The PCF86 miniature VHF TV frequency changer is designed for the triode oscillator to supply 3.2 Volts peak to peak to the pentode mixer section.

The pentode is of frame grid construction.

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

References: Datasheet, ³⁰⁰² & ¹⁰⁴⁰. Type PCF86 was first introduced^¶ in 1960.

 
Pin Connections

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

 
Absolute Maximum Operating Conditions^¶

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	8.0	0.3	190	140	-1.5	8.5	2.7	0.35M	4.5

Triode	Va	mAa
	120	6.0

Thanks to Frank Philipse for supplying the above PDF datasheet

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