you should be careful of the 7806 before giving it 18v. It says here that it should work between 5 and 18v.
https://www.engineersgarage.com/electro ... ts/7806-ic
I've designed a Filter Pedal for Bass
-
snk
- Resistor Ronker
Hello.
I built it today (nearly twice) :
First, I followed the layout i made (adding a booster in front of the original circuit) : it didn't work
I checked two, three times, and spent a couple hours trying to debug, without luck...
Then, i wanted to try a more "barebones" version, to see if my layout or my build is buggy, so i built the original layout (just adding a 100µF input capacitor, and omitting the output volume knob) : it works.
However, I only get a distorsion, without any filtering effect :icon_confused:
I had socketed the 4.7K capacitor and the diode, so i wanted to try different sonic flavours : removing the cap didn't change the sound, swapping the 4.7K for a 2.2K or for a 6.8K didn't produce any change either...
The filter knob doesn't seem to affect the sound either.
Changing the diodes change the sound a little bit (with a Germanium, the sound is a bit softer, less harsh in the bass range. With a 5mm red led, you have to push the input level a lot to hear some changes).
I am using a "regular' lm567cn (not a LMC567CN : does it matter ?)
I like the "core" sound i am getting out of it, but i am wondering why the filter knob and the capacitor doesn't produce any change in sound ?
[edit]
- I changed the Germanium diode by the recommended 1N4148 : it helps taming the sound a lot.
- Also, I was using a 25K pot for the filter, and a 10K is really mandatory (maybe 5K is even better ?) : the "filter" knob acts more like a "fuzz amount" pot, and with 10K it comes from "no fuzz" to "a lot of fuzz" very quickly.
- But, I am still not getting the nice filtersweep effect i can hear in the demo, and changing capacitor values doesn't seem to affect the filter sound...
I built it today (nearly twice) :
First, I followed the layout i made (adding a booster in front of the original circuit) : it didn't work
I checked two, three times, and spent a couple hours trying to debug, without luck...
Then, i wanted to try a more "barebones" version, to see if my layout or my build is buggy, so i built the original layout (just adding a 100µF input capacitor, and omitting the output volume knob) : it works.
However, I only get a distorsion, without any filtering effect :icon_confused:
I had socketed the 4.7K capacitor and the diode, so i wanted to try different sonic flavours : removing the cap didn't change the sound, swapping the 4.7K for a 2.2K or for a 6.8K didn't produce any change either...
The filter knob doesn't seem to affect the sound either.
Changing the diodes change the sound a little bit (with a Germanium, the sound is a bit softer, less harsh in the bass range. With a 5mm red led, you have to push the input level a lot to hear some changes).
I am using a "regular' lm567cn (not a LMC567CN : does it matter ?)
I like the "core" sound i am getting out of it, but i am wondering why the filter knob and the capacitor doesn't produce any change in sound ?
[edit]
- I changed the Germanium diode by the recommended 1N4148 : it helps taming the sound a lot.
- Also, I was using a 25K pot for the filter, and a 10K is really mandatory (maybe 5K is even better ?) : the "filter" knob acts more like a "fuzz amount" pot, and with 10K it comes from "no fuzz" to "a lot of fuzz" very quickly.
- But, I am still not getting the nice filtersweep effect i can hear in the demo, and changing capacitor values doesn't seem to affect the filter sound...
I see the layout isnt showing anymore. You can also see it in the video. Just pause and make a screenshot.