This is the BAMA archive. These manuals are available for download and free of charge. Do not be tricked into paying for a manual that is available here for free.
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2026-10-09
- 170 new manuals added in aes, alinco, bitsavers, b&k, century, collins, dovetron, ebooks, eico, electric-eye, freq-electronics, goodwill, hickok, johnson, kantronics, micronta, military, national, rca, scientific_radio, sencore, sylvania, tennelec, triplett, uniden, and xyz.
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2026-10-21
- New beta site for public review.
Tube & Hybrid
Files
- Cascode Preamp.jpg
- Differential Hybrid Preamp.gif
- High Fidelity Vacuum Tube Pre-Amplifier Design.pdf
- Hybrid Tube FET Phono Pre.pdf
- JEL Battery Biased Preamp.jpg
- More Tube Phono Preamp Circuits.pdf
- One More Phono Preamp Design.pdf
- Pentode Phono Preamp.pdf
- Three ECC83-Based Tube Phono Preamplifier Circuits.pdf
- Vacuum State Differential Tube Phono Pre.gif
Contact and submissions
If you have a better copy of any of these manuals, or a manual which is not listed, and wish to share it, upload it to cloud.edebris.com or email the archive directly. All formats are accepted.
BAMA is offered as a free service to the internet community. Please respect the archive and its download limits.
Viewers
These viewers may be required to read some manuals in the archive:
- Sumatra PDF (Windows)
- DjView (DjVu)
- WinDjView (Windows, DjVu)
- Adobe Acrobat Reader (PDF)