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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