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QQV07/50 / CV5847 double tetrode

Size This valve measures 100x42mm overall and has a 7 pin base.

 

  Frequency multiplier Class C telephony Class C telegraphy  
Max anode voltage (f<250MHz) 750 600 750 V
Max anode voltage (f=500MHz) 600 480 600 V
Max screen voltage 300 300 300 V
Max control grid voltage -175 -175 -175 V
Max cathode current 2x 130 2x 130 2x 150 mA
Max anode dissipation 2x 25 2x 16.7 2x 25 W
Max screen dissipation 2x 3.5 2x 2.3 2x 3.5 W
Max control grid current 2x 5.0 2x 5.0 2x 5.0 mA
Max control grid dissipation 2x 1.0 2x 1.0 2x 1.0 W
Heater voltage 12.6/6.3V
Heater current 900ma/1.8A

 

Pin Function
1 Heater
2 Control grid "
3 Screen grids
4 Cathode, beam plates, shield
5 Heater centre tap
6 Control grid '
7 Heater
TC1 Anode '
TC2 Anode "
QQV07/50
Above: Mullard QQV07/50. Below: CV5847, marked KQDD/K, 81-06
CV5847

This file was last modified 15:12:57, Tuesday September 02, 2014