Hi all,
I've been trying to find a nice tone stack for my simple Bazz Fuss circuit.

I was after something that wasn't just rolling off some highs. Maybe adding a bit of colour. I feel like the tone circuit is an important part of the overall sound of the pedal.

So found this Big Muff tone circuit that's kicking around.

Ive wired it up to the same specs and placed it after the pcb output.

BUT It's more extreme than I was hoping for. I'm getting really muddy low tones to nasty super high...

Hello guys,

I hope this is the proper board for this thread

I noticed this great forum lacks the main info about BBD based pedals...
CLOCK.

Heck, we can search for every fuzz face's single node voltage, we have constant requests about what voltage here and/or there in workbench board...
but we have few or no info about BBD based pedals clocks.

I think we need an exaustive clocks archive if we wanna properly clone BBD based pedals.

I think max. and min. clock measured @ BBD pins and power...

I have been struggling for a week now trying to get this LFO to LFO!
I have it on the breadboard.
ideally I would like to use a different LFO that is bipolar powered but its wave is + to - V someone told me the CD4046 chip and not take -V at its pin 9

So I decided to go with unipolar power on the LFO and use the Zombie/ Litch King LFO
Problem is I cant get it to work. I only get a steady voltage out of the output.
below is a pic of my breadboard and the LFO im trying to make.
If someone...

Let's discuss them.
I studied the principle of operation of the detectors and began to analyze the circuit, however I asked a number of questions.
1) Why do they use only half-wave rectifier in Envelop filters? Why no one uses a full wave rectifier?
2) Compressors use different types of rectifiers and half-wave and full-wave rectifiers. Why do primitive and classical circuits like Dyna Comp or Diamond use a full-wave rectifier, and modern circuits like THAT use only a half-wave rectifier? Is...

Hello, I recently made a thread asking for recommendations on delays with the pt2399, I was putting together one that I liked but I wanted to add a tap tempo, well I investigated and they always use specialized chips, I live from Peru, here it is very difficult to get those chips so idee in a tap tempo made with an arduino nano and a DAC, the idea is for the arduino to control the tap tempo and send a signal to the dac and it makes a voltage change and goes to a led that controls an ldr, it's...

hey my friends

had an idea today whilst messing around with a breadboard, following a few tutorials and learning about a simple amplification circuit and had an idea, probably not news to you guys but id like to see it through.

here is the schematic, i basically took the simple amplifier and then ran it through two different pairs of germanium diodes to hear the difference, boosting again after to get some volume, my idea is to add maybe 5 or 6 different diodes on a multi switch so i can...

Greetings
The question is really simple, I played many times with the equalizers of various amplifiers, but only recently drew attention to the fact that the mid-frequency and high-frequency controls of different amplifiers have different characteristics.
Mesa boogie (mark)
VOX
Fender black / silverface
and many other names for logarithmic features characteristic of high and medium pots.
On the other hand, Orange, Marshall, Soldano and many others are on the rise, with no linear features of...

good day guys.

Im planning to make a Precision drive clone with built in Noise gate and I found this Zvex Box of Metal's Noise Gate and I'am planning to use this in Precision drive. my question is, if I use 18volts in the circuit, will the higher voltage affects the performance noise gate? or I should put a 9 volts zener diode as a regulator?

I know it may be fairly simple, but i'm having some trouble figuring it out ... why is R23 there?
I guess it's a compression thing, but not for sure.

It's the schematic of a SS Fender Amp ... nice cleans but awful (really, disgusting) distortion channel.

Thanks!!!

I am tracing out the preamplifier for a piezo acoustic guitar pickup but what is puzzling me is that the input goes through one capacitor to the non-inverting input of an op-amp AND a capacitor which goes directly to ground. The circuit is surface mount so it is not possible to determine the values of the non-Aluminium Electrolytic caps. Can anybody explain to me what the capacitor to ground is doing please?

The attached image shows the circuit fragment. The buffered op amp output then goes...

What’s a good clean blend circuit that plays well with a fuzz?

Probably a dumb question but will a phase 90 style LFO work with an OTA PHASER (specifically an LM13700) plugged into op amp bias pin?

Thanks,

Colton

Hello, someone can tell me how to achieve a 3 band tone control, with this same frequency, which gives the parametric seen in the image.

I want to take it to an anaglogic pedal with a good tone stack

Is there any way to achieve it or imitate it?

