Progress, Strangeness...

• Chris Liscio


Interestingly enough, over the past few days I've sat staring at the "new entry" screen with so much to say, but no energy to actually throw it down on the keyboard. That's the strangeness part.</p><p>The progress obviously has to do with my amp. I've wired up three iterations of chip amps that have gone from the LM3875 to the LM4780 (and back again!). All of them were wired point-to-point (see image).</p><p>Point-to-Point Wiring Example</p><p>To say I was impressed by how good they sounded on my first attempt would be an understatement. Most of the amazement came from the "did I just build THAT?" aspect rather than the "I'm never buying an amp again" category.</p><p>Now I'm in the stage where I'm trying to pretty everything up so it fits into a box rather than this configuration shown below.</p><p>My current messy amp setup</p><p>PCBoards have been etched, and I'm drilling some out tonight. Hopefully I'll be successful with that and I can move on to cleaning up the power supply.</p><p></p>