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  1. zeka

    Fosi Audio LC30 - Retro VU Meters + AB Switcher

    Instead of guessing and measuring all the combinations, isn't it simpler to open the device and see how the connections for connecting the amplifier and speakers are made inside. :idea:
  2. zeka

    10w class a amp

    Link, please.
  3. zeka

    Fosi Audio LC30 - Retro VU Meters + AB Switcher

    Be very careful, some tube amplifiers are not allowed to work without speakers connected to their output.
  4. zeka

    FX Audio 6j1 tube preamp - a $31 wonder

    You need something like this
  5. zeka

    Fosi Audio ZA3 - Initial Review

    If you wait until next month, a new model will be released soon and you will have to wait again next month... :rflmao:
  6. zeka

    Better laptop power supply for a compact class d tpa3255 amp

    That's not an option for @gasolin75 because he needs something plug & play, not a DIY variant.
  7. zeka

    Better laptop power supply for a compact class d tpa3255 amp

    If you are not skilled with DIY, it is better not to start such a thing, but to get a device that is plug&play.
  8. zeka

    FX Audio 6j1 tube preamp - a $31 wonder

    According to the photo, it seems doubtful to me that it is an original chip, the letters, numbers and logo are not sharply written, they look blurry.
  9. zeka

    FX Audio 6j1 tube preamp - a $31 wonder

    I think it's 1 micro farad, 450V.
  10. zeka

    Nobsound E6 Preamp Uses Directly Heated Tubes

    No, because the FX-audio Tube-01 is still the cheapest tube preamp...:naughty...
  11. zeka

    Yamaha A-s301!

    On what way?
  12. zeka

    FX Audio 6j1 tube preamp - a $31 wonder

    You can use some sort of attenuator, something like this
  13. zeka

    FX Audio 6j1 tube preamp - a $31 wonder

    Something is wrong here, when the potentiometer on the FX is at zero, you should not hear anything on the amplifier.
  14. zeka

    FX Audio 6j1 tube preamp - a $31 wonder

    3. There may be a cold solder somewhere at the base - all solder points should be carefully checked.
  15. zeka

    TPA325x amps: the next step in Class D?

    There are many radio station on the net - Radio Paradise, Radio Garden, JB Radio ....
  16. zeka

    TPA325x amps: the next step in Class D?

    Keep your receiver for FM radio. :thumbsup:
  17. zeka

    FX Audio 6j1 tube preamp - a $31 wonder

    Did you check the power supply to see if it was OK?
  18. zeka

    FX Audio 6j1 tube preamp - a $31 wonder

    What are you talking about?
  19. zeka

    FX Audio 6j1 tube preamp - a $31 wonder

    Tube-01 is not designed to power headphones. You can try like this : Laptop > Topping D10S > Fosi Audio P2 (Tube Headphone Amp) > Headphone
  20. zeka

    FX Audio 6j1 tube preamp - a $31 wonder

    You lucky b.....d.:rockon:
  21. zeka

    FX Audio 6j1 tube preamp - a $31 wonder

    No, it's film capacitor not electrolitic.
  22. zeka

    FX Audio 6j1 tube preamp - a $31 wonder

    What type of power supply goes for that board?
  23. zeka

    FX Audio 6j1 tube preamp - a $31 wonder

    You can make your own power cable with connector like this
  24. zeka

    FX Audio 6j1 tube preamp - a $31 wonder

    A04 is with TPA3251. No, there is no A04 with TPA3255.
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