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converting an earth g1000

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  • converting an earth g1000

    I recently started researching and repairing tube amps. I just successfully finished a cap job on my friends 1966 blackface super reverb. I had a lot of fun doing it and am looking to continue this type of work.

    After I finished this project a friend of mine gave me a broken earth g1000 thinking that I might actually be able to do something with it. I wasn't sure what the problem was so I decided to crack it open and take a peak inside. Before I opened it I was optimistically thinking I could just replace the caps, throw in some tubes and bias it and I would be good to go. Unfortunately I discovered A LOT of damage inside. It almost looks like there was a small fire on two of the power tube sockets which will definitely need to be replaced and many of the resistors are charred beyond recognition.

    After discovering these problems I thought about my options and decided my best bet was to buy an amp kit from mojotone. I want to build something fender, doesn't really matter it just has to be a 6l6 based designed (there's 4 6l6s in this specific model). The main reason I came to this conclusion is because I cannot seem to find a schematic for the g1000 on the internet. I wouldn't mind it being a g1000 but I have no clue what to replace the charred parts with as I cannot read there values of the component themselves.

    So now my main question is what to build inside this amp. If it is possible I would like to use the transformers that are already in the amp. However I have no clue if I will be able to use them with a fender amplifier. Through research I've done I've discovered that the amp is most definitely based on a fender design but I've read that it's based off a fender twin, a fender bandmaster and a fender showman, so I'm not 100% sure what it really is based off of.

    With that information I'm looking for advice on what my next step should be. Like I said I would really like to use the transformers I have in the amp because I'm pretty broke and that would save me a good chunk of change. Thanks guys, I really appreciate the help!

  • #2
    IIRC Earth did some exact copies of Peavey amps.So exact, in fact, that they were put out of business by the lawsuit that Peavey brought against them.Your amplifier may be a clone of a Peavey amp.Check it out.........A search of the history of Earth amps should reveal more details. Steven

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    • #3
      Earth's all tube amps (they made hybrid tube/transistor amps as well) were based on blackface era fender designs. Here's a link to the G-2000 schematic. It should be close enough to help you rebuild what you have.

      http://earth.ampage.org/earthfiles/earth_amp.pdf
      -tb

      "If you're the only person I irritate with my choice of words today I'll be surprised" Chuck H.

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