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  1. NOS RCA 12au7A Clear Tops (matched pair)

    Started by Opti-cal, 20-01-2020 14:27
    12au7, nos, rca, tubes, valves 3 Attachment(s)
    • Replies: 1
    • Views: 548
    Last Post: 01-03-2020 17:18
    by Dr-Sardonicus  Go to last post

    Forum:
    Private Exhibitions

  2. Oscillating Preamp?

    Started by Opti-cal, 16-01-2020 08:05
    2 Pages •
    1 2
    12au7, oscillating, preamp, tubes 1 Attachment(s)
    • Replies: 11
    • Views: 1,670
    Last Post: 16-01-2020 11:27
    by anthonyTD  Go to last post

    Forum:
    Blank Canvas

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