Power - Tetrode (NOT beam) ·Tetrode
Quick-heating Mullard VHF power tetrode for intermittent mobile transmitters, producing useful output to approximately 175 MHz.
The Mullard QZ0620 is a quick-heating VHF power amplifier tetrode for intermittent mobile-transmitter service.
International Octal
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
Quick-heating VHF power amplifier tetrode for intermittent mobile-transmitter service.
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.
Maximum Operating Frequency
175 MHz
Maximum Plate Voltage
650 V
f<60MHz
Maximum Plate Voltage
400 V
f=175MHz
Maximum Screen Voltage
200 V
Maximum Plate Dissipation
25 W
Plate Voltage
600 V
ClassC; 60MHz
Plate Current
150 mA
ClassC; 60MHz
RF Output Power
65 W
ClassC; 60MHz
Plate Voltage
400 V
ClassC; 175MHz
RF Output Power
35 W
ClassC; 175MHz