Old School
My channel was started primarily to inspire people to repair things themselves. A few years ago it came to my attention that even grown-up men that I knew could barely do anything at all with their hands. I have even met men that did not even know how to hang a shelf, for example. Also, for many things a specialist is needed nowadays. Modern product design is also geared toward letting people do less and less themselves. Ever try to work on a new car? I remember my dad working on his old Dodge Dart whenever it needed maintenance.
I primarily focus on repairing transistorized vintage audio equipment, mainly Japanese or American equipment from the 1960s to the 1980s. Here and there I might do a restoration, but that is altogether different from a repair. Also, I often try to do the repairs with basic test equipment, based on the realization that every person does not have expensive and exotic test equipment at their disposal.
Realistic STA-47 monitor switch problem
Realistic STA-47 Stereo Receiver -- Part2
Realistic STA Stereo Receiver -- Part 1
Marantz Square Wave Problem.
Kenwood KA-3700 Amplifier. Ongoing project.
The Oscilloscope Beam Finder Switch (beginner's video)
Marantz 2215B Stereo Receiver Input Sensitivity Test
Basic testing of an optocoupler.
Audio Repair Form for Downloading
Marantz 2215B Stereo Receiver Lights -- PART 2
Marantz 2215B Stereo Receiver Lights PART 1
Watts/Voltage (Peak to Peak) Table
Watts and Voltage Table to Download
The Volume Control
Front Panel Marantz 2215B (threaded insert removal)
Marantz 2215B Stereo Receiver Phono Amp
Marantz 2215B Power Supply Voltage Check
Midpoint voltage of Marantz 2215B
Marantz 2215B Stereo Receiver Repair -- Part 2
Marantz 2215B Stereo Receiver -- PART 1
Scott 330 Stereo Receiver -- Further Work
Scott 330RL Stereo Receiver Troubleshooting And Repair
Video showing undermodulation and overmodulation
Luxman R-341 Stereo Receiver Idling Current Adjustment
Unknown Transformer Identification -- Voltages Only
Analog Oscilloscope Alternate And Chop Mode
Full-Scale Current And Internal Resistance Of Old Analog Meter
Transistor Leakage Testing (ICEO )
Potentiometer Testing Experiment With A Signal Tracer (Attempt)
Sansei 6100 Signal Tracer & Injector Repair