CV345 @ The Valve Museum

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CV345

Sensibly equivalent^¶ to:

12E1 VX6044

Series Pass Valves

Extras ▼

The Communications & Electronics Museum Trust Other CV345 exhibits

CV345 is a power output valve designed for the demanding use as a series pass valve in stabilised power supplies. The prototype was the VX6044.

The heavy demands placed on valves used as control elements in regulator circuits makes it vital that the ratings are not exceeded.

The anode has two ribs pressed into the sheet metal. Other maker's products have a more rippled look to the anode.

The copper control grid supports are topped with heat radiating fins.

The classic envelope is 50 mm in diameter, and excluding the IO base pins, is 123 mm tall.

References: Datasheet & ¹⁰⁴⁰. Type CV345 was first introduced in 1946.

Pin Connections

IO	1	2	3	4	5	6	7	8	tc
	-	h	-	g2	g1	-	h	k	a

Absolute Maximum Operating Conditions^¶

Beam Tetrode	Vh	Ah	Va	Vs
	6.3	1.6	800	300

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated June 27, 2018.

shape:classic construction:pinch type:beam.tetrode age:1950.1960 base:io heater:6.3v pins:8 pin:1.- pin:2.h pin:3.- pin:4.g2 pin:5.g1 pin:6.- pin:7.h pin:8.k pin:tc.a

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CV345

Sensibly equivalent¶ to:

12E1 VX6044

See also:

Series Pass Valves

Extras ▼

CV345 is a power output valve designed for the demanding use as a series pass valve in stabilised power supplies. The prototype was the VX6044.

The heavy demands placed on valves used as control elements in regulator circuits makes it vital that the ratings are not exceeded.

The anode has two ribs pressed into the sheet metal. Other maker's products have a more rippled look to the anode.

The copper control grid supports are topped with heat radiating fins.

The classic envelope is 50 mm in diameter, and excluding the IO base pins, is 123 mm tall.

References: Datasheet & 1040. Type CV345 was first introduced in 1946.

Pin Connections

IO

1

2

3

4

5

6

7

8

tc

-

h

-

g2

g1

-

h

k

a

Absolute Maximum Operating Conditions¶

Beam Tetrode

Vh

Ah

Va

Vs

6.3

1.6

800

300

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated June 27, 2018.

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Sensibly equivalent^¶ to:

References: Datasheet & ¹⁰⁴⁰. Type CV345 was first introduced in 1946.

Absolute Maximum Operating Conditions^¶