The VR135 is a military receiving valve that became reclassified as the CV6 when the common valve listings were drawn-up to remove the problems of a lack of interchange between the UK Armed Forces.

The VT135 is a service version of the commercial DET20 from M-OV. DET stands for Dull Emitter Transmitting. The VR135 is a low voltage high frequency triode with both anode and control grid taken to top caps for maximum isolation. Its intended use was as a modulator valve.See also the American version type 7193.

The wide glass tube envelope is 28 mm in diameter and, excluding the IO base pins, is 73 mm tall.

 
Pin Connections

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

 
Absolute Maximum Operating Conditions

Triode	Vh	Ah	Va	mAa	Pdiss	Pout	freq	f.max
	6.3	0.2	300	25	3.5W	4.25W	50MHz	300MHz

This exhibit was last updated on 16 February 2008