The E88C is a tiny triode that was purpose designed for use in UHF television tuners. The UHF television bands rise to 900 MHz and with weak signals the RF amplifier had to have as low a noise figure as possible. The RF amplifier would be used at a high anode current to reduce the noise figure, hence the maximum anode current of 12.5 mA.

The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 46 mm tall.

 
Pin Connections

B9A	1	2	3	4	5	6	7	8	9
	g	k	g	h	h	g	g	a	g

 
Absolute Maximum Operating Conditions

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	6.3	0.155	160	-1.25	12.5	4800	13.5

Thanks to Frank Philipse for supplying the above datasheet

This exhibit was last updated on 10 June 2007 {find valves by name}