So. I have been at work a lot lately.
So my amp mod is pretty dope. Although i get a fierce hum when i charge the battery - i have decided to move forward and build the rest of it. I think i am going to build four distinct parts. First the power supply. i am thinking that the power supply should be completely separate from all of the other components - mostly cuz it is totally noise causing and i will be able to replace it if needed. I do like how clean and portable the battery power is - so i will keep that and then make the trickle charger just charge it always. I would like to place a digital or analog voltage meter on the front to make sure that the voltage is correct and that the battery is charged. I think something real flashy wil be nice. like a simple digital display with a blue LED backlight. It will rule.
The second component will be the preamp/input switch - this will be a simple simple preamp. The tirck will be that the volume pot will be motorized to control the volume via a microcontroller - this will allow me to have a remote. god i need a remote. then i will also add twin VU meters - not real real vu meters, but somethign that will allow me to view the levels for each channel. once again - something kinda flashy. i think that really nice analog VUish meters woudl be nice - with that really dim seventies light. Something simple though.
The third component would be the phono preamp. It would a really chilled out active/passive phono preamp that would allow me to hook my turntable(1200 w00t) to my preamp/amp. that is all.
The fourth and probable most important part of the equation would be the amp. i would take the pot off the amp and make it just be an amp. nothing more. i will possibly use the sonic impact t-amp - but maybe upgrade to something with a bit power so i don’t have to use crazy crazy speakers for it to soudn good.
A probably pseudo parts list:
REXML could not parse this XML/HTML: <blockquote> <small>
REXML could not parse this XML/HTML: <ul> <li>Power Supply <ul> <li>12.x V Battery</li> <li>Trickle Charger</li> <li>Voltage meter</li> <li>Power switch</li> <li>Charge/Battery toggle</li> <li>Four Power outs</li> <li>blue led status light</li> </ul> </li> <li>Preamp/Switcher<ul> <li>Remote, microcontroller controller potentiometer</li> <li>multiple step potentiometer</li> <li>4 inputs</li> <li>12v power input for remote</li> <li>2 (left/right) VU meters</li> </ul></li> <li>Amp<ul> <li>amp (some tripath amp - probably si t-amp)</li> <li>2 line input</li> <li>4 speaker posts</li> <li>12V in</li> <li>blue led status light</li> </ul> </li> <li>Phono Preamp<ul> <li>12V in</li> <li>2 line in (phono )</li> <li>2 line out</li> <li>blue led status light</li> </ul></li> </small>
REXML could not parse this XML/HTML: </blockquote>
I think that this project rules and is totally teaching me more about electronics. i mean - i took the classes and have done shit with microcontrollers - but i like this application crap. it rules.
so there.
Hi. My name is Harper. I am an engineer excited about real time, social software and the open source software movement. I am currently spending some time building interesting things and hacking for rackspace. In a previous life, I was the CTO of the awesome Threadless.
This is obviously my blog. I write about everything from being a professional yoyoer to hacking the newest Internet appliance. Be sure and check out my homepage at harperreed.org. If you are so interested, my resume is located here. I love getting emails and what not so feel free to contact me through here.
Be sure and take a gander at my photos.
If you want to contact me click here to start a chat.