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2026-10-09
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2026-10-21
- New beta site for public review.
Dynaco-Hafler
Directories
Files
- 35W per channel Ulab1 Modified ST70.gif
- Acro Sound UL-II.jpg
- Acro Williamson Amp.gif
- Acrosound 6-50 Class A PP Monoblocke.mht
- Acrosound 6L6 Rebuild.pdf
- Acrosound Archive.mht
- Acrosound ST20 20-20 Power Amplifier.png
- Acrosound TO-290 Power Amplifier .gif
- Acrosound WILLIAMSON AMPLIFIERS .mht
- Acrosound-st-20-DC-coupled.png
- Acrosound-Ultra Linear-II-Power Amplifier,EL34.jpg
- Article Installation of the EFB(tm) Bias Circuit in a Dynaco ST-35.mht
- AVA - Our Famous Original Dyna St-70 Rebuild Plans.mht
- AVA - Ultimate 70 Vacuum Tube Amplifier.mht
- Differences between the Dynaco PAS-2, PAS-3 and PAS-3X preamps.mht
- Differences between the original ST-70 and my VTA ST-70 .mht
- Dynaco 120W PCB Question.mht
- Dynaco Company History.mht
- Dynaco MK2 manual.pdf
- Dynaco MK3 manual.pdf
- Dynaco Mk3 Replacement PCB Instructions.pdf
- Dynaco MK6 manual.pdf
- Dynaco MkIII.jpg
- Dynaco Modified Mullard Circuit.gif
- Dynaco Modified Williamsom Power Amplifier.gif
- Dynaco Modified Williamson Tube Amplifier.gif
- Dynaco PAS-2 manual.pdf
- Dynaco PAS-3 RIAA phono equalization upgrade.mht
- Dynaco PAS-3X Manual - Stereo Preamplifier - HiFi Engine.mht
- Dynaco PAS-3X manual.pdf
- Dynaco Products and Modification Overview.mht
- Dynaco Push-Pull EL84-6BQ5 or 6V6-6AQ5 Tube Amp Schematic.mht
- Dynaco SCA-35 manual.pdf
- Dynaco ST35-Tube-Amp-Schematic.jpg
- Dynaco Transformer Specifications.pdf
- DynacoMarkIIImod-s.jpg
- Dynakit & Acrosound.mht
- DynaMutt-II.png
- Hafler & Keroes Ultra Linear 1951 Power Amplifier.jpg
- Hafler Hybrid Conversion.png
- Hafler-Keroes 6L6 UL - diyAudio.mht
- Improving the Dynaco SCA-35 & ST-35.pdf
- Learn and talk about David Hafler, American audio engineers.mht
- New Modifications for the Dynaco SCA35 and ST-35.mht
- PAS-3 series2.jpg
- PAS-3series2.jpg
- Power Amplifier - 20W - Hafler & Keroes.gif
- Quick troubleshooting guide for Dynaco tube amps.pdf
- Theory and Operation of the Ultralinear Circuit.pdf
- Triode Electronics-Dynaco Upgrades.mht
- Ultra Linear Amplifier - Hafler and Keroes.mht
- Ultra Linear Hafler & Keroes.pdf
- Ultra Linear Patent Drawings by David Hafler.png
Contact and submissions
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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)