Entries by Kevin Carter

New Lundahl Catalog Available

Lundahl Transformers has compiled a new catalog in .pdf format that is downloadable from their website.  It includes data sheets for the newest models, as well as the older ones that we have relied on for great sound over twenty years.  It can be viewed or downloaded here:  http://www.lundahl.se/technical-information/

The First Special of 2016!

Dave Davenport has reduced the price on the most versatile of the DACs now on inventory clearance sale.  This DAC will handle a very wide variety of inputs, making it perfect for someone who has all of these sources or experiments with different types of digital  sources. Special – one only DAC #4 (Standard) SPDIF […]

Fall Inventory Reduction Sale on Raleigh Audio Products

Dave Davenport of Raleigh Audio has announced a Fall inventory-reduction sale. While inventory lasts, assembled DACs and Preamps are being offered at a 20% discount. As is usual, the Preamps are a fixed configuration, while the input configuration of the DACs are custom. Below are listed some sample configurations with their sales prices. You can […]

Monoblock PP Amplifier Using New Amplifier Kits

I’ve designed and begun the assembly of a PP KT120/150 monoblock amplifier that uses the new capacitor-coupled 6J49P PP input stage and one of the new power supply kits.  The power supply is choke input for low noise and uses a lower cost, over-sized toroidal power transformer.  The output stage is operated Class A1 with […]

New Interstage Transformers Designed for Single-Ended Amplifiers

Lundahl Transformers has quietly introduced a series of new transformers that were designed specifically for SE use as interstage transformers. While the LL1660, LL1692A, and LL1671 have been great transformers in my hands and in those of many others, there was performance to be gained by designing new transformers whose winding geometry has been optimized […]

Audio Transformer Basics 101

We’ve added a new series of reference documents under the “Transformers” menu heading, labeled “Transformer Basics 101”.  These articles were developed and authored for Lundahl Transformers by a well-known pro audio designer, Ken DeLoria.  These provide an excellent introduction to audio transformers:  rationale for use, applications examples, construction/manufacturing, and a bit of transformer theory and […]

Amplifier Input Stage and Power Supply Kits

These kits are now all in stock ready to go.  They make amplifier construction using the output stage of your choice straightforward and sonically rewarding.  A few early adopters have already built PP amps using the interstage transformer input stage and a variety of output tubes, including PP 6C33C and PP KT150 tubes.  Pictures and […]

New Products for April 2015

As some of you know, I’ve been developing a number of new products over the past year or so and many of them are ready or nearly ready for release.  Here is a synopsis of the products pending the full release of information in the relevant website pages: Trio Phono Preamplifier Kit – The intro […]