Lundahl Transformers Schematics

Amplifier Schematics

Links to schematics using our transformers
(This is a trick to sell more transformers. However, we take no responsibility
for the quality of the designs. Of course you are welcome to submit successful schematics for inclusion.)

Laszlo Csaszar suggests a SRPP (Shunt Regulated Push Pull) topology for a DAC: using E88CC tubes and Lundahl LL1678.
If you are not a member of the diyAudio.com forum, klick here for the schematic.
Jac Music collection of schematics: using Lundahl transformers . (Jac Music is our German distributor of audiophile transformers)
A number of tube amp projects: by Andrea Ciuffoli .
Old-fasioned 30W Push-Pull amplifier.: A very comprehensive building instruction by Claus Byrith . This amplifier uses LL1663/PP transformers
Easy-to-build SE amplifier: Yet a very comprehensive building instruction by Claus Byrith . This amplifier uses EL34 tubes and LL1664/80mA transformers.
Schematics by Aqua Blue is now collected in a separate list.
Manfred Huber "Ironimus": A 3W SE6A3 amplifier using LL7902, LL1635 and LL1623 transformers.
Lynn Olsen push pull amplifiers Amity and Aurora and preamplifier Raven: (Lynn Olsen web site is at http://www.nutshellhifi.com)
A Hybrid amplifier with interstage transformers,: using 5687 tubes, Lundahl LL1660s and Magnatec PowerMosFets.
Click here for Wim de Haan's site and follow links to "hybrid amplifiers" and "interstage coupled".
The Revenge KR842VHD SE Amplifier: using Lundahl power supply transformer and choke and Lundahl SE OPT.
(This PDF document requires Acrobate Reader 4.0 or later to load cleanly)
Reprinted, with permission, from audioXpress , Issue 12, 2001, p.p. 44–49, of audioXpress magazine. © Copyright 2001 by Audio Amateur Corporation. P.O. Box 876, Peterborough, NH 03458, USA. All rights reserved.
Phono Preamplifier with Transformer Output Stage: using LL1570XL transformers. By Klaus Boening .
High Performance Output Stage for the Phono Preamplifier (above): using LL7902 transformers. By Klaus Boening .
The ARMADA SET amplifier project.
All equipment you need for a studio designed by Jakob Erland at Gyraf Audio in Denmark.: Most of the equipment is using Lundahl transformers.

Per Lundahl, email: web_master/AT/lundahl/DOT/se

Lundahl Transformers AB
Tibeliusgatan 7
SE-761 50 Norrtälje
SWEDEN
Phone: +46 - 176 139 30
Fax: +46 - 176 139 35
Email: office/AT/lundahl/DOT/se