Data set 01
1940 RCA
Published operating points and test conditions from this source.
Beam Power
Other
from RMA release #
1943 mA
from RMA release #347, Sept. 24, 1943
RCA
832 A
RCA-832 is a heater-cathode type of transmitting As Plate-Modulated Push-Pull R-F Power Amplifier -
r—-f power amplifier with maximum ratings at frequen— factor of
1 A
r—-f power amplifier with maximum ratings at frequen— factor of 1.0
cies as high as
425 V
cies as high as 200 megacycles and with reduced ratings D-C PLATE VOLTAGE 425 max. Volts
at frequencies as high as
250 MHz
at frequencies as high as 250 Mc., Its total plate D-C SCREEN VOLTAGE (Grid No, 2) 250 max. Volts
D~C GRID VOLTAGE (Grid No
-100 V
D~C GRID VOLTAGE (Grid No.1) -100 max. Volts
dissipation is |
68 W
dissipation is |5 watts for class C telegraph service. D-C PLATE CURRENT 68 max. Ma.
Neutralization of the tube is unnecessary in adequately
6 mA
Neutralization of the tube is unnecessary in adequately 0-C GRID CURRENT 6 max. Ma.
PLATE INPUT
22 W
PLATE INPUT 22 max. Watts
shielded circuits. SCREEN |NPUT
3.4 W
shielded circuits. SCREEN |NPUT 3.4 max. Watts
PLATE DISSIPATION
10 W
PLATE DISSIPATION 10 max. Watts
D-C Plate voltage
425 V
D-C Plate voltage 325 425 volts
compact structure of the beam power units, excellent from a fixed supply of
200 V
compact structure of the beam power units, excellent from a fixed supply of 210 200 volts
from a series resistor of**
14000 ohm
from a series resistor of** 7700 14000 ohms
intemal leads are short and heavy in order to minimize from a fixed supply of
-60 V
intemal leads are short and heavy in order to minimize from a fixed supply of -50 -60 Volts
from @ grid resistor o(
25000 ohm
from @ grid resistor o( 21000 25000 ohms
internal lead inductance. The terminal!l arrangement Peak R-F Grid-to-Grid voltage
140 V
internal lead inductance. The terminal!l arrangement Peak R-F Grid-to-Grid voltage 100 140 Volts
provides excellent insulation and s designed to faci- D-C Plate Current
52 mA
provides excellent insulation and s designed to faci- D-C Plate Current 68 52 Ma.
0-C Screen Current 15 16 Ma.
16 mA
0-C Screen Current 15 16 Ma.
litate symmetry of circuit layout. D~C Grid Current {Approx.)
2.4 mA
litate symmetry of circuit layout. D~C Grid Current {Approx.) 2.4 2.4 Ma.
Driving Power (Approx,)
0.15 W
Driving Power (Approx,) 0.11 0.15 Watt
The heaters are arranged to allow operation from Power Output (Approx.)
16 W
The heaters are arranged to allow operation from Power Output (Approx.) 12 16 Watts
either a
3 V
either a 12.6- or a 6,3volt supply.
D~C PLATE VOLTAGE
500 V
D~C PLATE VOLTAGE 500 max. volts
HEATER (A.C. or D.C.): D-C SCREEN VOLTAGE (Grid No,
250 V
HEATER (A.C. or D.C.): D-C SCREEN VOLTAGE (Grid No,2) 250 ®ax. Volts
voltage per Unit
6.3 V
voltage per Unit 6.3 Volts
D-C GRID VOLTAGE (Grid No
100 V
D-C GRID VOLTAGE (Grid No.1} =100 max. Volts
Current per Unit
90 A
Current per Unit 0.8 Ampere D-C PLATE CURRENT 90 max. Ma.
