Lundahl Transformers

Tibeliusgatan 7, 761 50 Norrtälje

Phone: +46 176 139 30

Fax: +46 176 139 35

October 2020

PCB

October 29th, 2020|Products|

This small PCB is designed for some common applications using a few of our pin compatible transformer models. Typical applications would be galvanic isolation or balanced-to-unbalanced conversion. The PCB can be used in combination with a DIN housing, or can be screw mounted without any housing.In addition to the transformer, the board has two holes [...]

Rubber Vibration Isolators

October 15th, 2020|Products|

We have been working hard to eliminate mains transformer buzz generated in the windings and isolation material.But the core hum/vibration, caused by so called magnetostriction is not possible to totally eliminate in iron cores.A way to reduce the mechanical coupling between the transformer and any resonating chassis is to use vibration isolators.Therefore, for your convenience, [...]

August 2020

Mains transformers

August 20th, 2020|Products|

Lundahl Transformers are first of all well known for audio signal transformers. But we also make a range of mains transformers, so far primarily for tube amplifier applications.Making quiet mains transformers is a challenge. Although we are proud of how quiet our mains transformers have become today, we continue to improve our manufacturing process and [...]

June 2020

New transformer

June 4th, 2020|News, Products|

A new star is born!LL9226XL, the newest member of our MC SUT family.Despite the young age, the LL9226XL is a big sister to the LL9206 and the LL9226. The LL9226XL is of course very similar to the LL9226, with the same winding structure and the samt pinout, but the amorphous cobalt strip core size has [...]

February 2020

September 2019

Using the LL1545E

September 5th, 2019|Products|

After last week's presentation of the new LL1545E we have received some questions on grounding issues and on how to connect the transformer.The purpose of an input transformer is to provide unbalanced/balanced conversions, AND to provide galvanic isolation. If the incoming unbalanced cold is connected to the local ground (for instance to the chassis through [...]

August 2019

New version of our popular LL1545 input transformer!

August 28th, 2019|Products|

The LL1545A is an excellent sounding line input transformer used in both pro audio and audiophile applications. However, one of the frequent critics regarding the LL1545A is the pinout. The fairly small LL1545A has in total 15 pins in two tight rows, and is probably too flexible for most users.In the new version of the [...]

July 2019

New ”Chokes” page!

July 2nd, 2019|Products|

This year we have extended our range of chokes and inductors, and therefore restructured our web page where the chokes are presented. The chokes are separated into four different categories based on operating current. As there is no fundamental difference between chokes intended for power supplies applications or for anode choke applications, anode chokes can [...]

May 2019

Conrad Johnson and Lundahl

May 7th, 2019|Products|

“I just wanted to let you know that I absolutely love the build quality and sound quality of your transformers.” Statement received from Jeff Fischel at Conrad-Johnson, together with a link to their new power amplifier, the ART27A Thank you, Jeff, for sharing your opinion! We are really happy that you like our transformers.

April 2019

Stereophile review

April 18th, 2019|Exhibitions, News, Products|

At Axpona last week we met up with one of our customers, Victor Kung of VK Music, who was displaying amplifiers with Lundahl iron in his booth. One amplifier on display, the Elekit TU-8600R just received a very positive review in the Stereophile April issue.