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Recent content by Reno

  1. R

    Led Placement Eaglecad

    Thanks for the reply I will check it out
  2. R

    Led Placement Eaglecad

    Hi I have designed a LED vu meter in eaglecad to replicate a traditional analog vu meter. However I am having problems laying the leds in a semi circle. I have tried to use the RUN ULP but have had no luck, and would really appreciated if someone could hep me out thanks. P.S Here are some...
  3. R

    Rod eliotts Sweep Eq

    Ok thanks ronv I will give it go tomorrow
  4. R

    Rod eliotts Sweep Eq

    Hi ronv when the 10k pot is at full gain and the 1m pot is swept fully to the right it peaks at the 150hz and peaks at the 35hz when the pot is half way instead of when fully anticlockwise so the sweep is very tight, So half the potentiometer is having no effect at all
  5. R

    Rod eliotts Sweep Eq

    I wonder if I have a dogy potentiometer I will check and see if this is causing the problem, what do reckon I should raise the 1uf cap to ronv?
  6. R

    Rod eliotts Sweep Eq

    Hi the pot I am using is Linear, I already tried to mount it the other side but as you said nothing happend. regarding cap values and pots the original circuit is here **broken link removed** thanks thanks for the replys
  7. R

    Rod eliotts Sweep Eq

    Sorry you cannot see the ground plane in the pic but they are connected on the board ill try to add another picture thanks for your respnse
  8. R

    Rod eliotts Sweep Eq

    Hi I am having trouble with R7 the sweep pot
  9. R

    Rod eliotts Sweep Eq

    Hi I have been playing with various types of EQ's recently and came across the esp Parametric Equalizer, and thought I would give it a go as I have built very similar gyrator circuits with good success. The first thing I done was omit the input buffer as this was not needed but everything...
  10. R

    Sweep Gyrator

    Thanks for the idea it looks like my only option as I cant see anything else causing the problem
  11. R

    Sweep Gyrator

    Thanks for your response, the GND (0 Volt) is connected on the board you just cant see the ground plane I can post a pic if you want?
  12. R

    Sweep Gyrator

    Hi thanks for you response I think its a 50hz hum but I have not taken note of the hum when the pots have been in center position so it could be either, as when you sweep higher up the hum disappears. I am testing this on Rod Elliott's power supply **broken link removed**
  13. R

    Sweep Gyrator

    Hi there I have built this sweep EQ which works however, I am having a major hum problem with it. At first I thought it could have been a ground loop on the board however, I also built this circuit into a mic preamp with a baxandall tone control after it. This circuit worked fine when the opamp...
  14. R

    Sweep Eq Problem

    Any Ideas out there ?
  15. R

    Sweep Eq Problem

    Hi there I have built this sweep EQ which works however, I am having a major hum problem with it. At first I thought it could have been a ground loop on the board however, I also built this circuit into a mic preamp with a baxandall tone control after it. This circuit worked fine when the opamp...
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