TubeZone Limited

TubeZone - Valves and sockets for all types of valve powered equipment

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24 December 2012
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4328D 5A-138D STC British Tube

Weight: 150 g

Nice vintage genuine British made STC 4328D tubes. All of them are tested and guaranteed. 

4328D is the same as 5A-136D  and operates the same as Western Electric 310A except it has an octal base and a 7.5V filament. For more information, see data sheet : 

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