| Whine when you turn off an Apple IIe but not the monitor [message #342860] |
Sat, 29 April 2017 00:18  |
slickrcbdnews
Messages: 14
Registered: June 2013
Karma: 0
|
Junior Member |
|
|
Back when I was in junior high and until my sophomore year of high school, there were lots of "platinum" Apple IIe's with color monitors at school.
One thing I remember was that if you turned off the CPU first and left the monitor on, the monitor would emit this headache-inducing high pitched whine.
What would be a good way to describe this sound to somebody who is too young to remember the Apple IIe or just never had the displeasure of experiencing this whine?
I find myself having difficulty putting it into words other than what I described above. Well, other than adding things like "migraine inducer", which was literal for one classmate of mine back in 6th grade.
|
|
|
|
| Re: Whine when you turn off an Apple IIe but not the monitor [message #342863 is a reply to message #342860] |
Sat, 29 April 2017 01:38  |
|
|
Originally posted by: James Davis
On Friday, April 28, 2017 at 9:18:24 PM UTC-7, slickr...@gmail.com wrote:
> Back when I was in junior high and until my sophomore year of high school, there were lots of "platinum" Apple IIe's with color monitors at school.
> One thing I remember was that if you turned off the CPU first and left the monitor on, the monitor would emit this headache-inducing high pitched whine.
>
> What would be a good way to describe this sound to somebody who is too young to remember the Apple IIe or just never had the displeasure of experiencing this whine?
>
> I find myself having difficulty putting it into words other than what I described above. Well, other than adding things like "migraine inducer", which was literal for one classmate of mine back in 6th grade.
Like infinitely scratching a chalkboard with your fingernails!?
|
|
|
|
| Re: Whine when you turn off an Apple IIe but not the monitor [message #342866 is a reply to message #342860] |
Sat, 29 April 2017 11:58 |
|
|
Originally posted by: Brian Patrie
On 2017-04-28 23:18, slickrcbdnews@gmail.com wrote:
> Back when I was in junior high and until my sophomore year of high school, there were lots of "platinum" Apple IIe's with color monitors at school.
> One thing I remember was that if you turned off the CPU first and left the monitor on, the monitor would emit this headache-inducing high pitched whine.
>
> What would be a good way to describe this sound to somebody who is too young to remember the Apple IIe or just never had the displeasure of experiencing this whine?
>
> I find myself having difficulty putting it into words other than what I described above. Well, other than adding things like "migraine inducer", which was literal for one classmate of mine back in 6th grade.
I would compare it to ringing in the ears. Alternately, you could use
an audio editor to generate a 15 kHz tone, and play it for them.
The whine is actually there all the time; but all we went (at leat
partially) deaf to it, thanks to CRT television sets screaming at 15750
Hz for most of our lives. When you take the video signal away, the
horizontal drive circuit is free to wander where it will, and the whine
often shifts in pitch to a frequency that we're less deaf to. If you
turn the horizontal hold control (if it has one) back and forth, you'll
notice the dip in the loudness in the middle.
(These days, i have tinnitis, so everything above about 14 kHz is a
cacaphony of ringing.) :(
|
|
|
|
Members
Search
Help
Register
Login
Home
