Showing posts with label Easy. Show all posts
Showing posts with label Easy. Show all posts

Tuesday, 19 November 2019

Friedman Golden Pearl Overdrive

I haven't done a layout for a while and as this is a nice simple one I (as I like them) I thought I'd add this to the collection. After doing it I noticed that HamishR has added a layout to the forum and that one is verified. But I thought I'd still add this to the main blog.  I did it with the components on the switches though to keep the board more simple though so you can just choose the one you prefer.

You can see HamishR's layout here:
http://guitar-fx-layouts.42897.x6.nabble.com/Friedman-Golden-Pearl-Verified-td45066.html

Info about the original:

The Friedman Golden Pearl is a transparent, lower gain overdrive pedal designed to push already overdriven amps into seductive saturation. This versatile pedal can also be used into a clean amp to achieve that elusive semi-broken up tone. 
Designed to please the ultimate tone connoisseur, the responsive controls, along with the three position high-frequency cut switch, let you custom tailor the pedal to your amp. 
Even greater refinement is available via the tri-mode clipping mode switch, which provides LED, diode, or no clipping voice options. Built in the USA, and designed to withstand decades of abuse, the Golden Pearl is a must have pedal for any guitar player. 






Monday, 5 February 2018

Lovepedal Jubilee

Schematic available here.

20/02 Layout updated! Changed the 47nF cap to 4n7 as suggested by Music6000


Saturday, 25 March 2017

Lovepedal Champ

This should emulate a Fender Champ sound.
You can find original FSB thread and schematic here.


Tuesday, 7 February 2017

WEM Pepbox

   This was requested in the forum. There is a photo of the Beatles where you can see this pedal, so it should be a fun build for us Beatles fans!


   Here's the Ge version first:



   
Then the Si version:



And finally the Si version with the tone control mod like the Ghost Effects kit:




Saturday, 10 December 2016

Fuzz Central Liquid Drive

Came across this the other day and since I'm in the mist of finals I figured it would be a nice way to get my head away from my work and relax. Basically this is just a modified Ross Distortion, but has enough differences that I feel warrant a layout of its own, plus not sure how may people have seen it before.

List of differences from the source:

  • Time for a Better IC: After "auditioning" the single OPAMPs, I've decided to use a good 4558 in the Liquid Drive for better all-around sonic performance, in this case a Burr Brown OPA2134PA. You can also try all the other 4558-types, like the JRC 4558D and 4558DD, Burr Brown OPA2604, Texas Instruments RC4558P and several others.
  • Stabilizing the IC: Since this circuit utilizes a dual IC, but actually uses only one of the two internal amplifiers, we need to stabilize the second unused amplifier. In order to do this we'll tie pin 5 (non-inverting input 2) to ground, and attach pin 6 (inverting input 2) to pin 7 (output 2).
  • More Treble Response: For more treble response in the circuit, specially tailored for my modified Fender Telecaster and Twin Amp, I changed the 10nF input capacitor to a smaller value, in this case a 3.3nF.
  • Asymmetric Clipping Diodes: I personally prefer the sound of asymmetric clipping. For the Liquid Drive I chose to use 1N270 Germanium diodes for their warmer, more throaty response compared to Silicon diodes or LEDs. They're also a little more squishy and compressed sounding than Silicon diodes or LEDs, which makes them sound more like tube distortion to my ears. Using asymmetric clipping also enhances the harmonics and boosts the output of the circuit. The only drawback is that the drive range is decreased a little, but we'll make up for that in the next mod!
  • More Gain: In order to recover the gain range lost by using asymmetric clipping, I've lowered the 4K7 resistor on the 3rd lug of the "Drive" pot to 3K9...not a drastic change, but it does increase the available drive range.
  • More Low-End Response: To get a little more low-end response out of the circuit, I increased the value of the 47nF capacitor that's attached to pin 2 of the IC to 68nF.
  • Increased Output Level: In order to get a little more output from the circuit, I've used a 100K linear taper pot for the "Level" control. The linear taper pot will allow more output sooner in the rotation of the pot, as opposed to a standard audio taper, where all the useable output is in the 2 o'clock to 3 o'clock range. The linear taper takes some getting used to, but I think it's better to have that extra output sooner in the rotation range. The linear taper pot is LOUD at 11 o'clock.
  • Use Non-Polar Film Capacitors Instead of Tantalum: In order to get more clarity from the circuit, I've replaced the two 1uF Tantalum capacitors with 1uF non-polar AVX boxed metal film. They're larger than the tants, but I think their better sound quality is worth making a little more room on the circuit board for them.
  • Power Supply Filtering and Polarity Protection Mods: To add some extra nose rejection and polarity protection to the circuit, I've added a 100-ohm resistor in series with the power supply before the power makes it to the circuit, and then I added a 100uF Electrolytic and 100nF Cermaic capacitor in parallel with the power supply after the series resistor. These two added capacitors provide superior noise/hum rejection for the circuit. I've also added a 1N4002 diode in parallel with the power supply after the series resistor to help prevent damage to the circuit in case the battery or power supply is connected in reverse polarity. To some these extra parts may seem like overkill, but to me they're piece of mind :)
In the end you can try different diodes and Dual Opamps and see what you like best. I know I'm not the only one that's a big fan of the DOD250/MXR Dist+/Ross Distortion for it's great tone, simplicity, and the ease at which it can be tweak to your liking.



