Index of /files/Vintage Electronics/Audio/Amplifiers/_Circuits/
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100 amplifiers - part 2, 1955 - 1982.mht 14-Apr-2015 18:35 51M
100 amplifiers – part 1, 1916 - 1954.mht 14-Apr-2015 18:18 96M
10W Tube Power Amplifier.pdf 12-Jun-2023 18:09 354K
10W Tube Utility Amplifier.pdf 14-Jul-2024 02:34 50K
120W Power Amplifier with 6550.jpg 16-Mar-2015 22:47 89K
15W Amplifier with positive feedback tone shapi..> 20-Dec-2023 04:57 2M
15W Northcourt Amplifier.jpg 08-Apr-2015 18:05 109K
15W RCA Audio Power Amplifier.gif 02-Mar-2001 05:14 85K
18W Tube Power Amp with 2X EL4.gif 01-Oct-2015 18:53 6809
25W Power Amplifier,6SN7,6L6.gif 08-Apr-2015 17:05 27K
25W Power Amplifier,6SN7,EL34.gif 08-Apr-2015 17:29 48K
30W Class A Push Pull Power Amp.jpg 12-Sep-2004 01:17 94K
30W Classical AMplifier with Error Correction.jpg 12-Sep-2004 01:17 89K
35W Power Amplifier with 12AT7 drive.gif 08-Apr-2015 16:47 30K
35W Power Amplifier,6SN7,EL34.gif 08-Apr-2015 17:29 50K
4 X EL84 Power Amp with ECC81 input.jpg 01-Oct-2015 19:53 65K
50W Power Amplifier,6SN7,6550.gif 08-Apr-2015 17:29 43K
6L6 Power Amplifier.jpg 08-Apr-2015 17:05 185K
6L6 basic Amplifier.jpg 14-Apr-2015 16:38 97K
6SN7 Driver Board.jpg 16-Mar-2015 21:47 113K
7199 Tube RCA Application Notes.mht 18-May-2016 20:25 85K
88-50 Low Distortion 50W Amplifier.pdf 09-Nov-2023 00:07 2M
Brociner Mark 10 Integrated Audio Amplifier.pdf 10-Apr-2023 23:04 406K
Compact Amplifier for Residence Audio Systems P..> 15-Nov-2023 22:09 771K
Dixey 76 Power Amplifier.jpg 08-Apr-2015 18:05 101K
Dixey 77 Power Amplifier.jpg 08-Jan-2014 02:53 128K
EL84 Amp with ECC83 input.jpg 01-Oct-2015 19:53 61K
EL84 Amp.jpg 25-May-2016 18:37 114K
EL84 Based Power Amp.jpg 16-May-2016 15:41 114K
EL84 Push Pull Valve Amplifier.mht 07-Oct-2015 22:41 400K
EL84-ECC81 Amp.jpg 05-Nov-2015 04:17 95K
Hashimoto KT88 Schematic.jpg 16-Mar-2015 19:36 144K
Heater wiring - the Good the Bad and the Ugly -..> 27-Apr-2016 16:50 1M
Hi-Fi 35W Amplifier.pdf 07-Jan-2024 02:28 357K
High Quality Amplifiers.mht 14-Apr-2015 17:55 1M
Improving the Williamson Amplifier.pdf 16-Mar-2009 01:55 292K
MOSFET Follies - letting the Solid State Demon ..> 06-Mar-2014 16:54 148K
More tube hybrid circuits.mht 08-Apr-2015 18:36 48K
PAIA 9305 Tubehead Manual.pdf 31-Jul-2008 07:05 314K
Plitron Tube Amplifier Circuit Board.mht 08-Apr-2015 16:49 534K
Power Amp with EF86.jpg 17-May-2016 23:14 64K
Power Amplifier - Optimised Ultra Linear .mht 08-Apr-2015 17:33 2M
Power Amplifier,6550,Variable Damping.jpg 05-May-2015 00:14 132K
Power Amplifier,Class A,12SL7-KT88.png 08-Apr-2015 17:37 20K
Power amplifier with 6SN7 Drivera & KT88 Output..> 16-Mar-2015 22:47 114K
Practical Amplifier Diagrams-Lipman 1947.pdf 08-Aug-2020 00:01 3M
Purple Cow.gif 07-Oct-2015 21:28 139K
Quad EL84 Amp.jpg 05-Nov-2015 04:18 45K
Simplified 20W Power Amplifier.pdf 06-Apr-2024 05:10 3M
Single Ended Push Pull W.jpg 22-Sep-2004 05:38 126K
Star grounding tube amps.pdf 10-Jun-2011 18:03 20K
Stereo Amplifier Reviews Dynaco Stereo 70 Tube ..> 06-Apr-2015 18:07 439K
Stu Rubin's 10w Tube Amp Circuit.jpg 01-Apr-2002 10:20 93K
The Cathode Follower.mht 08-Apr-2015 18:53 43K
The Emperor's New Amplifier.mht 14-Apr-2015 20:49 479K
This is a schematic for the VTA ST-70 - 3 x 12A..> 14-Mar-2015 00:09 291K
Totem-Pole Output Stage.mht 08-Apr-2015 18:28 26K
Triode Operation of Pentodes.jpg 21-Apr-2015 21:09 202K
Triode power amplifier_.mht 14-Mar-2016 22:27 65K
Tube Autobias Doodle.pdf 04-Jul-2018 17:36 182K
Tube DIY Asylum.mht 20-Jul-2016 22:34 1M
Tube Power Amp with Auto Bias.gif 08-Apr-2015 16:47 69K
Tube-MOSFET hybrid OTL PP V-to-I Amplifier Larg..> 20-Jan-2020 01:06 119K
Tube-MOSFET hybrid OTL PP V-to-I Amplifier Larg..> 05-Nov-2013 22:23 50K
Tubeampprotect700X464H.jpg 22-Sep-2004 06:54 110K
Two Way Stereophonic Amplifier.pdf 06-Apr-2024 04:03 941K
Ultra Linear-trans-amp.gif 08-Apr-2015 17:32 26K
VTA trying to reel in the beast - AudioKarma_or..> 16-Mar-2015 23:25 2M
Vacuum Tube Audio Output Plitron.mht 08-Apr-2015 17:33 330K
Van Alstine Notes on Tube Power Amp Design.zip 02-Oct-2024 00:51 3M
Voltage References.mht 08-Apr-2015 18:53 40K
Williamson Amplifier (Collection of Articlees f..> 20-Oct-2016 16:15 3M
Williamson Amplifier, The.pdf 21-Aug-2020 23:13 3M
stereopowerampschematic.gif 25-Sep-2015 01:27 28K
tubetech_mp1a.gif 29-Jun-2011 18:20 103K
vacuum tube valve circuit Audio Circuits Next..> 19-Jul-2016 17:01 3M