MacFixIt reader Silvio Demilio describes a strange noise generated by his 17" PowerBook G4, corroborated by other users: "I recently purchased a PowerBook G4 17". It has two annoying noises an ...

So I picked up a new phono preamp recently, a Pro-Ject Tube Box S2. It's a nice unit and sounds great, but I've noticed that I'm getting a low-level buzz from its outputs. (It's definitely a buzz, not ...

A conveyor control system activates a motor once every 12 sec over its 10-yr service life. An automotive carrier system must work 24/7/365 days a year. And a high-speed RFID system must operate near ...

A good digital multimeter (DMM) is key to diagnosing compressor problems in general. For instance, in a previous article (May 15 issue of The NEWS) we discussed using the DMM to read suction and ...

Bob is a service technician who is well trained and nationally certified. However, he has sometimes suffered from the same confusion that all technicians occasionally do — the facts that he gathers ...

Vehicles are notoriously noisy environments, and I don't mean the kind of noise you can hear. All those spark plugs, actuators, alternators, and motors generate enough noise to disrupt communications ...