Balanced vs Unbalanced Connections

An Unbalanced connection has one signal wire and one ground wire that serves as a voltage level reference and often also as a shield against interference. Any noise induced in the signal wire will appear in the terminating circuit.

A Balanced connection has two signal wires, with the second signal being of opposite polarity (180 degrees out of phase) to the first. Any noise induced in the connection will appear on both signals. At the receiving circuit, the second signal is inverted and added to the first signal. This doubles the level of the signal and subtracts out all the noise.

Vogtle Reactor
Nuclear power is likely the only green technology that will enable us to deal with the problem of earth warming.

By DoctorG15 on April 28, 2023

Grave Opened
A brief discussion concerning what the Bible says about resurrection.

By DoctorG15 on April 27, 2023

This is primarily an excerpt from an article on Malware from AI Bots that appeared in Wired Magazine.

By DoctorG15 on April 28, 2023

Quite some time ago (1990) I taught a somewhat extended series of sessions on what I called The Parables of John. Now most Bible readers know that one distinctive of John’s Gospel is that he does not have any of the parables as seen in the three synoptic gospels. This title was a “hook” to promote interest in the series. See below for the explanation.

By DoctorG15 on November 8, 2022

In late 2021, Snap One introduced their new Episode WAKE in-wall amplifier wall module. This device is designed to be mounted in a deep single-gang wall switch socket. It can also be mounded in an open-back low-voltage wall box, since its 15-volt power supply is located remotely. The device incorporates Bluetooth technology along with AI-based WiFi smart technology and Class D amplifier topology to provide a device that supplies 25 watts/channel of power to a pair 4-ohm speakers.

By DoctorG15 on June 18, 2022

This sub is basically a 10-inch cube, with two opposed 6.5-inch drivers, that goes as low as 11 Hz. This performance is made possible by an impressive combination of enclosure design, driver coil arrangement, and speaker cone support surround.

By DoctorG15 on October 9, 2021

The Presonus Revelator io24’s simple loopback mixer makes it easy to add backing tracks to your live stream performance or conference in a Zoom caller to your podcast.

By DoctorG15 on August 12, 2021

I have come to realize that most teachers on spiritual gifts have a mistaken understanding of what the New Testament actually teaches about spiritual gifts. Let me explain….

By DoctorG15 on May 11, 2021

Some time ago, I needed an interface for making multi-channel audio recordings. Cost was a major factor, and I needed at least 16 microphone channels. After researching many options, I decided to get a Behringer X18 digital mixer. At the time this was the most cost-effective digital mixer available.

By DoctorG15 on May 10, 2021