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Tore Vibe...No Reverb

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  • Tore Vibe...No Reverb

    I just finished building the Weber kit Tore-Vibe, the only substitution was a Heyboer OT. The tremolo works just fine, but I get no reverb. The only reverb pot that does anything is the dwell control - it adds some distortion as I crank it up. I'll link to the schematic, but they don't list voltages on the schematic, so I really don't know if anything is way off. If anyone can point me in the right direction, I'd greatly appreciate it. I tried swapping in a different reverb pan, a 6V6 tube and a different 12AT7, but it didn't help. Here are my voltages all referenced to ground:

    V1 - 12AX7
    p1 - 196
    p2 - 0
    p3 - 1.50
    p4 p5 - 3.4 AC
    p6 - 300
    p7 - 137
    p8 - 153
    p9 - 3.4 AC

    V2 - 12AT7
    p1 - 135
    p2 - 0
    p3 - 2.24
    p4 p5 - 3.4 AC
    p6 - 138
    p7 - 0
    p8 - 2.42
    p9 - 3.4 AC

    V3 - 6K6GT
    p1 - 0
    p2 - 3.4 AC
    p3 - 351
    p4 - 359
    p5 - 0
    p6 3.4 AC...I wired up the heater to p6 by mistake
    p7 - 3.4 AC...connected to p6
    p8 - 25.9

    V4 - 12AX7
    p1 - 308
    p2 - 139
    p3 - 157
    p4 p5 - 3.4 AC
    p6 - 198
    p7 - 0
    p8 - 1.55
    p9 - 3.4 AC

    V5 - 12AX7
    p1 - 148...Tremolo pedal off
    p2 - 0
    p3 - 1.53
    p4 p5 - 3.4 AC
    p6 - 304
    p7 - 147
    p8 - 151
    p9 - 3.4 AC

    Here's the schematic and layout:

    https://taweber.powweb.com/store/5h15t_schem.jpg

    https://taweber.powweb.com/store/5h15t_layout.jpg
    Last edited by Diablo; 03-05-2009, 06:22 AM.

  • #2
    Instead of a sea of numbers, why don;t we troubleshoot it?

    Did yuo correct the wiring on the 6K6? Pins 2 and 7 need the heater voltage, not pin 6.

    You have to reverb function. SO is it the drive end or the return end that doesn;t work? Turn it on and turn the reverb up midway. Now with the two cables unplugged from the reverb pan, touch the tip of each plug with your finger. One should hum out the speaker. That is the return. It should connect to the OUTPUT jack on the reverb pan. Were the plugs in the right jacks?

    If neither plug hummed, then your return circuit is not working.

    Then the remaining cable is the drive circuit. Connect it to a small speaker. Any sound come out when you play? If no sound, the drive isn;t working. Fix the heater wiring first.
    Education is what you're left with after you have forgotten what you have learned.

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    • #3
      Originally posted by Enzo View Post
      Instead of a sea of numbers, why don;t we troubleshoot it?

      Did yuo correct the wiring on the 6K6? Pins 2 and 7 need the heater voltage, not pin 6.

      You have to reverb function. SO is it the drive end or the return end that doesn;t work? Turn it on and turn the reverb up midway. Now with the two cables unplugged from the reverb pan, touch the tip of each plug with your finger. One should hum out the speaker. That is the return. It should connect to the OUTPUT jack on the reverb pan. Were the plugs in the right jacks?

      If neither plug hummed, then your return circuit is not working.

      Then the remaining cable is the drive circuit. Connect it to a small speaker. Any sound come out when you play? If no sound, the drive isn;t working. Fix the heater wiring first.
      Thanks Enzo. While you were answering my question, I was trouble shooting it and discovered....I'm an idiot. I had the reverb pan connected backwards. I even very carefully connected my spare reverb pan backwards too! You were right as rain, as usual. It sounds great, except I can't turn it up since it's 1 am and my wife is sleeping.

      Comment


      • #4
        Hi Diablo

        I'm keen to hear a soundbyte or two if you can manage that
        Building a better world (one tube amp at a time)

        "I have never had to invoke a formula to fight oscillation in a guitar amp."- Enzo

        Comment


        • #5
          Originally posted by tubeswell View Post
          Hi Diablo

          I'm keen to hear a soundbyte or two if you can manage that
          I don't have a clue as how to record sound bytes to the computer.
          Can you explain the equipment required and what's involved?

          Comment


          • #6
            Originally posted by Diablo View Post
            I don't have a clue as how to record sound bytes to the computer.
            Can you explain the equipment required and what's involved?
            Well lately, when I am making an effort, I use an SM57 6 inches away from the speaker. I put the mic through my mixing desk, and line out from that into the 3.5mm stereo mini-jack mic input in my Mac (I don't bother with fancy interfaces between the mic/desk and the computer - altho' if I did, I would probably use a firewire recording interface, because they do a better job than USB of minimizing time-lag when you are overdubbing). Anyway the desk gives enough of a boost to the mic signal to make it good enough for the Mac to process reasonably. The software I use (since I am cheap) is the stock Garageband which ships with the Mac, which is good enough for basic recordings. I watch the levels on my desk and in GB to make sure the signal isn't clipping. Then I use iTunes to convert the ACC files from GB into .mp3 files for uploading. If you keep the clips shorter than 30 seconds, they don't make for very big .mp3 files.
            Building a better world (one tube amp at a time)

            "I have never had to invoke a formula to fight oscillation in a guitar amp."- Enzo

            Comment


            • #7
              Thanks Tubeswell for explaining, but I'm a little too dense for all that..

              Perhaps I'll discuss this with one of my computer/EE friends at work to set me up. It won't be soon I'm afraid.

              Comment

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