The U52 is directly heated full wave rectifier with a rating of 500 Volts on the anodes. The U52 has a maximum reservoir capacitor rating of 16 µF and a minimum series resistance of 180 Ohms.

The classic envelope is 48 mm in diameter, and excluding the IO base pins, is 113 mm tall.

 
Pin Connections

IO	1	2	3	4	5	6	7	8
	-	f	-	a(2)	-	a(1)	-	f

 
Absolute Maximum Operating Conditions

Rectifier	Vh	Ah	Va	mAa
	5.0	3.0	500	250

Thanks to Frank Philipse for supplying the above datasheet

More

This exhibit was last updated on 12 June 2007 {find valves by name}