How Tube Amplifiers Work, Part 1: The Power Supply
18:57
YouTubeUncle Doug
How Tube Amplifiers Work, Part 1: The Power Supply
Part 1 of a 2-part video series in which the circuitry of tube amplifiers is explained by breaking down the circuit of a Fender Champ amplifier into sub-units and explaining the design and function of each....in a conversational, rather than purely technical, way. This video covers the Primary (120V 60cps) circuit, the 5V and 6V circuits, the ...
968.8K viewsMar 15, 2014
Shorts
Arduino PWM Motor Speed Control with Rotary Encoder & OLED
2:14
1.3K views
Arduino PWM Motor Speed Control with Rotary Encoder & OLED
Uncle Duncan's Electronics
DIY Arduino Heart Rate Monitor Using DFRobot Sensor + I²C LCD
1:18
1.4K views
DIY Arduino Heart Rate Monitor Using DFRobot Sensor + I²C LCD
Uncle Duncan's Electronics
Uncle Doug Reviews
Let's Repair the Nicest 1964 Fender Deluxe Reverb in the Universe ;)
1:26:45
Let's Repair the Nicest 1964 Fender Deluxe Reverb in the Universe ;)
YouTubeUncle Doug
51.8K viewsApr 14, 2025
Is the Conversion of a AA-165 Bassman to AA-864 Specs Worth the Effort ?
1:21:14
Is the Conversion of a AA-165 Bassman to AA-864 Specs Worth the Effort ?
YouTubeUncle Doug
87.1K viewsJan 16, 2023
1963 Fender Brownface Vibroverb Amp......Rare, Valuable, and Worth Every Dime !!
1:11:37
1963 Fender Brownface Vibroverb Amp......Rare, Valuable, and Worth Every Dime !!
YouTubeUncle Doug
75.6K viewsApr 27, 2023
Top videos
Biasing Double-Ended Amplifier Output Tubes, Part 1: Basic Explanation & Methods
19:16
Biasing Double-Ended Amplifier Output Tubes, Part 1: Basic Explanation & Methods
YouTubeUncle Doug
184.5K viewsDec 7, 2013
Oscilloscope Basics, Part 1: Discussion, Y-Axis (Voltage) Controls, Probe Calibration
32:57
Oscilloscope Basics, Part 1: Discussion, Y-Axis (Voltage) Controls, Probe Calibration
