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45 years and still works...
What's the oldest piece of speaker test gear you have?
I am cleaning out a storage unit in CA, and a week ago brought this back home...
This is a White Model 140 Audio Analyzer- it outputs pink noise, and then via an external microphone or mic and preamp will do 1/3 octave analysis on the built in LED display. The LED's actually flicker at a pretty high frequency, they look steady to the eye, but taking a picture with an iPhone results in some looking dark. To the naked eye, they're all lit up.
This was the cat's meow back in the 70's, and I used this along with a B&K 4133 pressure zone microphone with an HP preamp, and my Tektronix scope, when working with Bill Kennedy, in collaboration on speaker development. He died relatively young, from an aortic aneurysm in 1980 while I was away at a CES show. This killed out plans, but it didn't kill the passion.
You can still find these used at times, like on the Reverb site, but I haven't seen one in the formica covered carrying case like this.
Of course, sometime this summer I should hook it up into the Fuzzmeasure test system just for fun...
I am cleaning out a storage unit in CA, and a week ago brought this back home...
This is a White Model 140 Audio Analyzer- it outputs pink noise, and then via an external microphone or mic and preamp will do 1/3 octave analysis on the built in LED display. The LED's actually flicker at a pretty high frequency, they look steady to the eye, but taking a picture with an iPhone results in some looking dark. To the naked eye, they're all lit up.
This was the cat's meow back in the 70's, and I used this along with a B&K 4133 pressure zone microphone with an HP preamp, and my Tektronix scope, when working with Bill Kennedy, in collaboration on speaker development. He died relatively young, from an aortic aneurysm in 1980 while I was away at a CES show. This killed out plans, but it didn't kill the passion.
You can still find these used at times, like on the Reverb site, but I haven't seen one in the formica covered carrying case like this.
Of course, sometime this summer I should hook it up into the Fuzzmeasure test system just for fun...
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