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5556

Sensibly equivalent to:
GL5556/PJ8
    
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The 5556 or GL-556/PJ8 is an RF power triode with an anode dissipation of 7.5 Watts and full power rating to 6 MHz and reduced ratings up to the top of the HF band at 30 MHz.
The design use is as an RF power amplifier and oscillator and alternatively as a modulator.
The wide glass tube envelope is 37 mm in diameter and, excluding the UX4 base pins, is 90 mm tall.
References: Data-sheet & 4038.

 

Pin Connections
UX4
1
2
3
4
f
a
g1
f

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
μ
4.5
1.1
350
-20
19
-
-
8.5
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated October 05, 2020.
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