Лампа DY802

The DY802 is an EHT rectifier for monochrome TV service as colour television tubes usually required 25 kV EHT.
The 1.4 Volt heater was designed to be run from a winding on the transformer suppling the EHT. This would be an HF transformer similar to the line output transformer of a television receiver.
The DY802 is designed for a maximum PIV of 30,000 Volts and will produce an output voltage of 20,000 Volts. The maximum reservoir capacitor is 0.003 μF.