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Going to be in shibuya in the next 24 hrs. Where would I find pic. General guitar effects thread.
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>>1277892
Also working on this bazz fuzz
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>>1277892
...why would you be looking for cast enclosures in Shibuya? Akihabara used to be the place, but it's pretty much gone.
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buy it online when you get home
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Found mine on aliexpress. Top quality and price is low. Will give you the link later.

Also, I am thinking of offering diy pedal to some of my guitarist friends. I was wondering what is your simplest schematics for basic effect?

Mine is a basic diode fuzz based on AOP. Will post later too.

>Love those effect pedal threads.
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>>1277996
Cool! Looking for cheep enclosures. I got all the parts to build 3 x fuzz pedals for 12 bucks. But the enclosures are pricy. Any ideas on alternatives?
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>>1277996
Schematic I followed. Have an amazing electronics store here locally UTAH. They helped me out on the right parts.
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>>1277996
Couldn't find the vendor I used to go to. But if you go on ali typing 159bb or 1590 enclosure you will find a way through.
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>>1278017
Sometimes for other projects I go with cheap plastic boxes <1€.
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Could someone explain how this could be a compressor circuit?

I understand that it is a led or infra red led and a photodiode but... How could it be a compressor effect ? Is it using the diode effect ? (everything under 0.6v don't pass, i don't know the english for it)
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>>1277895
You should try using some other diode like 1n4148 or zener. It will change the way it sound?
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>>1278034
. not ?
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>>1278032
I don't know about that exact design, but usually they're something like pic related. The LED(s) light up based on the output volume, which in turn makes the LDR more conductive, reducing gain. Doing so it kinda-sorta regulates the output level.
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>>1278036
Thanks.
I understand now. Someone already tried it? I will tried on the weekend.
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I just learned how to solder, and have experience with tools and the like. Besides getting my solder joints looking better, what else could you recommend to get started building effects?
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>>1278068
Buy multimeter, read a book about components.
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>>1278070
I might actually have a multimeter, and I've got an old Ugly's Reference Book. What area of this kind of book should I focus on?
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>>1278074
Name of the book?
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Does anyone have any ideas for graphics to put on a Hammond enclosure for a diy big muff? I was thinking of calling it either the fatcat or fat pussy and etching pic related onto it.
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>>1278157
Fat Cat sounds better.
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>>1278036
Can we say it's how compressor works? I 'm trying to fully understand the way it works to make my own schematics.
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>>1278067
here you go anon, use this image in the future
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>>1277892
theres a store in orlando, fl called skycraft that has a bunch of aluminum enclosures like that very cheap atm
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>>1278250
Whaaaaa. Impressed. Thanks.
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Well. I tryed >>1278227 on one of my colleague who basically told me it was way more complicated than that. Anyone got the simplest way to explain how a compressor works? Not what it does, just how it works.
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>download pirated version of proteus
>design a simple op-amp based fuzz/distortion pedal
>mfw proteus can simulate the sound output
>mfw I build the board
>mfw it actually works

Analog electronics is actually fun when you don't know the theory but at least have a way to preview the waveforms
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>>1278036

That's actually an interesting circuit

See, TL072 is a dual op-amp

The output of one of them is just the output for the effects unit, but it also controls the inverting input of the second op-amp which in turns makes the green leds glow, and the leds change the resistivity of an LDR in the feedback loop for the first OP-AMP, which in turn changes its gain

Real fucking clever if you think about it
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>>1278645
>>1278655

An amplifier circuit has a certain gain

I'm not sure if all compressors work like this, but the circuit that anon posted works by using a second amplifier to control the gain of the first. The higher the output of the first amplifier, the lower the second one will set the first's gain to.
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>>1278645
A compressor reduces the peak level of an audio signal by reducing the gain of an amplifier above a certain output level. In contrast to clipping this process adds little distortion, it softly limits the 'loudness' but keeps the dynamic range.
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>>1278657

Would it be possible to replace the LDR/led pair with a mosfet as a variable resistor?
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>>1278658
Don't know about MOSFETs but using a JFET (as in your pic) is common. A JFET is normally ON and is controlled with a negative gate voltage while a MOSFET is normally OFF and could be used as parallel resistor in a divider that gets activated with a positive gate voltage.
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>>1278656
I understand that, but to me it make the opposite of what you want from a compressor. It will raise the gain of the part of the signal you want to get lower.

>pic
On the right what I think it should do. On the left what I think anon circuit do.
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>>1278691
Fuck. Right is left and left is right. Holy shiiit.
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>>1278691
>will raise the gain
No, it won't. The action of a compressor always reduces the gain. Look at the circuit at >>1278657
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>>1278672
Like this.
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>>1278707
If you say so. Can you argue about the best led colour?




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