owel
Well-known member
Okay, I modernized my evilBay find Altec 1599A 6 to 1 mixer.
Basically, I replaced the PSU, and the line output driver. For the line output driver, I used NE5532P opamps. I also converted the unit to 6 direct outs!
Before:
http://www.fivefish.net/diy/Altec1599A/images/frontview.jpg
the guts...
http://www.fivefish.net/diy/Altec1599A/images/openunit.jpg
old PCB...
http://www.fivefish.net/diy/Altec1599A/images/pcb.jpg
new schematic and PCB... I designed it using Eagle. Note: I spray painted the PCB flat-black, heheheh For that "skunkworks" project feel.
http://www.fivefish.net/diy/Altec1599A/images/pcbstuff.jpg
http://www.fivefish.net/diy/Altec1599A/images/pcbprogress.jpg
took out the old PCB, and replaced it with the modern opamp version with 6 direct outs!
http://www.fivefish.net/diy/Altec1599A/images/altecnewpcb.jpg
And here's the 6 direct outs (RCA female). I haven't shrinked the tubing yet on this picture.
http://www.fivefish.net/diy/Altec1599A/images/rca.jpg
The sound? Hmmmm... nice, vintage sound thanks to the original Altec can preamps, Lots of gain too, thanks to the opamp! I am happy with the outcome of this project.
Basically, I replaced the PSU, and the line output driver. For the line output driver, I used NE5532P opamps. I also converted the unit to 6 direct outs!
Before:
http://www.fivefish.net/diy/Altec1599A/images/frontview.jpg
the guts...
http://www.fivefish.net/diy/Altec1599A/images/openunit.jpg
old PCB...
http://www.fivefish.net/diy/Altec1599A/images/pcb.jpg
new schematic and PCB... I designed it using Eagle. Note: I spray painted the PCB flat-black, heheheh For that "skunkworks" project feel.
http://www.fivefish.net/diy/Altec1599A/images/pcbstuff.jpg
http://www.fivefish.net/diy/Altec1599A/images/pcbprogress.jpg
took out the old PCB, and replaced it with the modern opamp version with 6 direct outs!
http://www.fivefish.net/diy/Altec1599A/images/altecnewpcb.jpg
And here's the 6 direct outs (RCA female). I haven't shrinked the tubing yet on this picture.
http://www.fivefish.net/diy/Altec1599A/images/rca.jpg
The sound? Hmmmm... nice, vintage sound thanks to the original Altec can preamps, Lots of gain too, thanks to the opamp! I am happy with the outcome of this project.