LM386 chip amp on the audio analyzer
JohnAudioTech
LM386 chip amp on the audio analyzer
8:37
Counterfeit TDA2050 performance test - interesting results!
JohnAudioTech
Counterfeit TDA2050 performance test - interesting results!
11:14
TDA2050 real vs. fake amplifier chip on the analyzer
JohnAudioTech
TDA2050 real vs. fake amplifier chip on the analyzer
12:50
DIY LED stroboscope and transistor speed
JohnAudioTech
DIY LED stroboscope and transistor speed
20:23
Stackstone turntable review. Internal speakers with good sound?
JohnAudioTech
Stackstone turntable review. Internal speakers with good sound?
16:30
TDA7377 $10 stereo amplifier board on the audio analyzer
JohnAudioTech
TDA7377 $10 stereo amplifier board on the audio analyzer
10:30
Night vision camera review - FNIRSi NVS 40
JohnAudioTech
Night vision camera review - FNIRSi NVS 40
11:42
My favorite COB LED modules and DIY fixtures
JohnAudioTech
My favorite COB LED modules and DIY fixtures
8:27
TPA3116 amplifier on the QA403 audio analyzer
JohnAudioTech
TPA3116 amplifier on the QA403 audio analyzer
15:12
TDA2050 vs LM1875 on the QA403 audio analyzer
JohnAudioTech
TDA2050 vs LM1875 on the QA403 audio analyzer
18:29
Angels Horn AH6 turntable - meets the Quant Asylum audio analyzer
JohnAudioTech
Angels Horn AH6 turntable - meets the Quant Asylum audio analyzer
18:01
Square wave stability tests for audio amplifiers
JohnAudioTech
Square wave stability tests for audio amplifiers
19:54
Car audio vintage "power booster" amplifier tested
JohnAudioTech
Car audio vintage "power booster" amplifier tested
11:05
Recovering weak 12v lead acid battery - JAT Xtra content
JohnAudioTech
Recovering weak 12v lead acid battery - JAT Xtra content
7:07
When audio cables matter - source impedance and cable capacitance
JohnAudioTech
When audio cables matter - source impedance and cable capacitance
9:57
Internal resistance meter review - FNIRSI HRM-10
JohnAudioTech
Internal resistance meter review - FNIRSI HRM-10
13:22
Defective LM4562 opamp ICs with "popcorn" noise
JohnAudioTech
Defective LM4562 opamp ICs with "popcorn" noise
15:25
The audio amplifier repair that wasn't
JohnAudioTech
The audio amplifier repair that wasn't
11:06
Build acrylic turntable cover - plexiglass box DIY
JohnAudioTech
Build acrylic turntable cover - plexiglass box DIY
25:19
JAT501 amplifier tested on the Quant Asylum QA403 audio analyzer
JohnAudioTech
JAT501 amplifier tested on the Quant Asylum QA403 audio analyzer
15:31
Where are the projects? How much do I earn on YouTube?
JohnAudioTech
Where are the projects? How much do I earn on YouTube?
8:54
Douk Audio A100 amplifier test & review
JohnAudioTech
Douk Audio A100 amplifier test & review
24:18
FNIRSI 2C53P oscilloscope / function generator / multimeter all in one - review
JohnAudioTech
FNIRSI 2C53P oscilloscope / function generator / multimeter all in one - review
24:18
ESP phono preamp power supply and case - project complete
JohnAudioTech
ESP phono preamp power supply and case - project complete
8:19
Dayton Audio B65 new budget speaker review
JohnAudioTech
Dayton Audio B65 new budget speaker review
15:27
Wire tracer cobbled together
JohnAudioTech
Wire tracer cobbled together
11:05
Angels Horn H002 BT turntable review - Good starter table with an issue
JohnAudioTech
Angels Horn H002 BT turntable review - Good starter table with an issue
17:50
Dealing with amplifier power on/off pop sounds
JohnAudioTech
Dealing with amplifier power on/off pop sounds
7:28
Phono preamp kit build and test - Elliott Sound Products
JohnAudioTech
Phono preamp kit build and test - Elliott Sound Products
19:18
Oscillating amplifier - Tips to fix
JohnAudioTech
Oscillating amplifier - Tips to fix
13:23
Vintage Dual 1237 turntable plus what going on with this channel
JohnAudioTech
Vintage Dual 1237 turntable plus what going on with this channel
7:39
Solar eclipse - April 8th 2024
JohnAudioTech
Solar eclipse - April 8th 2024
3:34
Douk Audio H7 Pro amplifier XLR level issue
JohnAudioTech
Douk Audio H7 Pro amplifier XLR level issue
11:27
Douk Audio H7 Pro class D amplifier review (TPA3255)
JohnAudioTech
Douk Audio H7 Pro class D amplifier review (TPA3255)
17:23
QuantAsylum QA403 Audio Analyzer first look