30 ma. 3500 approx. Micromhos PLATE INPUT 36 max. Watts
36 mA
30 ma. 3500 approx. Micromhos PLATE INPUT 36 max. Watts
GRID-SCREEN MU-FACTOR A SCREEN iNPUT
5 W
GRID-SCREEN MU-FACTOR A SCREEN iNPUT 5 max. Watts
DIRECT INTERELECTRODE CAPACITANCES (Each unit): PLATE DISSIPATION
15 W
DIRECT INTERELECTRODE CAPACITANCES (Each unit): PLATE DISSIPATION 15 max. Watts
shielding)
500 V
shielding) 0.05 max. puf D~-C Plate Voltage 400 500 voits
Input
7.5 V
Input 7.5 puf D-C Screen Voltage:
output
200 V
output 3.8 yuft from a fixed supply 250 200 volts
condenser)
-65 pF
condenser) 65 approx. uuf from a fixed supply of =60 -65 Volts
BULB T
25000 ohm
BULB T-16 from a grid resistor of 20000 25000 Ohms
RCA SOCKET See INSTALLATION Jfrom a cathode resistor of
730 ohm
RCA SOCKET See INSTALLATION Jfrom a cathode resistor of 540 730 ohms
Peak R-F Grid-to-Grid voltage
150 V
Peak R-F Grid-to-Grid voltage 124 150 volts
MAXIMUM CCS RATINGS and TYPICAL OPERATING CONDITIONS D-C Plate Current
72 mA
MAXIMUM CCS RATINGS and TYPICAL OPERATING CONDITIONS D-C Plate Current 90 72 Ma.
0-C Screen Current 18 13 Ma.
13 mA
0-C Screen Current 18 13 Ma.
CCS = Continuous Conmercial Service
2.6 mA
CCS = Continuous Conmercial Service 0-C Grid Current (Approx.) 3 2.6 Ma,
Maximum Ratings Are Absolute Values Driving Power (Approx,)
0.18 W
Maximum Ratings Are Absolute Values Driving Power (Approx,) 0.18 0.18 Watt
Power Output (Approx.)
26 W
Power Output (Approx.) 22 26 Watts
Class C Telephony ohms (total} per tube, or
50000 ohm
Class C Telephony ohms (total} per tube, or 50000 ohms per unit. If ad-
D~C PLATE VOLTAGE
500 V
D~C PLATE VOLTAGE 500 magx. Volts "* Connected to modulated plate-voltage supply.
2) 250 max. Volts ## Modulation essentially negative may be used if th
250 V
2) 250 max. Volts ## Modulation essentially negative may be used if the
D-C GRID VOLTAGE (Grid No
-100 V
D-C GRID VOLTAGE (Grid No.1) -100 max. Volts positive peak of the audio-frequency envelope does
D-C PLATE CURRENT
115 mA
D-C PLATE CURRENT 55 max. Ma. not exceed 115% of the carrier conditions.
SCREEN INPUT
3.4 W
SCREEN INPUT 3.4 nax. Watts
PLATE DISSIPATION
15 W
PLATE DISSIPATION 15 ®max. Watts
D-C Plate Voltage
832 V
D-C Plate Voltage 400 500 Voits The 832 may be mounted by means of a special socket
D-C Screen Voliage
200 V
D-C Screen Voliage 250 200 Volts
D-C Grid voltage
55 V
D-C Grid voltage -60 «55 Volts having floating contacts, such as the RCA stock Nos.
Peak R-F Grid-to-Grid Voltage
106 V
Peak R-F Grid-to-Grid Voltage 110 100 volts 9934 or 9935. No. 9934 (UT-106) is made for use at
Peak A-F Grid voltage
107 V
Peak A-F Grid voltage 14 14 Volts frequencies below 60 Mc; No. 9935 {UT-107) has built-
D-C Plate Current
55 mA
D-C Plate Current 55 Py Ma.
