The EL35 is a larger more powerful audio beam tetrode than the small receiver types. This was used for audio amplifiers and modulators for small Amplitude Modulated transmitters. As a single ended audio stage the valve would deliver 6 Watts and in push pull a pair would form an amplifier capable of generating 21 Watts in class AB.

The classic envelope has a maximum diameter of 41 mm and excluding the IO base pins the valve is 105 mm long.

 
Pin Connections

IO	1	2	3	4	5	6	7	8
	m	h	a	g2	g1	nc	h	k

 
Absolute Maximum Operating Conditions

Beam Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pout	D
	6.3	1.35	250	250	-15.5	72	8.0	15,500	5.0	6W	10%

This exhibit was last updated on 12 January 2004