JohnAudioTech
QuantAsylum QA403 Audio Analyzer first look
18:16
The blue LEDs that existed before the current InGaN blue LEDs
JohnAudioTech
The blue LEDs that existed before the current InGaN blue LEDs
6:37
Transistor breakdown voltage demonstration
JohnAudioTech
Transistor breakdown voltage demonstration
12:39
JAT501 amplifier "hot rodded" for more power
JohnAudioTech
JAT501 amplifier "hot rodded" for more power
17:58
1 By One turntable motor replacement and quick review
JohnAudioTech
1 By One turntable motor replacement and quick review
16:02
DOUK AUDIO ST-01 Pro amplifier performance tests with teardown
JohnAudioTech
DOUK AUDIO ST-01 Pro amplifier performance tests with teardown
17:13
DIY speaker project revival - PT1 enclosure volume
JohnAudioTech
DIY speaker project revival - PT1 enclosure volume
14:38
DIY bench lighting project - simple as it gets
JohnAudioTech
DIY bench lighting project - simple as it gets
9:37
Review of some cheap speakers
JohnAudioTech
Review of some cheap speakers
14:58
Fosi Audio P3 Pre-Amplifier review & analysis
JohnAudioTech
Fosi Audio P3 Pre-Amplifier review & analysis
27:04
Fosi Audio V3 on 48 volts - power measurement
JohnAudioTech
Fosi Audio V3 on 48 volts - power measurement
10:39
Changes in my life - the reasons I've been gone
JohnAudioTech
Changes in my life - the reasons I've been gone
17:58
Amplifier modification to fix clipping asymmetry
JohnAudioTech
Amplifier modification to fix clipping asymmetry
18:20
Fosi Audio Class D amp - model 3V review - TPA3255
JohnAudioTech
Fosi Audio Class D amp - model 3V review - TPA3255
17:01
Grommes model G-62 commercial duty amplifier
JohnAudioTech
Grommes model G-62 commercial duty amplifier
14:35
Carver m400t amplifier repair final
JohnAudioTech
Carver m400t amplifier repair final
17:05
TDA7268 amplifier video from 2009 - JAT Xtra content
JohnAudioTech
TDA7268 amplifier video from 2009 - JAT Xtra content
2:01
Fosi Audio TB10D amplifier review
JohnAudioTech
Fosi Audio TB10D amplifier review
18:08
Null test for comparing amplifiers
JohnAudioTech
Null test for comparing amplifiers
9:43
SWTP Tigersaurus amplifier modification completed
JohnAudioTech
SWTP Tigersaurus amplifier modification completed
17:41
Amplifier feedback compensation and stability - JAT801
JohnAudioTech
Amplifier feedback compensation and stability - JAT801
21:09
FNIRSI tablet style 2 channel oscilloscope model 1013D review
JohnAudioTech
FNIRSI tablet style 2 channel oscilloscope model 1013D review
16:52
tigersaurus 210/A stability work - PART 2
JohnAudioTech
tigersaurus 210/A stability work - PART 2
17:12
SWTP Tigersaurus 210/A amplifier oscillation problem
JohnAudioTech
SWTP Tigersaurus 210/A amplifier oscillation problem
21:35
JAT801 amplifier stability tests
JohnAudioTech
JAT801 amplifier stability tests
16:23
Resistor bank dummy load for testing amplifiers - DIY build
JohnAudioTech
Resistor bank dummy load for testing amplifiers - DIY build
8:13
SWTP Tigersaurus Amplifier 210/A power test & checkup
JohnAudioTech
SWTP Tigersaurus Amplifier 210/A power test & checkup
9:11
AM radio interference - seeking the source
JohnAudioTech
AM radio interference - seeking the source
11:27
JAT801 audio amplifier assembly and first power up
JohnAudioTech
JAT801 audio amplifier assembly and first power up
23:32
Transistor case style confusion
JohnAudioTech
Transistor case style confusion
4:52
Amplifier turn-on pop and audible noise - budget board comparison
JohnAudioTech
Amplifier turn-on pop and audible noise - budget board comparison
16:52
JAT801 amplifier and speaker design / build project updates
JohnAudioTech
JAT801 amplifier and speaker design / build project updates
7:49
Speaker design and build project - Part 1
JohnAudioTech
Speaker design and build project - Part 1
15:09
Tigersaurus 210/A amplifier schematic walkthrough
JohnAudioTech
Tigersaurus 210/A amplifier schematic walkthrough
12:20
Badly corroded SATA power connector
JohnAudioTech
Badly corroded SATA power connector
3:47
JAT801 150 watt audio amplifier project - preliminary design PT1
JohnAudioTech
JAT801 150 watt audio amplifier project - preliminary design PT1
11:30
LED Bulb burnout - what fails inside?
