Röhren-tubes U

Noval B9A 9-Pin tube-valve-base-Röhrensockel
UL 84(=45B5) Pentode-Röhre-tube
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UCL 82 (=50BM8) Triode/Pentode
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Stahlröhrensockel
UEL 51 Röhre-tube
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Loctal 8-pin tube-valve-base, B8G
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Y8A 8pin steeltubesocket (8pol Stahlröhrensockel)
very rare UL 11 Pentode-Röhre-tube

Y8A 8pin steeltubesocket (8pol Stahlröhrensockel)
UBF 11 DuoDiode/Pentode
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Noval B9A 9-Pin tube-valve-base-Röhrensockel
UBF 80 (=17N8) DuoDiode/Pentode
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Noval B9A 9-Pin tube-valve-base-Röhrensockel
UCC 85 Pentode
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Octal K8A 8-Pin tube-valve-base
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