straypacket
Well-known member
I recently acquired a pair of mostly-populated "Keith 9K" preamp boards. In building a parts list for completion, I started looking for something to use for the standard mic-pre functions that are missing from the DIY 9K boards (pad, polarity, phantom power). I could have used the excellent candidates that are already out there, but I decided to see if I could roll my own. I decided on the Jensen AS016 schematic. This can be found here: http://www.jensen-transformers.com/as/as016.pdf.
I have created a schematic and PCB layout using Eagle, and created the Gerber files using the SparkFun CAM script with Eagle.
Since this is the first time I've done this, I have no idea if what I have created will work or not - but it sure looks cool on paper Since it's a passive design, and is relatively simple I am hoping for the best!
I am about to send it off to http://batchpcb.com to have a prototype made, and see if it will work. If it works and there is interest, I can see about getting more boards made. BTW, does anyone know if there would be legal problems with me doing this?
The Eagle board file is attached to this post, for anyone who is interested in taking a look. If you do take a look, and have any pointers for a noob, please feel free to chime in
I will try to attach the schematic and gerbers.
Thanks to all here, for the inspiration to try this.
EDIT: Version 1.7 of the board file has been attached: the part for the DPDT switches has been changed to Mouser part #108-2MD1T2B2M6QE-EVX and the board has been organized to be vertical-mount-friendly.
I have created a schematic and PCB layout using Eagle, and created the Gerber files using the SparkFun CAM script with Eagle.
Since this is the first time I've done this, I have no idea if what I have created will work or not - but it sure looks cool on paper Since it's a passive design, and is relatively simple I am hoping for the best!
I am about to send it off to http://batchpcb.com to have a prototype made, and see if it will work. If it works and there is interest, I can see about getting more boards made. BTW, does anyone know if there would be legal problems with me doing this?
The Eagle board file is attached to this post, for anyone who is interested in taking a look. If you do take a look, and have any pointers for a noob, please feel free to chime in
I will try to attach the schematic and gerbers.
Thanks to all here, for the inspiration to try this.
EDIT: Version 1.7 of the board file has been attached: the part for the DPDT switches has been changed to Mouser part #108-2MD1T2B2M6QE-EVX and the board has been organized to be vertical-mount-friendly.