JohnAudioTech
LED Bulb burnout - what fails inside?
11:04
Class G & H audio amplifiers - How they work
JohnAudioTech
Class G & H audio amplifiers - How they work
9:25
Class D audio amplifiers - How they work
JohnAudioTech
Class D audio amplifiers - How they work
10:18
Class B & AB audio amplifiers - an introduction - Part 2
JohnAudioTech
Class B & AB audio amplifiers - an introduction - Part 2
11:24
Audio amplifier class introduction - Part 1: Class A
JohnAudioTech
Audio amplifier class introduction - Part 1: Class A
6:56
InfiRay Xview V2 thermal imaging camera review - Great tool for the bench!
JohnAudioTech
InfiRay Xview V2 thermal imaging camera review - Great tool for the bench!
13:08
Alternator failure on exercise bike
JohnAudioTech
Alternator failure on exercise bike
19:25
Cassette tape recorder common problem repair
JohnAudioTech
Cassette tape recorder common problem repair
7:58
Carver M-400 completed repair
JohnAudioTech
Carver M-400 completed repair
16:51
Kill A Watt meter not working right - Repair
JohnAudioTech
Kill A Watt meter not working right - Repair
9:37
Parts to stock for the electronics hobbyist
JohnAudioTech
Parts to stock for the electronics hobbyist
17:15
Universal stereo amplifier TDA2050 Part 2 - finished
JohnAudioTech
Universal stereo amplifier TDA2050 Part 2 - finished
22:29
Building the universal Stereo amplifier TDA2050 Part 1
JohnAudioTech
Building the universal Stereo amplifier TDA2050 Part 1
14:27
Class B audio amplifier revisited with new transistors
JohnAudioTech
Class B audio amplifier revisited with new transistors
14:46
Carver M-400t amplifier repair PART 3
JohnAudioTech
Carver M-400t amplifier repair PART 3
20:54
Transistors for amplifier projects and tinkering, D44VH10 / D45VH10
JohnAudioTech
Transistors for amplifier projects and tinkering, D44VH10 / D45VH10
16:35
Carver M-400t amplifier repair PART 2
JohnAudioTech
Carver M-400t amplifier repair PART 2
21:53
Carver M-400 / M-400t amplifier evaluation for repair PART1
JohnAudioTech
Carver M-400 / M-400t amplifier evaluation for repair PART1
16:35
JFET amplifier design with breadboard demonstration PT2
JohnAudioTech
JFET amplifier design with breadboard demonstration PT2
19:04
Junction Field Effect Transistor (JFET) introduction and characteristics PT1
JohnAudioTech
Junction Field Effect Transistor (JFET) introduction and characteristics PT1
16:51
12 volt power supply stopped regulating - What went wrong?
JohnAudioTech
12 volt power supply stopped regulating - What went wrong?
19:24
JAT501 audio amplifier power supply and collaboration
JohnAudioTech
JAT501 audio amplifier power supply and collaboration
17:14
Repair vintage 1970s AM/FM portable radio Soundesign
JohnAudioTech
Repair vintage 1970s AM/FM portable radio Soundesign
15:15
3 new audio amplifier projects!
JohnAudioTech
3 new audio amplifier projects!
13:22
Constant current source in the emitter circuit. Where'd the signal go?
JohnAudioTech
Constant current source in the emitter circuit. Where'd the signal go?
7:37
Adding a constant current source to a differential amplifier to improve common mode rejection
JohnAudioTech
Adding a constant current source to a differential amplifier to improve common mode rejection
15:47
TDA7498E class D stereo amplifier board test and review
JohnAudioTech
TDA7498E class D stereo amplifier board test and review
16:44
JAT501 amplifier project conclusion + Inline board + PCB files available
JohnAudioTech
JAT501 amplifier project conclusion + Inline board + PCB files available
12:10
How to design a single transistor amplifier with voltage divider bias
JohnAudioTech
How to design a single transistor amplifier with voltage divider bias
19:04
LED bulb interference with radio reception
JohnAudioTech
LED bulb interference with radio reception
10:32