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  1. How-To Guides

    Featured How-To Guides

    6
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734 topics in this forum

  1. kgst 1 2 3 4 59

    By kevin gilmore,
    • 1.5k replies
    • 385.2k views

  2. SRX-Plus Build Thread 1 2 3 4 13

    By Blueman2,   
    • 308 replies
    • 86.4k views

  3. balanced preamp 2025 1 2

    By kevin gilmore,
    • 28 replies
    • 7.2k views

  4. Blue Hawaii BJT Build thread 1 2 3 4 10

    By joehpj,
    • 242 replies
    • 74.6k views

  5. Control Stepper Motor with Raspberry Pi Camera

    By eric25,
    • 1 reply
    • 1.4k views

  6. Universal upgrade board for Stax SRD energizers

    By ericj,
    • 5 replies
    • 2.2k views

  7. A new TDA1541A DAC lives in 2025

    By sbelyo,
    • 4 replies
    • 1.8k views

  8. The Multi Amp aka Dynalo Mk2 1 2 3 4 64

    By spritzer,
    • 1.6k replies
    • 439.5k views

  9. MUSES 72320, anyone tried?

    By mtoc,
    • 4 replies
    • 3k views

  10. Building an energizer almost from scratch - advice on clamping zeners 1 2

    By bobkatz,
    • 29 replies
    • 4.4k views

  11. CNC metal machinists (for Stax amp cases) unite? 1 2 3

    By jamesmking,
    • 54 replies
    • 10.6k views

  12. Group Buy - Digital Attenuator (Kevin Gilmore) 1 2 3 4 9

    By sorenb,
    • 223 replies
    • 55.6k views

  13. balanced headphone protector 1 2 3 4 6

    By kevin gilmore,
    • 139 replies
    • 37.9k views

  14. goldenreference low voltage power supply 1 2 3 4 33

    By kevin gilmore,
    • 813 replies
    • 241.6k views

  15. Need ideas for a 8ft x 10ft workshop

    By sbelyo,
    • 16 replies
    • 4.1k views

  16. Universal output HP amp with custom Lundahl transformers

    By justin,
    • 3 replies
    • 1.5k views

  17. Need help with my KGST

    By meeskees,
    • 18 replies
    • 2.9k views

  18. eddie current dht filament

    By kevin gilmore,
    • 4 replies
    • 2.4k views

  19. unbalanced/balanced to balanced tube input 1 2 3

    By kevin gilmore,
    • 65 replies
    • 14.7k views

  20. Kerry Design mini GRHV\GRLV and JoaMat mini T2 Group Buy 1 2 3 4 17

    By mwl168,
    • 421 replies
    • 93.6k views

  21. Anybody here use tinkercad or can design in 3d? I just ordered a 3d printer

    By sbelyo,
    • 3 replies
    • 1.7k views

  22. Kerry Design PSU Build Thread

    By mwl168,   
    • 7 replies
    • 4.7k views

  23. paralleling 2 mechanical relay for a more "robust" relay? (speaker protection device)

    By mrjayviper,
    • 2 replies
    • 1.3k views

  24. Do I need volume control on preamp/headamp if my DAC already has one?

    By mrjayviper,
    • 3 replies
    • 1.5k views

  25. Output Stage Current Requirements for Electrostatic Headphone Amps 1 2

    By JimL,
    • 27 replies
    • 13.1k views
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