BYOC Confidence Booster

The BYOC Confidence Booster is just a simple linear boost and buffer. The only change i made was moving the trimmer offboard to make a pot. Figured this would be a nice easy project for those that want to get started building pedals.




Tuesday, 29 November 2016

Earthquaker Devices Tentacle

Basically the Tentacle is Dan Armstrong Green Ringer with a few value changes.

Now for those of you that liked the idea of building a Hoof Reaper, which I mentioned when I posted the layout for the Tone Reaper, the Tentacle should go in between the Hoof and Tone Reaper for the Octave effect. So for all the disciples of fuzz out there, pair this your favorite fuzz for some crazy octave up fuzzy goodness.

Direct from the source:

The Tentacle is a classic analog octave up effect. It is the very same octave from our beloved Hoof Reaper pedal. We got so many requests to make this a stand-alone unit that we just had to make it a reality. You can now add an excellent, swelling octave up to anything your heart desires! Pair it with your favorite fuzz, strap on a headband and unleash your inner Jammy Hendrix. Put it in front of another octave up and blow your amp's mind. Throw it in the effects loop of a delay and marvel at what happens (then tell us, we’d like to know too). What’s better? It has no controls! Nothing to worry about at all here, just hit the switch and go for it. The Tentacle is an analog octave up, the effect will become much more pronounced when using your neck pickup and playing above the 12th fret.





Edit: For those that have built this already based on the original layout upload, flip Q2 so the Emitter is towards +9V and the Collector is towards Ground.

Friday, 20 November 2015

Earthquaker Devices Acapulco Gold

Original infos:
The Acapulco Gold is a dirt-simple power amp distortion device that's based on the vibe of a cranked Sunn Model T. 
You know what is awesome?
Simplicity. One button, one knob. How loud would you like it?
Just move the knob.
This is the spirit of rock and roll. Quit turning knobs and play that guitar like you mean it. 
While playing, you may want to try ignoring our suggestion and try fiddlin' with your guitar's volume and tone knobs as these can drastically affect the sound of the Acapulco Gold.
The volume knob on your guitar cleans up the pedal nicely, but not too clean.
At minimum guitar volume settings, the Gold imparts a hazy, Nashville-sounding spank to your tone. At just-barely-backed-off, the Gold turns into a raunchy overdrive.
And of course when the guitar volume is completely open, the Gold roars like a Model T on the verge of explosion. It's not quite fuzz, but so close.

This is a very loud pedal.
As Nocentelli pointed out on the original FSB thread here, there are 2 types of videos:
a carefully produced one from PGS (where it's probably used to massively drive a nice tube amp)


 and a more realistic one where the volume knob is set much lower