CV4048 @ The Valve Museum

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CV4048

Sensibly equivalent^¶ to:

0G3 85A2 CV449 M8090 QS1212 VX8098

EEV CV4048 Box

Extras ▼

English Electric The Hampshire Collection Other CV4048 exhibits

The CV4048 is a small, special quality voltage stabiliser. Unlike most CV valves this one has the manufacturers name clearly printed on the bulb.

The striking voltage is 115 Volts and the maintaining voltage is 85 Volts. For a tube current variation of 1 mA to 10 mA the voltage regulation is 4 Volts.

This valve would have been used to directly stabilise the voltage for an oscillator or be employed as a voltage reference for a stabilised supply. In the latter case the tube would be operated at constant current.

The thin glass tube envelope is 17 mm in diameter and excluding the B7G base pins, is 45 mm long.

References: Datasheet. Type CV4048 was first introduced in 1959.

Pin Connections

B7G	1	2	3	4	5	6	7
	a	k	ic	k	a	ic	k

Absolute Maximum Operating Conditions^¶

Stabiliser	Va
	85

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated October 16, 2013.

shape:thin.glass.tube construction:all.glass type:voltage.stabiliser age:1950.1960 base:b7g pins:7 pin:1.a pin:2.k pin:3.ic pin:4.k pin:5.a pin:6.ic pin:7.k

▼ Menu

CV4048

Sensibly equivalent^¶ to:

0G3 85A2 CV449 M8090 QS1212 VX8098

See also:

EEV CV4048 Box

Extras ▼

The CV4048 is a small, special quality voltage stabiliser. Unlike most CV valves this one has the manufacturers name clearly printed on the bulb.

The striking voltage is 115 Volts and the maintaining voltage is 85 Volts. For a tube current variation of 1 mA to 10 mA the voltage regulation is 4 Volts.

This valve would have been used to directly stabilise the voltage for an oscillator or be employed as a voltage reference for a stabilised supply. In the latter case the tube would be operated at constant current.

The thin glass tube envelope is 17 mm in diameter and excluding the B7G base pins, is 45 mm long.

References: Datasheet. Type CV4048 was first introduced in 1959.

Pin Connections

B7G

1

2

3

4

5

6

7

a

k

ic

k

a

ic

k

Absolute Maximum Operating Conditions^¶

Stabiliser

Va

85

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated October 16, 2013.

Return to Main Index

▼ Menu

CV4048

Sensibly equivalent¶ to:

0G3 85A2 CV449 M8090 QS1212 VX8098

See also:

EEV CV4048 Box

Extras ▼

The CV4048 is a small, special quality voltage stabiliser. Unlike most CV valves this one has the manufacturers name clearly printed on the bulb.

The striking voltage is 115 Volts and the maintaining voltage is 85 Volts. For a tube current variation of 1 mA to 10 mA the voltage regulation is 4 Volts.

This valve would have been used to directly stabilise the voltage for an oscillator or be employed as a voltage reference for a stabilised supply. In the latter case the tube would be operated at constant current.

The thin glass tube envelope is 17 mm in diameter and excluding the B7G base pins, is 45 mm long.

References: Datasheet. Type CV4048 was first introduced in 1959.

Pin Connections

B7G

1

2

3

4

5

6

7

a

k

ic

k

a

ic

k

Absolute Maximum Operating Conditions¶

Stabiliser

Va

85

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated October 16, 2013.

Return to Main Index

Sensibly equivalent^¶ to:

Absolute Maximum Operating Conditions^¶