Archive for May, 2008
Saturday, May 31st, 2008
Nordic’s Big Muff Pi Triangle Revision
Nordic sent us a revision of the gaussmarkov.net Big Muff Pi Triangle layout. He added his own artistic touches and created something that differs from most of our layouts in several ways. … more …
Friday, May 30th, 2008
G. Collier’s RunOffGroove Thor
A basic goal of gaussmarkov.net is to provide support for designing your own build. Not only can you get PCB images, but you can also get Eagle CAD files for those images that you can rework. Because the PCB design is already verified, you can be confident that your version is going to work also.
This post is the first of a series that will offer projects by others that are based in part on gaussmarkov.net projects. George Collier took the Thor circuit from runoffgroove.com, the Eagle files from gaussmarkov.net, and put in his own 3 band active tone control. … more …
Thursday, May 29th, 2008
Wiring Up a 1590B
Wiring up the off-board components, particularly a 3PDT switch, can be confusing. There are many good explanations of how to do it (see for example geofex.com, tonepad.com, and generalguitargadgets.com) and this one adds to the pile by breaking down the logic of one of the more elegant layouts with a series of detailed figures. I walk through the case where the audio jacks are not insulated from a metal enclosure, there is an LED to show when the circuit is on, and when the circuit is off there is simple by-passing with the circuit input grounded.
Thursday, May 1st, 2008
Creating a PCB Image using Export
If you want to etch a PCB with a layout in Eagle then you will need to create an image like this one to transfer your design. This brief tutorial explains how to set things up so that you can use the Eagle export command. … more …