Chip with simple program for Toy

[Arny Krueger]

"jakdedert" <jakdedert@bellsouth.net> wrote in message
news:bIPKj.20085$9O.6154@bignews3.bellsouth.net

Arny Krueger wrote:
snip
if memory serves.

Was that a pun?

It would have been had I been thinking that hard! ;-)

 

[Arny Krueger]

"jakdedert" <jakdedert@bellsouth.net> wrote in message
news:bIPKj.20085$9O.6154@bignews3.bellsouth.net

Arny Krueger wrote:
snip
if memory serves.

Was that a pun?

It would have been had I been thinking that hard! ;-)

 

[geoff]

Green Xenon [Radium] wrote:

Hi:

Is it possible to have a purely-analog chip that stores audio without
using any form of sampling?

If an audio cassette does not require sampling then why would an
analog audio chip?

There are the old analogue 'bucket-brigade' chips, but that was an analogue
form of sampling.

Time to up the meds again, maybe.

geoff

 

[geoff]

Eeyore wrote:

Bob Masta wrote:

"Green Xenon [Radium]" <glucegen1@excite.com> wrote:

Is it possible to have a purely-analog chip that stores audio
without using any form of sampling?

If an audio cassette does not require sampling then why would an
analog audio chip?

Actually, that audio cassette *does* use sampling. One sample
interval is the width of a magnetic domain on the tape, at the rate
it passes by the head gap.

Ah, you beat me to it.

Me too...

geoff

 

[Don Klipstein]

In <Dtmdnf-_Wvr3s2banZ2dnUVZ_rXinZ2d@comcast.com>, Stephen J. Rush wrote:

On Tue, 08 Apr 2008 00:51:36 -0700, mowhoong wrote:

There are wide value of lighting capacitor, range from 4 uf to 50 uf.
but I am not sure which value to pick for my 40 W fluorescent light run
in 230 volts ac. Can any person help me in this . Thanks and Regards

Lighting _capacitor?_ None of my line-operated fluorescent lamps has a
capacitor. I suppose one could use a capacitor instead of the usual
inductive ballast, but I've never seen it.

I have seen capacitive fluorescent lamp ballasts.

Sometime in the late 1970's, I saw in the trash an already-antique
fixture with a "lead/lag" ballast - with one lamp leading and one lamp
lagging.

Sometime in the early 1990's, I got a 3-4-or-so-watt plug-in fluorescent
"nightlight" with a capacitive ballast.

Sometime in the mid 1990's, I got a 20 watt super-slim fluorescent
fixture of the Lights of America brand.

In all of these cases, some inductance was added in series with the
capacitor. Otherwise, the current waveform would be a spiky one with high
peak current, resulting in reduced efficiency (the low pressure mercury
arc is nonlinear in producing shortwave UV) and extra wear on the
electrodes.

That lower wattage plug-in light now buzzes like mad - the inductor must
have become a little unglued. I never did use it much - that's why it
still works at all after a good 15 years.

- Don Klipstein (don@misty.com)

 

[Phil Allison]

"Hammy"

The JFET (J2) is supposed to turn off Q13 when the switch to the
battery opens. This cuts power to the load in the green box (D2, D3
and the two resistors). Then the P-channel FET (M1) conducts supplying
the load in the yellow box.

Schematic is here.

http://i25.tinypic.com/20ze5g7.png

This all works in simulations but when I breadboard it the JFET pulses
on and off at 50% duty at 60 Hz. When I connect my probe between the
JFET gate and ground the circuit works correctly.

What's causing this?

** Geeeez -

do ya reckon it might be stray coupling of 60 Hz supply hum into the gate
of that FET ?




..... Phil

 

[Mr.T]

"Dave Platt" <dplatt@radagast.org> wrote in message
news:tiosc5-n24.ln1@radagast.org...

In article <47faff63$0$24124$4c368faf@roadrunner.com>,
Green Xenon [Radium] <glucegen1@excite.com> wrote:

Hi:

Is it possible to have a purely-analog chip that stores audio without
using any form of sampling?

If an audio cassette does not require sampling then why would an analog
audio chip?

You asked very much this same question, just over one year ago, in the
sci.electronics.basics newsgroup.

You got a whole bunch of responses, which I believe covered the
issue quite well.

