Sunday, January 10, 2010

Guitar Amplifier Update #2

Well, I am getting more accomplished. Specifically:

  • Cut wood for case and started to assemble
  • Started circuit board to control and jack wiring
  • Designed front panel for all of it, I am not using standard scaling on the Volume control... After all, a volume control that does not go to Eleven just isn't a volume control! (Why use standard increments either?)
Here are the latest pictures:

Note the angle clamp and T-Square. I learned this trick a long time ago: When clamping, to get a true square edge, use a clamp on the angle to squeeze the box so that it is exactly square Before the glue dries!

Ipod jack connection (Black and Red wires) on left and the High Z input on right (Yellow shielded wire).
The 1/4" jack for the High Z input.

My thoughts on front panel below

Well, it is time to put the soldering iron up for today. More to follow on the project!

Sunday, January 3, 2010

Guitar Amplifier Update #1

Well, I have both boards for the pre-amp put together. I am building two of these. So far so good. I also had almost all the parts I need already in the garage. One trip to Tanner Electronics in Dallas completed the list of items. Here are a couple pictures of the PC boards. The old standby, Radio Shack solder in perf boards!

Top of the Board with close up on one of the the Op Amps, a Burr Brown OPA-2134 I bought 100 of these before Texas Instruments bought Burr Brown.

Top of the board again showing the other two dual Op-Amps and the CMOS4049 chip I am forcing from digital into the Analog realm. Below is the bottom of the board.

I also got the wood cut for the case. It will be 18 inches tall, 13 and a half inches wide and 8 inched deep.

More to follow,