Hochfrequenzröhren Glas

UX5 Pin tube-valve-base, 9mm Topcap
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Special socket with Top Caps
better datas than 833A
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Octal K8A 8-Pin tube-valve-base with Topcap
EL 3010 Special Pentode
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Septar base
close to FU32-FU-32 chinese tube
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E180F Langlebe Röhre bei BTB zum Hammerpreis!
made by Tesla in der EU, spezifiziert damals ...

Loctal 9-pin tube-valve-base, B9G, Schlüsselröhre
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