The HR9 is a high voltage (EHT) rectifier that was still marked as current production in the mid 1960s. The base is International Octal and the construction is on a glass pinch.

The maximum peak inverse voltage is 14kV. The minimum effective series resistance needs to be 100k Ohms and the maximum reservoir capacitor is 0.1 µF

The wide glass tube envelope is 55 mm in diameter and, excluding the IO base pins, is 222 mm tall.

 
Absolute Maximum Operating Conditions

Rectifier	Vh	Ah	Va	mAa
	4.0	1.3	15000	8

This exhibit was last updated on 06 August 2006