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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.
Equalizers, Filters & Tone Controls
Directories
Crossovers
Equalizers
Filters
Loudness Controls
Misc
Stereo Synthesizers
Tone Controls
Voltage Controlled Filters
Width Controls
_About This Section
This section is all about circuits that modify frequency response. Also included here is curcuitss that fodify a stereo image, either making it wider or narrower. For Crossovers for Speakers, see the "Speakers & Headpphones" section
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.
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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)