My first step into building pedals. DIY Carvin Legacy Driver.

[briandress]

so this is the layout i found.

What are those "DSG" components?

Q1-4 are the JFETs that are off the board??

[EBK]

The DSG components are your JFETs. 
JFETs have 3 pins:
Drain
Source
Gate

The JFETs are on the board, and are given labels Q1-Q4.  The labels have been moved for readability purposes.

Physically, your JFETs will look something like this:

[aron]

Brian, please check out the FAQ link above and also the FAQ forum. These questions have been answered many times before.

[briandress]

Brian, please check out the FAQ link above and also the FAQ forum. These questions have been answered many times before.

Sorry Aron. I'm still learning how to find all the information I need.


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[briandress]

The DSG components are your JFETs. 
JFETs have 3 pins:
Drain
Source
Gate

The JFETs are on the board, and are given labels Q1-Q4.  The labels have been moved for readability purposes.

Physically, your JFETs will look something like this:

Hey thanks bud. That clears up a lot


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[briandress]

Hey EBK do you think it can be setup for a clean channel and a drive channel?

[Marcos - Munky]

Just a suggestion. Since looks like you're having lots of questions to be answered (and that's something just normal, since we all didn't born with all the knowledge we want), start with something easier than the Legacy emulator, so you can gradually learn all the things needed to build pedals. I suggest something like a opamp overdrive, for example a tube screamer or a rat. And definitely don't jump right into a 12AX7 build. I know it's your goal, but it's better to be sure of yourself when building circuits before you do it.

To answer your question, you'll need to change a few parts' values to low the gain. I don't know if it can be done with just a switch. A suggestion is to build it as a drive channel, and look for the schematic of a clean preamp you like the sound, then build it.

[briandress]

Just a suggestion. Since looks like you're having lots of questions to be answered (and that's something just normal, since we all didn't born with all the knowledge we want), start with something easier than the Legacy emulator, so you can gradually learn all the things needed to build pedals. I suggest something like a opamp overdrive, for example a tube screamer or a rat. And definitely don't jump right into a 12AX7 build. I know it's your goal, but it's better to be sure of yourself when building circuits before you do it.

To answer your question, you'll need to change a few parts' values to low the gain. I don't know if it can be done with just a switch. A suggestion is to build it as a drive channel, and look for the schematic of a clean preamp you like the sound, then build it.

definitely appreciate the sentiment. I have no problem physically working with the components or tracing the signal or calculating voltages across the schematic etc, just a few new components I havent worked with before or seen displayed on schematics in this fashion. As long as I know what everything is I will be fine.