The UCF80 appears to be a 100 mA heater version of the famous PCF80 used extensively as oscillator/mixer in VHF television receivers.

The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 49 mm tall.

 
Pin Connections

B9A	1	2	3	4	5	6	7	8	9
	a(t)	g1	g2	h	h	a	k,s,g3	k(t)	g1(t)

 
Absolute Maximum Operating Conditions

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	27.0	0.1	170	170	-5.5	5.2	1.5	70,000	2.1

Triode	Va	Vg	mAa
	100	-2.0	14.0

This exhibit was last updated on 28 May 2002