid Voltage - 30 30
27 V
Peak R-F Grid Voltage - 30 30 27 Volts
D-C Plate Current - 45 45
45 mA
D-C Plate Current - 45 45 45 Milliamperes
D-C Grid Current (Approx.)
111 mA
D-C Grid Current (Approx.)- 111 Milliampere
Driving Power (Approx.) 1- 0.35 0.3
0.25 W
Driving Power (Approx.) 1- 0.35 0.3 0.25 Watt
D-C Plate Voltage
1250 V
D-C Plate Voltage . 1250 max. Volts
D-C Screen Voltage (Grid No. 2)
300 V
D-C Screen Voltage (Grid No. 2). 300 max. Volts
D-C Grid Voltage (Grid No. 1)
-300 V
D-C Grid Voltage (Grid No. 1) . -300 max. Volts
D-C Plate Current
50 mA
D-C Plate Current . 50 max. Milliamperes
D-C Grid Current
15 mA
D-C Grid Current .-.... 15 max. Milliamperes
D-C Suppressor Voltage (Grid No. 3)
200 V
D-C Suppressor Voltage (Grid No. 3). 200 max. Volts
D-C Plate Voltage- 1000 1000
1250 V
D-C Plate Voltage- 1000 1000 1250 Volts
Peak A-F Grid Voltage- 35 35
35 V
Peak A-F Grid Voltage- 35 35 35 Volts
D-C Screen Current - 15 11
11 mA
D-C Screen Current - 15 11 11 Milliamperes
D-C Plate Voltage - 1000 max
1000 V
D-C Plate Voltage - 1000 max. 1000 max. Volts
D-C Screen Voltage*** - 300 max
200 V
D-C Screen Voltage*** - 300 max. 200 max. Volts
D-C Grid Voltage (Grid No. 1)_ -300 max
-300 V
D-C Grid Voltage (Grid No. 1)_ -300 max. -300 max. Volts
D-C Plate Current - 80 max
80 mA
D-C Plate Current - 80 max. 80 max. Milliamperes
D-C Grid Current- 15 max
15 mA
D-C Grid Current- 15 max. 15 max. Milliamperes
Plate Input - 80 max
80 W
Plate Input - 80 max. 80 max. Watts
Screen Input- 10 max
15 W
Screen Input- 10 max. 15 max. Watts
Plate Dissipation _ 27 max
27 W
Plate Dissipation _ 27 max. 27 max. Watts
D-C Plate Voltage - 1000
1000 V
D-C Plate Voltage - 1000 1000 Volts
D-C Screen Voltage - 220
155 V
D-C Screen Voltage - 220 155 Volts
D-C Plate Current . 75
75 mA
D-C Plate Current . 75 75 Milliamperes
D-C Screen Current ..-. 21
28 mA
D-C Screen Current ..-. 21 28 Milliamperes
D-C Grid Current (Approx.) .. 6
8 mA
D-C Grid Current (Approx.) .. 6 8 Milliamperes
Grid Resistor . 15000
10000 Ω
Grid Resistor . 15000 10000 Ohms
D-C Plate Voltace .. 1250 max
1250 V
D-C Plate Voltace .. 1250 max. 1250 max. Volts
D-C Screen Voltage*** . ...... . 300 max
200 V
D-C Screen Voltage*** . ...... . 300 max. 200 max. Volts
D-C Grid Voltage (Grid No. 1) . -300 max
-300 V
D-C Grid Voltage (Grid No. 1) . -300 max. -300 max. Volts
D-C Plate Current. 95 max
95 mA
D-C Plate Current. 95 max. 95 max. Milliamperes
D-C Grid Current _ ... 15 max
15 mA
D-C Grid Current _ ... 15 max. 15 max. Milliamperes
Plate Input _ ... ... 120 max
120 W
Plate Input _ ... ... 120 max. 120 max. Watts
Screen Input . 15 max
15 W
Screen Input . 15 max. 15 max. Watts
Plate Dissipation ... 40 max
40 W
Plate Dissipation ... 40 max. 40 max. Watts
D-C Plate Voltage .. ... 1250 1250
1250 V
D-C Plate Voltage .. ... 1250 1250 1250 Volts
D-C Screen Voltage .. 300 300
180 V
D-C Screen Voltage .. 300 300 180 Volts
Peak R-F Grid Voltage . 145 150
160 V
Peak R-F Grid Voltage . 145 150 160 Volts
D-C Screen Current . 33 27
23 mA
D-C Screen Current . 33 27 23 Milliamperes
D-C Grid Current (Approx.) 7 7
8 mA
D-C Grid Current (Approx.) 7 7 8 Milliamperes
Grid Resistor .. ... 14300 14300
12500 Ω
Grid Resistor .. ... 14300 14300 12500 Ohms
Power Output (Approx.) .. 64 80
80 W
Power Output (Approx.) .. 64 80 80 Watts
each stated value nf grid voltage should he decreased by
5 V
each stated value nf grid voltage should he decreased by 5 volts and the circuit returns made to the