Few people have heard of it, yet many consider John Blankenbaker's KENBAK-1 to be the first commercial personal computer.

Koss introduced these headphones over 40 years ago, and they remain affordable favorites to this day.

ElectroVoice CO-85 Lavalier Microphone

Ev_co85_01b

In my line of work, I use a lot of tiny lavalier microphones. These are the mics that you'll see clipped to a speaker's jacket, or clamped to a necktie.  The problem with my collection of mics is that they are all rather large compared to the speck-of-rice sized mics available today.  Large and silver, I should add.  Sure, I could buy a new mic that's easier to camouflage but even those sometimes have unsightly alligator clips that are difficult to hide.

Ev_co85_03 Electro-Voice had the answer years ago (which makes sense - they invented the first practical lavalier mic).  The dynamic microphone element is isolated in a little tie-tack sized enclosure.  It pierces the cloth just like a tie-tack does, and it seats into the rest of the microphone hidden behind the talent's clothes.  The signal from the mic element is carried through the pin arrangement, and all the audience sees is what looks like a little decorative button.

The CO-85 was unconventional even when it came out - check out the ominous label on the hammered metal case!  Ev_co85_02Though the mic looks like it may have come out in the 60's or 70's, the underlying concept seems like a good idea, even today.   The cord remains totally secreted inside one's clothes, so there's no awkward taping of wires.  This would work especially well for female talent, since sometimes women's fashions are made of thinner material that's difficult to clamp a mic onto without pulling, ruining the lines of the dress, and getting the audio guy yelled at (usually me) .  I think that I may finally get around to cleaning this old boy up, and start using it!  Anyone ever seen one of these before?

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