Tuesday 5 March 2013

D*A*M Gravity Isolator




13 comments:

  1. Hmmm not heard of this one. Can't find any info on it either.

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    Replies
    1. According to FSB:

      "It's MKII circuit with fixed fuzz and tone section on the output similar to MKIII."

      http://freestompboxes.org/viewtopic.php?f=7&t=21864&p=216533&hilit=gravity+isolator#p216533

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  2. Where is the schematic. Something is amiss.

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    Replies
    1. Its a pdf link below the pics on the FSB link.

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    2. There is an error. The caps to "adjust" are coming off from Q3 collector, while they should be coming from the junction of 6K8 and 470R. I'll rejig it. Stop building if you're on it... For a while...
      +m

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    3. Fixed with relatively small rejiggin.

      Onthetundra: Fixing it on the board you built should be doable. Sorry 'bout the error....
      +m

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  3. No problem. Thanks for checking it. I'll let you know when its up and running here.

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  4. It's a cool name for a pedal. Or pretty much anything.

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  5. Replies
    1. I tried it too late last night. Quick probing shows that the signal dies on Q1. Although, i'm 100% sure that the layout is 1:1 with the schematic... Seems weirdish to me that there's nothing between Q1 base and collector. I'll keep checking the FSB thread...
      +m

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  6. I had trouble with Q1. Rest of the circuit was fine... I don't get it either. I'm 100 per cent sure about the layout, but never got this to work.

    Maybe it's just one of those mystery things like the downbox was...
    +m

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  7. Don't know dude, this is ilogical. A Tone Bender is just the same, connecting Q1 Collector to Q2 base directly with a 100nf cap. Nothing between Q1 base and collector.... don't fuckin' know, it has no explanation

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