November 2007
Intermediate to advanced
736 pages
46h 32m
English
Content preview from Consumer ElectronicsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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CRYSTAL HEADPHONES
In the 1950s and 1960s an assortment of crystal earphones appeared on the market, being essentially miniaturised counterparts of the crystal (or piezoelectric) loudspeakers.
Involving few metallic components, they could be made very small and light, as well as lending themselves to mass production. Many, infact, were designed to plug directly into the ear canal, being intended for use with portable radio sets and tape players. A few special quality models have been released over the years for monitoring situations but in general, crystal headphones have slotted into a utility role rather than as a medium for hi-fi listening.
As with crystal loudspeakers, their impedance is predominantly capacitive, measuring many thousands ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.