I suggest that you go back and read the previous responses, rather
than asking essentially the same question (in your usual ill-defined
manner) once again.

You do know what a troll is, right?

MrT.

 

[Mr.T]

"Stephen J. Rush" <sjrush@comcast.net> wrote in message
newstmdnfy_WvomsGbanZ2dnUVZ_rXinZ2d@comcast.com...

On Tue, 08 Apr 2008 16:51:34 +1000, Mr.T wrote:

Radium, proof that brain activity is not necessary to sustain life.

Actually, he's a clever little troll. His output looks reasonable on
first glance, enough so to draw a big response from people who don't
realize that he's just jacking off.

I know he is a troll (have said so many times)
But do please tell me how that is "clever"?
A pathological need for attention, regardless of ridicule, is more often
considered an illness.

MrT.

 

[isw]

In article <m2vmv3h3bfoe7ergavefi2qtjua7j481su@4ax.com>,
John Larkin <jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:

"
glucegen1@excite.com> wrote:

Hi:

Is it possible to have a purely-analog chip that stores audio without
using any form of sampling?

If an audio cassette does not require sampling then why would an analog
audio chip?



Thanks,

Radium

There used to be charge-transfer "bucket brigade" analog delay chips,
but they still sampled the audio, although they didn't quantize it.

Unless they could store fractions of electrons, then yes, they did.

Isaac

 

[isw]

In article <ftf6kt$ftu$1@serv1.iunet.it>, "LAB" <no@mail.com> wrote:

An analog Hard Disk?

But of course, that is *precisely* how the original Ampex video disk
slo-mo worked.

Isaac

 

[Mr.T]

"Michael R. Kesti" <michaelkesti@nospam.net> wrote in message
news:47FB7BA7.8CCC8C95@nospam.net...

Ah but he never used the word "persistant", nor mention size contraints.

You're absolutely correct. I was, however, willing to read those into the
intended question. Do you think I was incorrect.

Who can tell?
But actually it's incorrect to reply to a troll at all.

A "chip" can mean anything, including potato ones

That's cute, but I doubt that potato chips were intended to be included
as part of the question.

Analog delay lines do exist.

Yes, they do. Do you believe that they embody the storage that was
intended
in the question?

When talking about Radiums "questions" who can say?

The answer, it seems, is that physics just doesn't provide a mechanism
that can be used to provide direct storage of analog audio on solid
state
media.

Nor did Radium use the words "solid state media"

You are, again, absolutely correct. It seems that the OP's questions
were not asked as precisely as you would like. Perhaps you would do
well to ignore such questions rather than exposing your inability to
understand their rather obvious intended meaning.

I'm sorry, you seem to be under the misapprehension that I was being
serious, or even more deluded into thinking Radium is!
Hopefully you will know better next time

MrT.

 

[Mr.T]

"Gareth Magennis" <sound.service@btconnect.com> wrote in message
news:LcSdnXQDA6DiP2baRVnyigA@bt.com...

Imagine yourself sitting in your car at a red traffic light. Then imagine
thinking about youself sitting at this red traffic light. Then imagine
thinking about thinking about yourself at this red light. Then imagine
thinking about thinking about thinking about sitting at the red light.
And
so on.

Then you rudely awaken when the cars behind start honking because the light
has already turned green

MrT.

 

[isw]

In article <660lrpF2h6plmU1@mid.individual.net>,
"Richard Crowley" <rcrowley@xp7rt.net> wrote:

"LAB" wrote ...
An analog Hard Disk?

Hardly the "chip" that Radium was asking about.

But if you could get the head to move linearly
across the platter (vs. in concentric "cylinders"
as we use for data storage) then it would be the
magnetic equivalent of a spiral phonograph disk.

The old original Ampex HS-100 disc recorder
was the video equivalent of that concept. It was
the original gadget that allowed "instant replay"
for sports shows, etc.

Nearly. The Ampex unit didn't use a spiral track. It had "cylinders"
each of which held one frame of videeo. There were four magnetic heads
on arms that advanced in sequence -- 1, 2, 3, 4, 1, 2, 3, 4, ...

Since each track (frame) could be played repeatedly, or even in reverse,
slow-motion was easy.

It really was a brilliant piece of work, at the time.

