DIY Projects
Here we showcase DIY projects which use Lundahl transformers.
 
AEGIS tube headphone amp
 
This is an excellent tube headphone amp designed by Keenan. He is also know as L0rdGwyn on the DiyAudio Forum. Go to this page, click here, for all the details, where you can download build instructions, BOM and more.
The AEGIS uses the following Lundahl transformers:
 
1x LL2742/150mA Power supply choke,1x LL2758 Power transformer,2x LL2765/60mA Output transformer, 2x LL1667/5mA tube Anode choke, 3x 1638 small transformer housing.
 
Total for the Lundahl AEGIS transformer set is US$982.00, this includes a 10% discount and shipping to the lower 48.

Click on each model number and it will take you to the relevant page where you can also download the data sheet, by clicking on the model number on the web page.
 
The above will come with all hardware to assemble the 1638 housing, but it does not come with the 12x 4mm screws needed to mount the assembled housing to the chassis plate. The housing is 2mm thick, so you can work out the length of the 4mm screw depending on the top chassis plate thickness.
 
The above transformers are made to order, so you'll need to allow up 4-6 weeks for shipping to you, but most of the time it is around 4 weeks or so. I do keep AEGIS transformer sets on hand, but they tend to sell out quickly, so you'll need to check with me if I have any on hand!
 
To order, please contact us at erhardaudio@gmail.com, mention Aegis and we can get the ball rolling for you.
 
 
Elekit TU8900 300B SE amplifier
 
The Elekit amplifier is a great tube amp kit out of Japan and one of the options offered with this amp is to use Lundahl output transformer, click here for details about the Elekit TU8900.
The recommended OPT for Elekit is the model LL2785C/60mA, priced at US$296.00 each plus shipping. Click on the model to get the PDF data sheet.
The LL2785C is also available with an amorphous core, LL2786CAM, priced at US$495.00 each plus shipping.
Lundahl model 1620 housing is suitable for the LL2785C, priced at US$77.00 plus shipping.
 
This transformer is made to order so you'll need to allow 4-6 weeks for it to be shipped to you.
 
To order, please contact us at erhardaudio@gmail.com, mention Elekit TU8900 and we can get the ball rolling for you.