CV2214 @ The Valve Museum

▼ Menu

Home Search Indexes Equivalents Articles Adverts & Boxes Timeline Collections Donate Contact

CV2214

Sensibly equivalent^¶ to:

3B/240M

Extras ▼

Unknown The Hampshire Collection

The CV2214 has the 3B/240M as its direct commercial equivalent and is a small VHF transmitting triode. The drive required for full output is 2.5 Watts and the maximum grid current is 35 mA. This suggests the design use is class C and so would be used for AM and CW transmitters. Probably manpack or vehicle based.

The use of multiple grid and cathode connections is to reduce capacitances and thus achieve the 200 MHz frequency.

The wide glass tube envelope is 27 mm in diameter and, excluding the B8B base pins, is 62 mm tall.

References: Data-sheet & ¹⁰⁴⁰.

Pin Connections

B8B	1	2	3	4	5	6	7	8	tc
	h	k	g1	g1	g1	g1	k	h	a

Absolute Maximum Operating Conditions^¶

Triode	Vh	Ah	Va	Vg	mAa	Pdiss	Pout	freq
	6.3	1.1	300	-10.0	90	15W	16W	200 MHz

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated February 21, 2014.

Return to Main Index