TUBE 7094

GENERAL DESCRIPTION


picture 7094 RCA-7094 is a high-perveance beam power tube with high power gain. It is useful in fixed and mobile equipment as an rf power amplifier and oscillator, as well as an af power amplifier and modulator.

The 7094 has a maximum plate dissipation of 125 watts under ICAS conditions in modulator service and in cw service. In the latter service it can be operated with full input to 60 Mc and with reduced input to 175 Mc.

Because of its high power gain, the 7094 can be operated with relatively low plate voltage to give large power output with small driving power.

Small and compact for its power-output capability, the 7094 has a rugged button-stem construction with short internal leads, internal shield connected to grid No.2 within the tube, triple base-pin connections for grid No.2 to permit effective rf grounding, plate structure with large radiating fins for effective cooling, and ceramic mount supports to provide additional sturdiness to the electrode structure. The plate lead is brought out of bulb to a rigid terminal opposite the base to facilitate separation of input and output circuits.


TECHNICAL SPECIFICATIONS
ELECTRICAL
Heater, for Unipotential Cathode:
Voltage (AC or DC)
Current at 6.3 volts

6.3 ± 10% volts
3.2 amperes
Transconductance (Approx.) for
plate volts = 300, grid-No.2
volts = 300, and plate ma = 250


10000 μmhos
Mu-Factor, grid No.2 to grid No.1
for plate volts = 300, grid-No.2
volts = 300, and plaste ma = 250


7
Direct Interelectrode Capacitances
(With no external shield):
Grid No.1 to plate
Grid No.1 to Grid No.2 &
internal shield
Grid No.1 to cathode and heater
Grid No.2 & internal shield
to plate
Grid No.2 & internal shield
to cathode and heater
Plate to cathode and heater


0.5 μμf

9 μμf
9 μμf

9 μμf

2.8 μμf
1.8 μμf
MECHANICAL
Operating Position Any
Maximum Overall Length 5"
Seated Length 4.44" ± 0.08"
Maximum Diameter 2.56"
Base Jumbo-Button Septar 7-Pin (JETEC No.E7-46)
Socket NATIONAL HX29
Weight (Approx.) 6 oz
Bulb Temperature (At hottest point) 250 Max. °C
Cooling




Free circulation of air around the tube is re-
quired. Under operating conditions at maximum
ratings, some forced-air cooling will be required
from a small fan to prevent exceeding the speci-
fied maximum bulb temperature.
Specifications may change without notice

THIS TUBE IS USED IN THE FOLLOWING SHORTWAVE BROADCAST TRANSMITTERS
Manufacturer Transmitter specifications Power in kW
RCA BHF-100A 100
BHF-100B 100


THIS TUBE IS AVAILABLE FROM
Manufacturer Rebuilder Distributor


Richardson Electronics


Vacuum Tubes, Inc.


PRICE LEVEL (US$)
1 2 3 4 5 6
0 - 10 10 - 100 100 - 1000 1000 - 10,000 10,000 - 50,000 50,000 - 100,000