▼ Menu

PC86

Sensibly equivalent to:
4CM4
See also:
Valves and their Habits
    
Extras ▼

 

The PC86 is a purpose designed frame-grid triode for use as a UHF oscillator/mixer for Band IV and Band V television reception. Tungsram also made this valve under their own Type designation of 4CM4.
At UHF a coaxial design would normally be used for professional applications, but by connecting the electrodes to several pins the manufacturers achieve the desired result without the complications, and cost, of a disc seal valve and its mounting. Ideal for the less stringent requirements of a domestic appliance.
The anode side view.
The thin glass tube envelope is 20 mm in diameter and excluding the B9A base pins, is 47 mm long.
References: Datasheet & 3002. Type PC86 was first introduced in 1962.

 

Pin Connections
B9A
1
2
3
4
5
6
7
8
9
a
g1
k
h
h
g1
k
g1
a

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
3.8
0.3
175
-1.5
12
4850
3.6
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 09, 2013.
Return to Main Index