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ecc81

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    Looking for Fosgate Signature Phono Stage Schematic.

    Hello everyone! Has anyone here worked with the discontinued Fosgate Signature Phono Stage? I'm currently searching for the complete schematic diagram of this tube-based phono preamp, either available for download or purchase. I'm deeply interested in studying, restoring, or even possibly...
    • RJA_LEBANON
    • Thread
    • 12at7 12ax7 ecc81 ecc83 fosgate jw fosgate musical surroundings phono preamp phono stage riaa
    • Replies: 1
    • Forum: Tube Audio
  2. E

    Identifying Telefunken tubes

    Hi all! I've almost always bought known, identified, tested tubes from reputable buyers, and avoided the lure of the "huge box of mystery tubes". But yesterday, I came across a giant collection of tubes which seemed NOT to come from a TV repairman, or Soviet MIG engineer, but a guy who...
    • Eric Brandon
    • Thread
    • ecc81 ecc82 ecc83 identification mystery telefunken
    • Replies: 20
    • Forum: Tube Audio
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