Saturday, 9 June 2018

Baja Ampeg SVT Bass Amplifier

Original FSB thread and schematic available here.
I've put the Mid Freq switch components on a separate board to make it easier to box it.


24 comments:

  1. Baja is certainly belting a few out over at FSB!

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  2. Replies
    1. Hello, My question is regarding this circuit, this is a preamp pedal is that correct? Thanks

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  3. Hi! What kind of inductors have you use in tris proyect? I am not sure, and I don’t find anyone in any online shop.
    Thanks for helping me!

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  4. And you mean microhenries or millihenries?
    Thanks a Lot!

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  6. Anyone care to comment on the differences between this layout vs Baja's Rev2 over at FSB?

    I've been looking at both, and quite honestly, they both look easy enough to build!

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    1. i'm pretty sure this layout is based on rev 2.

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    2. rev 2? I can only find rev 1 on the original thread?? where is rev 2?

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  7. Anyone know if I can safely switch out the 2Sk117 for a BS170? 2Sk117’s are scare

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  9. It's very hardware for me to find The 1u18 capacitor, anyone knows where i can find?

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    1. None of the other components have that tight of a tolerance: I mean, try finding a coil with 1% tolerance. So 1u2 will likely be precise enough.
      I tried some 1u2 capacitors on a tester and one was almost 1u18...

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  10. I need to learn how to edit. However, the freestompboxes rev1 version shows you need A50K pots for bass and treble. In you schem you show A5K pots, which is right?

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  11. I also would like to know which is right between A5K and A50K pots.

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  12. I know this is an old thread but any help would be greatly appreciated! Im getting a constant high pitch sound from my treble, so much that the ultra high switch is pretty much unusable. Can anyone point me in the right direction?

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  13. What is CLR in the layout?

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    1. Current limiting resistor for the led

      4.7k is usually a safe bet!

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  14. This should be able to take 12v though, should it, as long as the caps are rated 25v and over?

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    1. Yes no problem, I think the ICs can handle a 36V swing so as long as the caps are up to the job it'll work fine

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  15. Does anyone else have a noticeable drop in volume when switching the 'Ultra Low' on?

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