IW4-500 @ The Valve Museum

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IW4-500

Sensibly equivalent^¶ to:

CV1039 R3 UU5

Extras ▼

Mullard G8LSD Valve Collection Other IW4-500 exhibits

The IW4-500 is an indirectly heated full wave rectifier that was designed to work with a maximum reservoir capacitor of 16 µF and to have an effective series resistance of 150 Ohms. At 500 Volts and 125 mA this rectifier would supply the needs of equipment of between 50 and 60 watt consumption. The cathode is connected to one side of the heater.

The classic envelope is of classic shape and 42 mm in diameter. The length excluding the B4 base pins, is 96 mm.

References: Data-sheet, ¹⁰⁴⁰ & ¹⁰⁴³. Type IW4-500 was first introduced in 1939. See also 1939 adverts.

Pin Connections

B4	1	2	3	4
	a(1)	a(2)	h,k	h

Absolute Maximum Operating Conditions^¶

Rectifier	Vh	Ah	Va	mAa
	4.0	2.5	500	120

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated January 31, 2013.

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