Philips E446 Vacuum Pentode Tube.
Europe 5-Pin B5
Early Brown base
On market since 1933
Tested on AVO 160 With:
Uf: 4 V~
Ua: 200 V
Ug1: - 2 V
Ug2: 100 V
Result: Ia = 3.5 mA (3 = 100 %)
S = 2.5 mA/V (2.3 = 100 %)
All our tubes are tested for shorts and gas leak.
Feel free to visit my store ‘euromoments’ for more vintage tubes
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