While only 12 of the 203 reviews award the MM420 fewer than 4 stars, there are some issues worth noting. The most common reported user issues include difficulty reading the screen in brightly lit ...

Be careful with single-phase motors, as most single-phase motors have components to help them start or continue to run capacitors, centrifugal switches, or starting relays. Failure of these components ...

When I write about antennas, readers respond with questions on specific antennas or ask how the antennas I’ve described work (I still get email messages asking about the Gray-Hoverman and UHF rhombic ...

This year's TCL QM7K produces vivid colors and crisp brightness, enough to justify buying it over pricier OLED sets.