Antique radios, Old Time Radios
PT2
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Country:
Great Britain (UK)
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Brand:
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| Tube type: |
Vacuum Pentode Power/Output |
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Ca. 1925 up to 1945 rare. |
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| Identical to |
PT2
= VR118
= 3777
= KT24
= PT2K
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| Similar
Tubes |
Normally replaceable-slightly different:
KT2
Other base:
PT2_UY
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| First Source
(s) |
Nov.1931 : Wireless World (The), London (WW, 79) advertisement
1935 : British Radio Valves - The Classic Years: 1926-1946 P. 264 & Supplement, p. 41
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Successor Tubes
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KT2
NR39
ARP1
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| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Foo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.2 Ampere / Direct / Battery = |
| Description |
Va=Vg2 <150;
Typ ia=9.5mA, Ig2=1.9, Vg1= -4.5, Rload=20k, Pout= 0.5W.
Also made with 4 pin base+sidecontact.
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| Information source |
Wireless World (The), London (WW, 79) Nov 1934
- - Manufacturers Literature Osram cat. 1936
History of the British Radio Valve to 1940
The Saga of Marconi Osram Valve
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PT2: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20
More ...
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Just Qvigstad
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PT2: osram wireless guide 1931
Giuseppe Antonio Tusini
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):46
Collection of
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