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Banner “X” Pole Design

It’s often hard to find suitable places to tie a temporary indoor banner. An “X” pole will keep it taught and allow it to be leaned against a wall or chairs. Poles made of 3/4″ PVC pipe are easily fabricated and may be joined by short scraps of 1″ PVC pipe as shown elsewhere on…

Audio Engineering 101 – The Lab Course?

Ever since I moved to the retirement community where I have lived since 2013 I’ve been struggling with the bad acoustics of our meeting hall. There is so much reverberaton that the sound from our PA system gets muffled and is prone to annoying feedback. We are seniors, many with hearing loss. The staff does…

About Hearing Aid Technology

Hearing aids are a business and a technology product. But the sale of hearing aids has been cloaked in an aura of mystery and pseudo-medical veneer. Although audiology is a profession, and practitioners are licensed and awarded the title of “Doctor”, if there is something wrong with your ears, you see a physician, not an…

Don’t Scrap That Old Computer

The relentless march of new technology make digital devices obsolete in five years or less. Manufacturers have no incentive to make software and hardware “imporvements” compatible with legacy products. Consequently all of us have old laptops, old phones, and old tablets that won’t accept the latest software upgrades. Our legacy devices still can do what…