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19 January 2019 

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Selected category: Tubes, Valves and Accessories

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3B-240M STC

STC logo UK NOS. Tested and warranty. Audio triode with Loctal base 89MA. Data: Vf=6.0V, Va=300V, S=27mA/V. A high gain, high trans conductance output triode. 37 watts output from only 325 volts anode voltage. We saw these in audio amplifiers in Japan. Photo WWW.TAVE.CO.UK

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