YouTubeUncle Doug
237.3K viewsJun 13, 2018
Conversion of a PCB Amp Circuit to Point-to-Point: Fender Champ 600 to 5F1
59:02
Conversion of a PCB Amp Circuit to Point-to-Point: Fender Champ 600 to 5F1
YouTubeUncle Doug
209.1K viewsSep 27, 2019
Uncle Doug Guitar Amps
1947 National Guitar Amp......Brought Back from the Dead !!!
16:20
1947 National Guitar Amp......Brought Back from the Dead !!!
YouTubeUncle Doug
34.5K viewsAug 7, 2013
Restoration of a Late-40's/Early 50's Jackson-Guldan Guitar Amp
28:00
Restoration of a Late-40's/Early 50's Jackson-Guldan Guitar Amp
YouTubeUncle Doug
34.1K viewsApr 16, 2016
1960's Alamo Dart Guitar Amp: Ressurected from the Dead
22:08
1960's Alamo Dart Guitar Amp: Ressurected from the Dead
YouTubeUncle Doug
61K viewsOct 14, 2016
Biasing Double-Ended Amplifier Output Tubes, Part 1: Basic Explanation & Methods
19:16
Biasing Double-Ended Amplifier Output Tubes, Part 1: Basic Explanation & Methods
184.5K viewsDec 7, 2013
YouTubeUncle Doug
Oscilloscope Basics, Part 1: Discussion, Y-Axis (Voltage) Controls, Probe Calibration
32:57
Oscilloscope Basics, Part 1: Discussion, Y-Axis (Voltage) Controls, Probe Calibration
237.3K viewsJun 13, 2018
YouTubeUncle Doug
Conversion of a PCB Amp Circuit to Point-to-Point: Fender Champ 600 to 5F1
59:02
Conversion of a PCB Amp Circuit to Point-to-Point: Fender Champ 600 to 5F1
209.1K viewsSep 27, 2019
YouTubeUncle Doug
Biasing Single-Ended Amplifier Output Tubes: A Basic Explanation and Demonstration
21:05
Biasing Single-Ended Amplifier Output Tubes: A Basic Explanation and Demonstration
149.2K viewsDec 4, 2013
YouTubeUncle Doug
How to Scratch-Build a Vintage Amp, Part 1: Research and Methods
18:01
How to Scratch-Build a Vintage Amp, Part 1: Research and Methods
179.7K viewsSep 23, 2015
YouTubeUncle Doug
Biasing Double-Ended Amplifier Output Tubes, Part 2: Demonstration and Discussion
21:22
Biasing Double-Ended Amplifier Output Tubes, Part 2: Demonstration and Discussion
119.3K viewsDec 10, 2013
YouTubeUncle Doug
Two Types of Tube Amplifier Hum and How to Determine the Source
5:44
Two Types of Tube Amplifier Hum and How to Determine the Source
510.6K viewsNov 13, 2013
YouTubeUncle Doug
44:12
Impedance Ratio: The Easiest Way to Decipher Output Transformers
129.1K viewsMar 8, 2019
YouTubeUncle Doug
26:38
Phase Inverters....for the Common Man
257.8K viewsApr 24, 2014
YouTubeUncle Doug
1:12:06
Scratch-Build of a Single-Ended KT88 Amp.......Part 3
22.5K views9 months ago
YouTubeUncle Doug
1:01:54
Part 3 of the Suprinceton Video Series: Final Wiring, Assembly & Testing
30.3K viewsDec 8, 2023
YouTubeUncle Doug
21:53
How to Recone a Speaker
308.6K viewsJun 4, 2016
YouTubeUncle Doug
14:16
How to Scratch-Build A Vintage Amp, Part2: Schematic Review and Modifications
91.4K viewsSep 26, 2015
YouTubeUncle Doug
9:14
Build Your Own Current Limiter for Protection when Repairing and Testing Electronic Equipment
419.6K viewsAug 1, 2013
YouTubeUncle Doug
14:23
Hammond AO44 Reverb Driver Converted into a Guitar Amplifier
42.6K viewsMay 10, 2013
YouTubeUncle Doug
23:59
Guitar Amp Tubes Part 2: Pentodes and Beam Tetrodes
129.7K viewsDec 1, 2014
YouTubeUncle Doug
33:36
Tube Reverb, Part 2: Transducers, Tanks, Tone, and Signal Mixing
34.5K viewsMay 25, 2018
YouTubeUncle Doug
15:43
How to Identify Amplifier Power Transformer Leads
187.4K viewsSep 23, 2014
YouTubeUncle Doug
1:16:33
The Effect of Output Tube Bias on Tone, Gain, and Headroom.....A Side-by-Side Comparison
146.7K viewsDec 4, 2020
YouTubeUncle Doug
47:31
Let's Add REVERB to a Vibro-Champ Circuit......Part 1
46.4K viewsMar 18, 2025
YouTubeUncle Doug
22:08
1960's Alamo Dart Guitar Amp: Ressurected from the Dead
61K viewsOct 14, 2016
YouTubeUncle Doug
1:26:45
Let's Repair the Nicest 1964 Fender Deluxe Reverb in the Universe ;)
51.8K viewsApr 14, 2025
YouTubeUncle Doug
1:21:14
Is the Conversion of a AA-165 Bassman to AA-864 Specs Worth the Effort ?
