Vacuum Tubes for Audio, Music and Radio from BOI AudioWorks
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Various 5691 NOS Brown Base

5691 NOS Brown Base

Description Brown base 5691. Tung-Sol made, re-branded by Richardson Electric as National brand. 5691 is a high quality long-life version of 6SL7.

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Availability Sold out. Please inquire Sold out. Please inquire.
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