Lundahl Transformers

Tibeliusgatan 7, 761 50 Norrtälje

Phone: +46 176 139 30

Fax: +46 176 139 35

November 2018

Designer’s comments on EL34 push-pull amplifier project.

November 5th, 2018|News, Products|

One of the most popular projects among our collection of amplifier schematics is the EL34 push-pull amplifier designed and described by Claus Byrith. Based on feedback from builders of this amplifier, Claus has now written a short “Designer’s comments”. You can find the project and the comments here: https://www.lundahltransformers.com/old-fasioned-30w-push-pull-amplifier/

October 2018

The “Magic” LL1527

October 30th, 2018|Products|

LL1527, one of our oldest audio transformer designs, is still in production and still very popular. Many sound engineers have a couple of LL1527 laying around to be used when problem arises. Frequently engineers tell us: “I had some hum in my system, but as soon as I installed one of your magic LL1527, the [...]

August 2018

Product highlight: LL1584 problem solvers.

August 14th, 2018|Products|

All animals are equal, but some animals are more equal than others (From Animal Farm by George Orwell) There are many XLR-XLR in-line isolation units on the market. They pretty much look the same, so what is the difference, and why should you pay substantially more for a Lundahl unit compared to units of other [...]

June 2018

Lundahl Transformers inside

June 20th, 2018|News, Products|

Customers have asked us for ”Lundahl Transformers inside” label to put on their products. Of course such requests make us very proud!!! We are therefore pleased to announce that a batch of such labels arrived today! How to get them? The labels can be requested when you order transformers from us or our distributors, and [...]

New MC step-up transformers!

June 12th, 2018|Products|

Our MC step-up family is growing! Let us introduce the three newest members: LL1961, an amorphous core low turns ratio MC SUT designed for solid state applications. LL1963, the mu metal lamination version of the 1961. LL1971, is bridging the turns ratio gap between the well-established LL1931 and LL1941.

May 2018

Review of our Moving Coil Step-up Unit

May 23rd, 2018|Products|

The Australian Hi-Fi Magazine Sept. 2017 review of our Moving Coil Step-up Unit is now published on the open web. Thank you for the overwhelmingly positive report on the performance of the unit. Our ambition was to make some of the best step-up transformers on the market available for vinyl audiophiles at an affordable price. [...]

March 2018

Product highlight and Happy Eastern!

March 29th, 2018|News, Products|

Here is a presentation of our 1660. We also like to take this opportunity to wish you a Happy Eastern! LL1660 was designed by Lars Lundahl around 1996. It is the first in our new generation of six-sectioned interstage transformers, and it has become very successful. Due to a flexible winding structure (2.25 + 2.25 [...]

November 2017

C-core hydraulic press

November 29th, 2017|News, Products|

When winding audio C-cores, the newly wound core-to-be needs to be press shaped for better form and for releasing it from its mandrel. We finally decided that our old, pneumatic press was not fully up to the job so we built a new, hydraulic unit. Check out the video at our Facebook page!

Audio transformer final tests station!

November 16th, 2017|News, Products|

We are just starting to use our new transformer test station, check out the video at our Facebook page!

October 2017

Why transformers?

October 11th, 2017|Exhibitions, Products|

One week until AES New York 2017 is opening the doors! Come by our booth, 226, and listen to the difference our transformers make… On the picture you see a sneak peak of the installation.