K&K Audio / Lundahl Transformers

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K&K Audio / Lundahl Transformers

Implementation pictures/ideas

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Dr. Exotica

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In Reply to: Re: Thanks - could you possibly explain the math? posted by KevinC on September 17, 2003 at 06:41:27:

Hi Kevin.
Thanks again for all your useful answers to these innane questions. Regarding implementation pictures, I am curious how people have incorporated the phono preamp kit into a finished design - e.g., how do they get/build their chassis, how do they layout the preamp and power supplies, etc. I have not previously considered a kit such as this (reminds me of the modular approach that Allen Wright seems to favor - r.e., Tube Preamp Cookbook).
Erik

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Re: Implementation pictures/ideas - KevinC 04:51:54 09/19/03 (0)
I can tell you how I have done it and let others tell their stories.
I have made preamps two ways. The Total Phono Preamp Kit puts everything in one box (see www.par-metal.com 10 series enclosures). The power supply components have their own steel internal box, which is on the right, to shield the phono circuitry from power transformer leakage magnetic fields. The PS board is in the middle and the phono boards are on the left side of the chassis. I have also built a few custom units in smaller enclosures (see www.lansingenclosures.com for half rack width enclosures), with the PS magnetics and PS board in one box and the phono boards in the other. These cases are partly aluminum, so care in siting them on your rack is required to minimize hum. The kit instructions show how such a thing is wired up with an "umbilical" cable.

Kevin Carter
K&K Audio
www.kandkaudio.com

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