Hi all! Can anybody on here give me a list of the capacitor values and the ICs used in their thumpinators/micro thumpinators?
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SFX Thumpinator/Micro Thumpinator question
- Thread starter maniac mikej
- Start date
father of fires
Commercial User
I'm sure you could just build a LR 24dB per octave 30Hz hpf with low noise opamps and have the same thing.
Sorry, not sure exactly what you mean by that. I'm looking to clone a thumpinator circuit, or something almost identical to it.
father of fires
Commercial User
And I just gave you the recipe. I'm not trying to be a jerk but SFX is a no nonsense company and the thumpinator is a no nonsense product using industry standard filters. I can post links to what I'm talking about when I get near a computer.
father of fires
Commercial User
I don't know how much you know about electronics but what you need to build is the high pass portion of the crossover:
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You will need to adjust the frequency using the formula at the bottom of the picture.
You will most likely need a buffer added to the input.
http://www.muzique.com/lab/buffers.htm
Your power supply options are endless. If you plan on using a 9 volt battery you will either have to convert that to a bipolar supply or create a 1/2V reference voltage and convert the schematic as necessary.
Invalid Link Removed
You will need to adjust the frequency using the formula at the bottom of the picture.
You will most likely need a buffer added to the input.
http://www.muzique.com/lab/buffers.htm
Your power supply options are endless. If you plan on using a 9 volt battery you will either have to convert that to a bipolar supply or create a 1/2V reference voltage and convert the schematic as necessary.
That's just details, my boy!!
If I wanted a Micro Thumpinator(which I do), I would just buy one from Max(which I will), but I'm curious to see if the OP can pull this off...
Max ([sfx]) has participated, and given help in fact, in similar threads before.
See http://www.talkbass.com/forum/f36/spkerbx-27-2hz-high-pass-filter-896616/
That was slightly different however as it was clear from the start that what he wanted to build something like a thumpinator for himself. It's not so clear here what the OP's intentions are.
It was also clear that the guy in the other thread had trouble getting it to work completely to his satisfaction. I suspect Max's business is not going to be under threat from these 'copy' Thumpinators.
That's high-pass surely ? You want to be throwing away the lows (sub 30 Hz).
There's a similar product made by Talkbass user Fdeck called the HPF-Pre, which he kindly gives a schematic and DIY details for:
https://sites.google.com/site/hpftechllc/home/technical-diy-stuff
The HPF-Pre has a variable cutoff frequency, compared to the fixed one on the Thumpinator.
https://sites.google.com/site/hpftechllc/home/technical-diy-stuff
The HPF-Pre has a variable cutoff frequency, compared to the fixed one on the Thumpinator.
Definitely not illegal. Even if the circuit is is patented, which is highly unlikely, anyone is still free to copy and share schematics or parts list. You just can't sell it (if there is a patent). Whether it's "not cool" is highly debatable. There is a long history of people sharing schematics in the DIY electronics world, and it generally isn't frowned upon. There was a time when companies used to even publish the schematics right in the user manual. As long as copies aren't being made to sell, there is no harm done. It's generally more expensive to clone a circuit when you figure in all of the time and money spent doing research, sourcing parts, building, testing, etc., so it's not like a few guys making a one-off clone in their own free time are going to hurt company profits. We just like to build stuff and learn.
That's how I feel about it. And I'm quite certain few could duplicate the build quality of [sfx] and others like them. So yeah; I'm sure their market shares are quite safe.
I'm in the process of building several cloned effects, and for considerably less than the retail price of any of them. Actually, in the end, my total cost of 10 effects will be less than the average cost of any one of them.
But the ridiculous amount of time spent researching schematics, sourcing parts and finally building/testing them makes it a hobby at best. Those fine companies can keep their sales. I don't intend on competing with them. And if I were ever to make money using those effects, I'd save up and buy the originals.
But that's just me.
I'm in the process of building several cloned effects, and for considerably less than the retail price of any of them. Actually, in the end, my total cost of 10 effects will be less than the average cost of any one of them.
But the ridiculous amount of time spent researching schematics, sourcing parts and finally building/testing them makes it a hobby at best. Those fine companies can keep their sales. I don't intend on competing with them. And if I were ever to make money using those effects, I'd save up and buy the originals.
But that's just me.
father of fires
Commercial User
I really can't read schematics all that well, any pedals I build are from layouts. I'm not trying to take anything away from sfx or destroy their market or anything like that, I just prefer building to buying.
However, if I wanted to change one capacitor value, claim it was my own design, and charge more than the original, I have every right to. The good news is, I don't call my effects "Lovepedal"
However, if I wanted to change one capacitor value, claim it was my own design, and charge more than the original, I have every right to. The good news is, I don't call my effects "Lovepedal"
