The 5R4GY is a high voltage power rectifier and was designed for transmitter use. It has a rating of 180 Watts. The maximum reservoir capacitor is specified at 4 µF and the rectifier needs a series resistance of 250 Ohms to limit peak current.

See also 5R4WGY for a later version of this design.

The classic envelope is 48 mm diameter, and excluding the IO base pins, is 116 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	2.0	750	250

Thanks to Frank Philipse for supplying the above datasheet

This exhibit was last updated on 09 June 2007 {find valves by name}