Andreas Hünnebeck's Audio-Page

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• Modifications:
  • tweaks for the high fidelity stereo tuner Sony STS-555ES (made 1983) with schematics and PCB layout
  • tweaks for the high fidelity stereo preamplifier Audioplan Homogen (old model, manufactured by B&K-Electronics)
• DIY-projects:
  • DIY-project of a highend stereo preamplifier (line and MC phono) (NEW: with pictures)
    The complete documentations is also available as PDF document (299 kB). You can also check the plain schematics (in PDF):
    • the MC phonopreamplifier (9 kB)
    • the line level preamplifier (6 kB) or
    • the power supply regulation (4 kB) or
    • the external power supply (16 kB)
    My thanks go to Thomas Magin, who brought my handwritten schematics into a usable form.
    The pictures of the preamplifier are also available as JPG-files:
    • the phono stage PCB (79 kB)
    • the line level stage PCB (66 kB)
    • the front view (60 kB)
    • die top view (80 kB)

• Craig Stark's Do it yourself Audio Pages are a must to see.
• An unbelievable number of audio links can be found in the Audio Related Internet World Wide Web & FTP Sites (Attention: very large).
• Interesting Newsgroups:
  • rec.audio.high-end
  • sci.electronics
  • de.rec.music.hifi (for those who understand german language)
  • de.sci.electronics (for those who understand german language)