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Bastard Amp :(

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  • #1

    Bastard Amp :(

    71 Bassman, I put rca tubes in all the sockets and Bias the amp.
    sounds ok but not like it should so I tear it down. and do the filter supply caps and resistors
    and then flip the POS over...............
    Its a wonder the friggen phase inverter even works.
    dont know what the hell they did , But im tearing the bastard down to nothing [img]images/icons/mad.gif[/img]
    and going to black face it with a few mods.
    seems the only thing they got right was the bias mod.
    soldering was hidious at best, no solder sucking and blow torch soldering.
    Christ Kill Me please [img]graemlins/rant.gif[/img] [img]graemlins/images/icons/mad.gif[/img]
    I have an extra lic in amature radio
    I will translate, I know shit [img]graemlins/images/icons/mad.gif[/img]
    atleast I have orange drops
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  • #2
    Re: Bastard Amp

    Im pissed [img]graemlins/refuse.gif[/img]

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    • #3
      Re: Bastard Amp

      not like no one cares But look at the time.
      I got the pig running and did up the phase inverter and driver and a few other things .
      to tired to bias, But it sounds good.
      going to poke around and maybe rip into the tone stack tomorrow and see what the hell I can do there.
      when I bought this I was told it was a 68
      Bullchit. should have known when the date code was missing.
      these make great platforms for marsh clones
      I may put some kt66 in it tomorrow to see the tone
      it has all RCA tubes [img]images/icons/grin.gif[/img] now
      well the bass channel sounds pissaH now it sucked b4 and the regular channel is cleen and I think when I hit it with pedal it will have a chit load of head room.
      Had a small problem with the feed back resistor, there was a 1 meg in there and I was getting squeel so I opend it and squeel was gone.
      slaped a 2.2 meg in there and its otay
      I may unsolder the resistor of the bass pot and leave it open to see how the amp will sound
      I forget the name of that mod.
      owell Im pooped
      [img]graemlins/fart.gif[/img]

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      • #4
        Re: Bastard Amp

        Unsoldering the resistor on the bass pot affects the midrange. Stock on some fenders is 6.8k - you can vary it from zero to 25k and get a lot of different tones.

        Pete

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        • #5
          Re: Bastard Amp

          I solderd the resistor back.
          think Im goint to tweak the amp
          the deep channel has grind and sounds
          and the other channel has nice cleen tone.
          It was breaking up a little to early for Me

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