Schematics Database

50V UTC Recommented Amp Circuit.gif

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

50W Ch Amp-EL34_UL-B.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

50W EL34 Ultra Linear Amplifier.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

50W-Ch Amp-EL34_UL-A.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

6CA7 Power Amplifier using 12AT7 drive tubes.gif

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

7199 RCA Application Notes.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

AVA UntraValve reviews - No Schematic.zip

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Acro Sound UL-II.png

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Acro amplifier with 6L6 Output.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Acrosound 6L6 Rebuild.pdf

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Acrosound Archive.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Acrosound ST-20 DC-coupled 20-20W Amp.jpg

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Acrosound-Ultra Linear-II-EL34-PP-ed.png

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Aikido Split-Load Phase Splitter & Headphone Amplifier.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Ampeg D-12-NF Amplifier.gif

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Audio amplifier push pull output stage_.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Bogen DO30A.jpg

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Cathode Coupled Amplifier Calculator ~.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Cathode Driver Power Amp.jpg

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Choosing and Using Vacuum Tubes.pdf

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Circlotron Amplifier_.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Circular Amplifiers -Part 4.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Class A Push Pull Ultra Linear Power Amp12SL7-KT88-Push-Pull-Tube-Amp-.jpg

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Contest Winning Amplifier_.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

DIY 6DJ8 (ECC88) Tube Hi-Fi Headphone Amplifier Project.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

David Hafler, American audio engineer Short Bio with Pictures.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Design Considerations - 2.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Design Considerations.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Designing and Building Audio Amplifiers - Building 50W-CH EL34 Ultra Linear Amplifier.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Designing and Building Audio Amplifiers - Designing.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

DynaMutt ST-70 Driver Board Noval Versionl.pdf

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

DynaMutt ST-70 Driver Board Octal Version.pdf

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

DynaMutt-II ST-70 Driver Board.png

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Dynaco Mark III Update.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Dynaco ST-70 FS - diyAudio.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Dynaco ST-70 Re-Emgineering.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Dynaco ST-70 chassis PCB cutout drawing.png

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Dynaco Series 70 Series 2 Pictures (1).jpg

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Dynaco Series 70 Series 2 Pictures (2).jpg

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Dynaco Series 70 Series 2 Pictures (3).jpg

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Dynaco Series 70 Series 2 Pictures (4).jpg

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Dynakit & Acrosound - Not in English.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Frederick Britton Llewellyn - Noise in Vacuum Tubes and Attached Circuits.pdf

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Futterman Trnsformerless Tube Power Amp with Autobias.jpg

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Hashimoto KT88 Power Aplifier.jpg

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Heater wiring - the Good the Bad and the Ugly - diyAudio.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

JE Labs PP2A3 P0wer Amp.gif

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

MOSFET Follies - letting the Solid State Demon into your tube amp.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

OTL Tube Headphone Amplifier.jpg

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research

Optimized ultra-linear.mht

Category: Audio > Circuits > Power Amplifiers > Tube > Tube Amplfier Research