Power - Beam (NOT sweep) (over 1000V 100W) ·BeamPower
Forced-air-cooled ceramic 250-watt transmitting beam tetrode designed for high-frequency service at frequencies extending to approximately 1.2 GHz.
Indirectly heated ceramic 250 W transmitting beam tetrode for high-frequency service, rated to 1200 MHz and cooled by forced air.
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
Promoted ratings taken from printed Maximum Ratings blocks; source filename/content mismatch handled by printed designation.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Control-grid to cathode capacitance
27 pF
Published interelectrode capacitance
Plate-to-cathode capacitance
5 pF
Published interelectrode capacitance
Maximum frequency
1200 MHz
Published maximum/rated frequency
Heater data
6 V; heater current <3.2 A
Published heater voltage/current range or limit
Data set 02
Published operating points and test conditions from this source.
Heater voltage
6 V
Maximum plate voltage
2000 V
Maximum screen-grid voltage
300 V
Maximum plate dissipation
250 W
Maximum screen-grid dissipation
12 W
Maximum control-grid dissipation
2 W
Maximum frequency
1200 MHz
Heater current
- to 3.2 A
Maximum
Heater warm-up time
60 s
Control-grid to cathode capacitance
27 pF
Anode to cathode capacitance
5 pF
Transconductance
10000 uS
Screen-to-control-grid voltage ratio
5