DIY-Central.com - Go Create something! - PCB Design, Electronics

I now have a mic preamp kit inspired by the API preamp. Check it out! You can buy the complete kit on my website. http://www.fivefish.net/diy/ http://www.fivefishstudios.com/ffimages/X12-Preamp-Fivefish-large.jpg This is my own version of a classic preamp, popular in the 70s and still popular today. It's not a clone since I'm using a totally different signal path and design, and different input and output transformers. But the sound nevertheless is awesome. Big and beefy with lots of transformer mojo goodness. Note: This kit is my 1u rack version with on-board local voltage regulators. Using Input and Output Transformers 12-step Gain from 22dB to 68dB, at 4dB/step -20dB Input Pad High-quality parts Option to use Discrete OpAmps with the 990/2520 format Using high-performance chipsets, currently the best chip around Using High-speed 2000V/us, video buffer, high-current transformer line driver Using Grayhill switch - high quality mil-spec with output trim Bourns potentiometer - so you can overdrive the input trafo and be able to trim the output of the pre. Null offset trimmer adjustment LED-lighted push buttons for 48V phantom, pads, and polarity reverse Relay Controlled Polarity Reverse Relay Controlled -20dB Pad Soft-start/Ramp-up 48V Phantom Power Includes on-board voltage regulators Professional PCB, Rohs PCB with double-sided, plated-through holes, 2oz. copper with soldermask, silkscreen layout, Includes everything... 5-LED VU Meter, spacers, screws, knobs

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