DET22 @ The Valve Museum

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DET22

Sensibly equivalent^¶ to:

CV273 CV315 CV5956 EC55 ME1001 TD03-10

See also:

Planar Electrode Valves for VHF - CV273 short entry

Extras ▼

Osram The John Lawrence Collection Other DET22 exhibits

The DET22 is a UHF disc seal triode developed during WWII. The heater and cathode are opposite the main envelope. The grid has a circular connection to the flat internal metal mesh. The anode appears to be copper and has a flat surface facing the grid. It is rated at 10 Watts dissipation.

A grounded grid configuration would allow for a two cavity mechanical design.

This valve is rated at 600 MHz but its extended maximum frequency of 4 GHz made it a natural choice for microwave designs.

Unlike other versions of this valve the Osram process gives a flat top and a smaller envelope length by 5 mm.

The planar envelope is 15 mm in diameter and 55 mm long.

References: Data-sheet & ¹⁰⁰⁵. Type DET22 was first introduced in 1945. See also 1945 adverts.

Absolute Maximum Operating Conditions^¶

Triode	Vh	Ah	Va	mAa	Pout	Pdiss	freq	f.max
	6.3	0.4	350	40	3	10	600	4000

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated April 05, 2015.

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