I've been looking at this schematic

And I wondered where to implement an attack/release control such as this

In the middle of the RMS Out and the 4K99 R9 resistor?

I am stumped as to how this works :

The diodes ensure the clipping. I guess the lower bandwidth is controlled by C2-R1 as in a TS-like gain stage. When the pot is fully clockwise, the output of the op amp should bypass C3 and R2, making the circuit work just as a TS-like gain stage. What I can't wrap my head around is what happens with other pot positions ? Thank you by advance !

Once again, hello and happy new year.
I am already finishing exploring analog effects technology, only the VCA compressor and noise maker remained (I will ask about this later) and urei1176.
I liked the Keeley compressor pro and Bondi FX 2026 pedals, they have a full set of adjustments and look pretty versatile, and their sound is very transparent (this is good and bad at the same time).
I read a lot of information, but I didn’t find a detailed answer about the Attack and Release adjustments....

Hello everbody!

I am working on a 4 way splitter (could also be 2 or 3 way) and i have some really basic questions. I did research but could not find perfect answers...
here is the schematic so far:

So: my qustions are:
1) Power: I have seen small resistors or intuctor in series coming from 9V. Does that help the power filtering?

2) Vref: Resistors (R1 and R2) values for the reference voltage (virtual ground, 4.5V here) I have seen a lot of different values from 10k to 1m. Based on what...

hello everyone!

first of all... please, excuse my poor english :icon_confused:

Hope you can help me... I´ve googled but, find no answer.

I'm trying to trace and mod an acoustic guitar preamp that uses gyrator eq. The mid's section originally uses a 2n5485 (Right section on image below). Since they are rare to find on my country, i would like to change it by using a MPSA18 (Left section conencted to the potentiomter)... by following the proposed by RGkeen here

EQ.PNG
(Values arround the...

I came across this while searching up information on univibe circuits:

Has anyone ever tried doing this when building a univibe or such? I'm designing my own vibe right now, and the ability to use a single pot and with an opto coupler instead of a hard to find double gang 100kC pot is very appealing. Problem is, I have a bunch of questions about implementing it (ie. ideal part values, what D1 and Q1 should be, etc.).

Anyone got any tips? I think this could be used to achieve slower rate...

Maybe this question was already posted, but....what is the best buffer that you ever used or builded?...i mean in general terms.
please share your experience

:hmmm: :hmmm: :hmmm: :hmmm: :hmmm: :hmmm: :hmmm: :hmmm: :hmmm:

Again, all welcome, I almost closed the questions on the technical aspects of the pedals, here's another 2:
1) The circuits below are transistors in the effects of BOSS BF-2 and MXR Flanger and Ibanez FL9.
I noticed that in almost all modulation schemes there are transistors between the LFO and the clock.
In the BOSS CE-2 chorus, I understood everything clearly on the electrosmash website, but for example there are no transistors in the EHX Small Clone chorus.
Tell me more about what these...

Hello.
At the moment I'm studying how modulation works and was interested in some nuances in MXR schemes
1) MXR Chorus (bottom image) uses 2 halves of U1 as input buffer and active filter.
I did a simulation and realized that you can get a similar result using only 1 half of an operational amplifier, as is done in the MXR Flanger scheme(upper image), just change several ratings to get a similar filter.
Is there any advantage in the form of a separate filter and input buffer against the classic...

Hi
What is the difference between them?

Hello
I have built a pedal expecting a +/- 12-15V symmetrical power supply.
I am torn between two solutions : either use a 15V Meanwell PD2515 PSU i have on a shelf, or modify a Tube Driver daughter board to feed my stompbox symmetrical 12V from a normal 12V adapter.

1 - I have no experience from wiring Meanwell PSU, so could anyone help me and tell how to wire it properly to the pedal ? On the CN2, where is the +15, the -15 and the ground ?

2 - If i go the 12V daughter board route, what...

I have built several BSIABII's and tweeked and played with many mods. One mod I liked on some of my BSIAB's was having the cap parallel with the 5.6k resistor off of Q5 to add some nice high end crunch and crispness. I was wondering where in this BE-OD clone circuit I could do the same thing? I am not sure it is even possible as I am still mostly a paint -by-numbers guy and so don't fully understand how a circuit flows.

Is it possible to adapt this mod that I liked on the BSIAB II to my...