STC / EF37A/5A-157D/CV358-ITT

EF37A/5A-157D/CV358-ITT Click on image(s) above to view larger

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Standard Telephones and Cables Ltd (later STC plc) was a British telephone, telegraph, radio, telecommunications and related equipment R&D manufacturer. During its history STC invented and developed several groundbreaking new technologies including PCM and optical fibres.
ITT 5A/157D is the best sounding EF37A and was the final refinement of the EF36/37 pentode and was used in the front end of the LEAK TL12.1

ITT valves were used mainly in industrial and military applications due to their build quality and reliability.Made in Great Britain with ITT logo, grey metal colour and straight sided

These come in the original ITT blue and white box. If you own or restore the TL12.1 then treat yourself to this excellent audio tube as these are getting harder to find now with no chance of any new production.



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