87.1K viewsJan 16, 2023
YouTubeUncle Doug
41:53
Isolation Transformers: Internal Design and Safe Use with Oscilloscopes
141.6K viewsJun 23, 2018
YouTubeUncle Doug
53:44
BF Super Reverb in for a Tune Up.....Botched Wiring & Bad Tubes.....but a Happy Ending
76.8K viewsMar 17, 2023
YouTubeUncle Doug
14:12
Converting the Fender Princeton to Adjustable Grid Bias
74.6K viewsJan 22, 2014
YouTubeUncle Doug
22:08
Power Supplies, Part 4: The Voltage Doubler
82.4K viewsMay 14, 2016
YouTubeUncle Doug
18:34
How to Scratch-Build a Vintage Amp, Part 6: Cabinet Construction and Machining of Chassis
57.9K viewsOct 8, 2015
YouTubeUncle Doug
16:59
Let's Build the Mystery Amp, Part 3: Fabricate an Aluminum Chassis
28.8K viewsMar 13, 2018
YouTubeUncle Doug
See more
Static thumbnail place holder

Short videos

2:14
Arduino PWM Motor Speed Control with Rotary Encoder & OLED
1.3K views5 months ago
YouTubeUncle Duncan's Electronics
1:18
DIY Arduino Heart Rate Monitor Using DFRobot Sensor + I²C LCD
1.4K views6 months ago
YouTubeUncle Duncan's Electronics
2:19
I²C Encoder → 0–99 Steps: Build a Smart 10k Pot (Arduino)
177 views7 months ago
YouTubeUncle Duncan's Electronics
1:56
Arduino Digital Volume: Rotary Encoder + X9C103 (Log dB)
1.1K views7 months ago
YouTubeUncle Duncan's Electronics
1:29
dumble amp circuit #diy #vintage #audio #antique #retro #cool #guitaramp
4.4K views3 months ago
YouTubeD-lab Electronics
3:01
ALL MP3 SPEAKER POWER BUTTON JUMPER SOLUTION 2026
300 views3 weeks ago
YouTubeUNCLE TEE GSM1
2:10
Controlling a 2-Wire Brushless Fan with PWM (Supply Chopping)
699 views5 months ago
YouTubeUncle Duncan's Electronics
1:52
Argus C3 With Electronic Flash
469 views6 months ago
YouTubeUncle Don
1:03
this is what loneliness can do to an engineer #electronics #arduino #diy #engineering
43.4K views1 month ago
YouTubeuncleTony
2:07
iPhone 11 Disassembly & Internal Parts Guide #shortvideo #viral #repair
2 weeks ago
YouTubeUNCLE TEE GSM1
1:10
radio mouse house #diy #vintage #audio #antique #retro #old #cool #guitaramp
6.2K views3 months ago
YouTubeD-lab Electronics
1:28
Pilot HIFI console #diy #vintage #audio #antique #retro #old #cool #guitaramp #music
4K views3 months ago
YouTubeD-lab Electronics
1:19
6V6 OptiPlex amp #diy #vintage #audio #antique #retro #broken #old
2.8K views4 months ago
YouTubeD-lab Electronics
0:58
Princeton HiFi test #diy #vintage #audio #antique #old #cool #guitaramp #music
4K views2 months ago
YouTubeD-lab Electronics
1:28
6K6 OptiPlex Tube amp #diy #vintage #audio #antique #retro #broken #old
3.9K views4 months ago
YouTubeD-lab Electronics
1:00
SMSL pl200 CD HiFi #diy #vintage #audio #antique #retro #old #cool #guitaramp
4.4K views3 months ago
YouTubeD-lab Electronics
0:57
A Ma Maniére 6 ‘Smokey Mauve’: Worth the Hype or Pass?
2.1K views6 months ago
YouTubeE Doug, Uncle Jer, Spensanity
1:09
Super 6L6 amp #diy #vintage #repair #audio #antique #retro #broken #old #cool
7.1K views6 months ago
YouTubeD-lab Electronics
0:52
Pilot HiFi Key #diy #vintage #audio #antique #retro #old #cool #guitaramp #music
2.5K views3 months ago
YouTubeD-lab Electronics
0:49
Fisher 500C help #diy #vintage #audio #antique #retro #broken #old #cool
2.5K views4 months ago
YouTubeD-lab Electronics
Static thumbnail place holder