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Tube type: |
PENTODE Power/Output |
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Tube ID = 1900
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| Identical to |
EL34
= 6CA7
= E34L
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| Similar
Tubes |
EL60 (other base)
KT77 (different connections)
EL37 (different connections)
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| First Series |
1950 Tube leaflet collection E.Erb Analysis by original leaflets |
| First Source
(s) |
Aug.1950 : Funk-Technik (FT) # 15
May.1949 : -- Original-techn. papers.
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| Predecessor Tubes |
EL60
EL12
4699
4650
L497D
F443N
EL12/375
EL6
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| Successor Tubes |
1965
EL503
EL131
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935
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| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
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| Description |
Power output pentode, launched mid 1949 by Philips
Many years after the F443N the EL60 appeared as a new 25 W power output pentode, then as all-glass-tube with the 9-pin "key"(Loktal)-base like the EF50. As this wasn't accepted by the market, one year later it became provided with an octal base and then appeared as this most successful EL34, which is in production up to today. [Jacob Roschÿ, 15May 2003]
Text in other
languages (may
differ)
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| Tube prices |
26 Tube prices (visible for members
only)
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Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
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MS
Martin Steyer
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RTT 1974 (Franzis) 13. Auflage
Martin Renz
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Iven Müller
Iven Müller
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