Link555

Re-Amp Box

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by
Link555
, 10-01-2010 at 05:01 AM (1633 Views)
I got distracted again.....

Here is my latest toy. Super simple re-amp box. Why?? cause I wanted one ;)

Its based on a Jensen XFMR design note.

It allows you to connect the DAW output to 4 amplifiers at once.

There is one completely passive output (the Jensen transformer section) which uses their impedance control idea. This section does not require power and can control one amplifier.

There are three additional op-amp buffered (with a gain if desired) amp outputs. The opamps are powered via a simple +/- 18VDC regulated supply.

There is a switch which allows you select between a line level DAW input or a high impedance guitar input.

There are 2 different ground lifts to play with.

All and all very simple, I am about to cut the pcbs. So please let me know what you think.

http://steller-studios.com/PDF/REAMP...AMP_SCH_RO.pdf
http://steller-studios.com/PDF/REAMP...AMP_PCB_R0.pdf

Thanks,
Link

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Updated 10-04-2010 at 06:29 AM by Link555

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Comments

  1. hueseph's Avatar
    Well, let me be the first to say this looks very cool. You'll have to fill me in on how it works out. Some serious tone possibilities here.
  2. Link555's Avatar
    I have parts coming when I get it together, we should do a test run.
  3. Link555's Avatar


    Here is the main board built last night in 10min! Super easy to make!
  4. Link555's Avatar


    I bent the sheet metal last night, and solder the Power Supply board up. +/- 18VDC rails, for OPA2134's for a bit of gain for the active side....
  5. Link555's Avatar
    Rev 0 is built and working, Boswells ideas of pad circuit have been added to rev 1. I am just laying out pcb now, so hopefully I make it happen in the next little while.
  6. Link555's Avatar
    Rev 1 boards with a pad are here ;) Soon to finish this project off.
  7. Link555's Avatar
    Project finished. Working great. Pads inthe box is nice addtion.