The UCC85 is the universal supply version of the ECC85 VHF double triode, designed for RF amplifier and local oscillator use in FM radio receivers.

The specifications would also make it suitable for Band III to band one converters, as well as television front ends. The Band III (175 Mhz area) to band one (45 MHz area) converters were made at the launch of commercial television in the Uk in 1955. They enabled existing sets to receive the new transmissions.

The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 48 mm tall.

 
Pin Connections

B9A	1	2	3	4	5	6	7	8	9
	a(2)	g1(2)	k(2)	h	h	a(1)	g1(1)	k(1)	s

 
Absolute Maximum Operating Conditions

Triode	Vh	Ah	Va	Vg	mAa	gm
	26	0.1	200	-2.1	10	6.2

Thanks to Frank Philipse for supplying the above datasheet

This exhibit was last updated on 12 June 2007 {find valves by name}