6SQ7 EL34 Tube Audio Amplifier: Ground and Wiring Design.

Тәжірибелік нұсқаулар және стиль

This video covers how I setup a multi point star grounding design, why grounding is so important and then cover the basics of the general layout I have decided on.
This is a replicate of my personal favorite, a 6SQ7-EL34 amp with modifications to make it more "public friendly". This series will document the build in detail, explain all the design considerations, dig into tube data sheets and other criteria that makes this little amp sound so amazing!
I'll get the schematics and BOM up on the website this week as I start on the actual build series.

Пікірлер: 25

  • @martinburns7928
    @martinburns79284 ай бұрын

    Two Years Ago ? I've been searching for you going on at least two years, Glad to have found your sight, Right off the bat, Your explanatory about cutting to the chase by not involving redundant simplicities impressed me immediately, Godspeed Miss

  • @SkunkieDesignsElectronics

    @SkunkieDesignsElectronics

    4 ай бұрын

    Welcome aboard!

  • @primepreowned1
    @primepreowned12 жыл бұрын

    Great Job 👍

  • @kubockferre5532
    @kubockferre5532 Жыл бұрын

    good job i love your work

  • @SkunkieDesignsElectronics

    @SkunkieDesignsElectronics

    Жыл бұрын

    Thank you so much 😀

  • @roroseppel2077
    @roroseppel20772 жыл бұрын

    Very nice job, I really enjoy your videos ! You could also wire the filaments wire with the same colour in respect to pin 2 (Blue) and pin 8 (Yellow) of the EL34

  • @SkunkieDesignsElectronics

    @SkunkieDesignsElectronics

    2 жыл бұрын

    Good tip!

  • @ianmorgan6104
    @ianmorgan61042 жыл бұрын

    Great video, would you call that parallel heater wiring to the tubes? Thanks

  • @SkunkieDesignsElectronics

    @SkunkieDesignsElectronics

    2 жыл бұрын

    Hmm I usually just call it heater wiring but sometimes slip and call it heater windings, probably because they are "wound" or twisted as a pair?

  • @ianmorgan6104

    @ianmorgan6104

    2 жыл бұрын

    Oh what I meant was are the heaters wired in parallel or series on that particular amp? Apologies for not being clearer :)

  • @Warclock07
    @Warclock072 жыл бұрын

    Does the volume pot use for sweet spot? I saw some amps have and others don't. What exactly the benefit of it?

  • @SkunkieDesignsElectronics

    @SkunkieDesignsElectronics

    2 жыл бұрын

    I like for my amps to use between 40-70% position on the knob with the intended speakers.

  • @Warclock07

    @Warclock07

    2 жыл бұрын

    @@SkunkieDesignsElectronics Without the pot, is it like 100% all the time?

  • @SkunkieDesignsElectronics

    @SkunkieDesignsElectronics

    2 жыл бұрын

    @@Warclock07 Yes, you would have to control the volume with the input signal strength, like with an external passive control or an active one like a pre-amp.

  • @Warclock07

    @Warclock07

    2 жыл бұрын

    @@SkunkieDesignsElectronics Thank you so much. The schematic of my amp has the pot but there is non on the amp. I will install one to see what happen.

  • @nuttyl283
    @nuttyl2832 жыл бұрын

    Ground is important but some tubes need directly chassis ground from pin not electrical ground. Shortest path ground from electrical ground to chassis ground is very important.

  • @SkunkieDesignsElectronics

    @SkunkieDesignsElectronics

    2 жыл бұрын

    Such as? That seems like an invitation to a ground loop.

  • @nuttyl283

    @nuttyl283

    2 жыл бұрын

    @@SkunkieDesignsElectronics Pin 5 of 4P1L and many russian tubes.

  • @SkunkieDesignsElectronics

    @SkunkieDesignsElectronics

    2 жыл бұрын

    @@nuttyl283 Possibly if you are trying to use a common transformer winding on a center tapped direct heated tube, but that seems like a very rare situation. Do you have a link with more info on this issue? I can't find anything on a google search that covers this. I'm trying to keep things simple on this channel and not confuse viewers with rare/obscure situations we are not delving into. In any case I have seen, using the chassis itself for multiple ground points (especially without running a wire from this point to the star ground) is a very, very bad idea.

  • @nuttyl283

    @nuttyl283

    2 жыл бұрын

    @@SkunkieDesignsElectronics such as 7W7 en.wikipedia.org/wiki/List_of_vacuum_tubes

  • @nuttyl283

    @nuttyl283

    2 жыл бұрын

    @@SkunkieDesignsElectronics I think chassis pin of some tubes just help release noise to chassis ground to earth. There is no ground loop due to it just a shield of the tube design. As long as electrical ground is not loop. there should be no hum or buzz. PS ferrite beads of all tube pin wiring except filament is useful too.

  • @markmckelvey6515
    @markmckelvey65152 жыл бұрын

    Is that a body work tool?

  • @SkunkieDesignsElectronics

    @SkunkieDesignsElectronics

    2 жыл бұрын

    It's a dolly, can be used for body or or any kind of metal fab work.

  • @SenakaSandagomiWeerawardena
    @SenakaSandagomiWeerawardena2 жыл бұрын

    I was waiting for this Mam thanks 😊. Please reply to my email.

  • @SkunkieDesignsElectronics

    @SkunkieDesignsElectronics

    2 жыл бұрын

    I don't see any email/message, please resend.

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