#1
I'm a complete newbie when it comes to circuits, as have just started learning about electronics today.

Basically, I'm trying to copy a diagram for a Tube Screamer into a program called Mutisim, but I've got stuck on a few parts of it.

Could someone tell me what is going on in the bits I've circled in red in the picture? I don't know what they are, or how to put them onto my diagram.

Any help appreciated, thanks

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#2
the 500K and 10K things are Potentiometers (sp?), and i think the black dots are ground connections, but i'm not sure. the +9V should be connected to the +ve battery connection
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#3
Thanks, potentiometers is correct

Where would the -ve battery connection go then?

I don't see why the black dots would be grounds, 'cause they have ground connections there already.
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#4
The +9v is the battery positive connection
The 500 Log drive, 10k tone, and 100k level are all off board pots (potentiometers)
IC=4558 refers to the dual op-amp which is represented as the two triangles in your diagram.
The 4.5v bias connections refer to a part of the circuit (not shown) which derives a 4.5v voltage from the 9v supply. See here for an explanation - http://www.geofex.com/Article_Folders/TStech/tsxtech.htm
#5
Cheers

I'll give that site a look. Hopefully I'll understand some of it...
Quote by Liberation
Every time I see your avatar I want to slit your neck with a butterknife. Goddamn Pingu.
#6
i think the black dots things with the swigglies are resistors but i could be wrong, and probably am hopefully this helps.
The Set-Up

Gibson Les Paul/Fender MIA Deluxe Strat --> MXR Super comp --> Boss DD-3 --> Dunlop Crybaby --> Need an amp, wanna sell me one?
#7
The 4.5v bias connections refer to a part of the circuit (not shown) which derives a 4.5v voltage from the 9v supply.


I still don't get whats going on here. Why isn't it shown? And where does the -ve end of the battery connect to?

And that site was a little too in depth for me, I only started this sort of thing yesterday
Quote by Liberation
Every time I see your avatar I want to slit your neck with a butterknife. Goddamn Pingu.
#8
Quote by loonyguitarist
I'm a complete newbie when it comes to circuits, as have just started learning about electronics today.

Basically, I'm trying to copy a diagram for a Tube Screamer into a program called Mutisim, but I've got stuck on a few parts of it.

Could someone tell me what is going on in the bits I've circled in red in the picture? I don't know what they are, or how to put them onto my diagram.

Any help appreciated, thanks



What actually is "mutism?" I'm actaully making some pedals with a friend, so anything would be helpful. How much is it and where can you get it?

Cheers - good luck with your project,

Dan
Gear List;

Laney VH100R with Matching Cab
Ibanez RGT42FM
Schecter C-1+
BC Rich Neck Thru Warlock
ISP Noise Decimator
Ibanez TS9
#9
Quote by loonyguitarist
I still don't get whats going on here. Why isn't it shown? And where does the -ve end of the battery connect to?

And that site was a little too in depth for me, I only started this sort of thing yesterday


If you look at the schematic - http://www.geofex.com/Article_Folders/TStech/tsxtech.gif, you'll see at the top left hand corner the 9v supply which is connected to a voltage divider - the two 10k resistors, to give a 4.5v supply. All the parts of the rest of the diagram that indicate +4.5v are connected to this, and it's the same for your diagram
On your diagram the battery negative is connected to the earth connections
#10
^ Thanks. It's all working now

^^ I got multism with a book I just bought about electronics. It's just a program that lets you make circuit diagrams and stuff and helps you see how they work. If you want, I may be able to make a zip of the files on the cd and send it to you so you can install it. PM me if you want it.
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Every time I see your avatar I want to slit your neck with a butterknife. Goddamn Pingu.
Last edited by loonyguitarist at Aug 30, 2006,