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  1. beeltink

    Fat Piggy

    I’m talking about the non-used invertors. If the input is floating, lots of current could flow, as its state is undefined. If connected to Vcc/gnd it’s high/low, so no current flows through these. The others are used as amplifiers, so current flows constantly, like through a PNP/NPN BJT pair...
  2. beeltink

    Fat Piggy

    Input = gnd -> Output = high Input = Vcc -> Output = low You could connect the output to either Vcc or Gnd, as long as it is the reverse of the input. As it is CMOS, current flows during switching/changing the input voltage, AFAIK
  3. beeltink

    Fat Piggy

    Here’s an idea: isn’t it possible to substitute the CMOS with pairs of BS170 and BS250 MOSFETs?
  4. beeltink

    Fat Piggy

    A very good point about floating CMOS-inputs! And thanks for the input circuit analysis, I’ll take a look at that as well.
  5. beeltink

    Fat Piggy

    Here's a recording:
  6. beeltink

    Fat Piggy

    I think it depends what you're looking for, of course :) Yet, the gain switch and gain control hardly worked until now, since the input was just way over the top, at least for me.
  7. beeltink

    Fat Piggy

    I built the Fat Piggy, but find the gain so over the top that the pedal just oscillates. I'm wondering if R7 should be 68k instead of 680k. I just changed R7 and with 68k it sounds much better. EDIT: Also R10 could be lower. I went to 47k for R10. The Gain-pot should also be lower, IMHO, like...
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