0-C Screen Current 6 3 Ma. in by-pass condensers for the heater and th
3 mA
0-C Screen Current 6 3 Ma. in by-pass condensers for the heater and the screen
0-C Grid Current (Apprax.) 0 0 Ma, and is designed for use at frequenc
60 mA
0-C Grid Current (Apprax.) 0 0 Ma, and is designed for use at frequencies above 60 Mc.
Drivnng Power (Approx.)
0.1 W
Drivnng Power (Approx.) 0.1 0.1 Watt
Power Output (Approx.)
8 W
Power Output (Approx.) 7.6 8 Watts The plate terminals take clips with flexible |eads.
seals. The
832 V
seals. The 832 may be mounted in any position. separate source or from a voltage divider of good
series operation from a
12.6 V
series operation from a 12.6~-volt supply or parallel
operation from a
6.3 V
operation from a 6.3-volt supply. Under any condition Shielding of the r—f amplifier stage empioying the
of operation, the heater voltage should not deviate
832 V
of operation, the heater voltage should not deviate 832 is required for stable operation. A convenient
not exceed
100 V
not exceed 100 volts. |f the use of a large resistor necessary in order to realize the full capabilities of
in the tube and by—passed by means of a
65 pF
in the tube and by—passed by means of a 65-upf conden— circuit returns are made to the common cathode connec—
832 can be modulated 100%. The screen voltage may be screen voltage ma
100 V
832 can be modulated 100%. The screen voltage may be screen voltage may also be obtained from the plate-
plate supply. The screen voltage must be modulated that the screen voltage will not exceed
600 V
plate supply. The screen voltage must be modulated that the screen voltage will not exceed 600 voits
Modulation of a fixed screen—voltage supply can be ac- RCA
832 V
Modulation of a fixed screen—voltage supply can be ac- RCA-832 may be operated at maximum ratings in all
grid resistor and fixed supply or grid resistor and frequencies up to
250 MHz
grid resistor and fixed supply or grid resistor and frequencies up to 250 Mc.
FREQUENCY
20 MHz
FREQUENCY 200 | 20 Mc
grid-mod. class C r-f ampljfier
94 A
grid-mod. class C r-f ampljfier 100 | 94 | Per Cent
In class C r-f telegraph service, the
89 A
In class C r-f telegraph service, the 832 may be plate-mod. class C r-famplifier 100 | 89 [ Per Cent
supplied with screen voltage from a fixed supply such class C telegraphy
89 V
supplied with screen voltage from a fixed supply such class C telegraphy 100 | 89 | Per Cent
POWER OUTPUT
2 W
POWER OUTPUT 12 WATTS (APPROX.) AT 2 METERS
C4=
12 V
C4= 25 Jf, 200 VOLTS L3:L4= 12DIA.COPPER TUBING,
C5,Cg =
10 pF
C5,Cg = 3 TO 35 JUpF APPROX. 10" LONG AND
R;=
1 ohm
R;=10000 TO 20000 OHMS, | WATT SPACED 1” BETWEEN
R2=
5 ohm
R2=300 OHMS, 5 WATTS
R3=
12 ohm
R3= 7500 OHMS, SWATTS APPROX. 12“LONG_AND
Characteristic
TRANSCONDUCTANCE, For plate cur. of D-C GRID CURRENT
6 mA
TRANSCONDUCTANCE, For plate cur. of D-C GRID CURRENT 6 ®aX. Ma.
SCREEN-CATHODE CAPACITANCE (Including from a series resistor of
21000 ohm
SCREEN-CATHODE CAPACITANCE (Including from a series resistor of 8300 21000 ohms
As Grid~Modulated Push-Pull R-F Power Amplifier - ¥ The grid-circuit resistance should never exceed
25000 A
As Grid~Modulated Push-Pull R-F Power Amplifier - ¥ The grid-circuit resistance should never exceed 25000
allowed to attain a temperature corresponding to protective resistanceof about
2000 ohm
allowed to attain a temperature corresponding to protective resistanceof about 2000 ohms in series