The 6X5G full wave rectifier for use in equipment with an HT requirement of up to 70 mA. The valve is also rated for pulse operation. In the latter case the maximum peak inverse volts is 1.25 kV.
Rob comments that the main advantage of the 6X5G rectifier is the heater/cathode insulation that allows the heater to be run from the same winding as the rest of the valves, whereas most HT rectifiers require a separate winding.
This exhibit was originally located in an Air Ministry VHF Wavemeter and re-purposed for audio amplifier service.
The stacked anodes.
Each anode is formed as a cross with the short arms going to the support rods and the longer arms being made into open cylinders. The cathode runs vertically through the centre.
The Crown and AM for the UK Air Ministry.
In normal use the maximum reservoir capacitor is limited to 4 µF and the minimum series resistance has to be 150 Ohms. The maximum value of reservoir capacitor is given as 32 μF and the peak cathode current is 210 mA.