Isaac

 

[Phil Allison]

"BobG"

I dont think you can see the difference between 0.1% and 3% distortion
in a sine wave. Scope aint good enough. But 'visible clipping' is
about 10%, and is surprisingly inaudible. Try it yourself. Get a scope
and a cd player and a smallish amp and a speaker. View amp output on
scope. Turn up till you see visible clipping. Compare sound with
clipping to sound without clipping.

** Might be almost true for small, SE tube amplifiers with zero negative
feedback.

Their very soft rounding to the wave crests is not easy so easy to notice
compared to typical hard peak clipping seen with all high feedback
amplifiers - particularly with 100 / 120 Hz modulation added from an
unregulated supply.

I can hear that when the THD meter says it is only 0.5 %.



..... Phil

 

[Mr.T]

"Michael R. Kesti" <michaelkesti@nospam.net> wrote in message
news:47FC5425.19E8E917@nospam.net...

"Mr.T" wrote:

snip

I'm sorry, you seem to be under the misapprehension that I was being
serious, or even more deluded into thinking Radium is!
Hopefully you will know better next time

You seem willing to put considerable effort into dissing this person.
Have you considered what this says about you?

Hey, I'm not dissing him, read what I wrote in the original context. Not to
mention you seem to have missed the smiley altogether.
Have a look at other peoples use of language if you want to see real venom
on Usenet.

MrT.

 

[Mr.T]

"Michael R. Kesti" <michaelkesti@nospam.net> wrote in message
news:47FC5425.19E8E917@nospam.net...

"Mr.T" wrote:

snip

I'm sorry, you seem to be under the misapprehension that I was being
serious, or even more deluded into thinking Radium is!
Hopefully you will know better next time

You seem willing to put considerable effort into dissing this person.
Have you considered what this says about you?

Hey, I'm not dissing him, read what I wrote in the original context. Not to
mention you seem to have missed the smiley altogether.
Have a look at other peoples use of language if you want to see real venom
on Usenet.

MrT.

 

[Phil Allison]

<timho_au@yahoo.com.au>

I bought some electrical sensitive equipment from overseas which runs
on 220v. I tried to run it on 240v in Australia and some of the
resistors have been burned. I know it will damage the equipment to run
on 240v but cannot find a transformer to convert from 240v to 220v.

Any advice on this?

** You story sounds phoney.

What sort of gear was this ??



....... Phil

 

[Jon Slaughter]

"BobG" <bobgardner@aol.com> wrote in message
news:8dc15a1c-3336-40ee-88c9-2483115bd0cc@8g2000hsu.googlegroups.com...

But the waveform that gets clipped and produces the 10% distortion
probably occurs less than 1% of the time... when the car crashes or
the tank cannon fires, etc, so you probably cant tell if the KaBoom!
is distorted or not... 99.9% of people have never heard a live tank
cannon at a range of less than several miles anyway.

At least not more than once

 

[Gareth Magennis]

"Mr.T" <MrT@home> wrote in message
news:47fc38f2$0$23658$afc38c87@news.optusnet.com.au...

"Gareth Magennis" <sound.service@btconnect.com> wrote in message
news:LcSdnXQDA6DiP2baRVnyigA@bt.com...
Imagine yourself sitting in your car at a red traffic light. Then
imagine
thinking about youself sitting at this red traffic light. Then imagine
thinking about thinking about yourself at this red light. Then imagine
thinking about thinking about thinking about sitting at the red light.
And
so on.

Then you rudely awaken when the cars behind start honking because the
light
has already turned green

MrT.

Not necessarily, as the brain may be so busy with its maximum 4 or 5 things
it is dealing with, that the honking is not noticed. This happens a lot -
when you have been deep in thought, or working something out in your head,
you may be able to recall that you weren't seeing anything at all. Untill
someone clicks their fingers in front of your face and the visual processing
starts up again.




Gareth.

 

[Gareth Magennis]

"Gareth Magennis" <sound.service@btconnect.com> wrote in message
news:YfednS2SZZhIFmHanZ2dnUVZ8uCdnZ2d@bt.com...

"Mr.T" <MrT@home> wrote in message
news:47fc38f2$0$23658$afc38c87@news.optusnet.com.au...

"Gareth Magennis" <sound.service@btconnect.com> wrote in message
news:LcSdnXQDA6DiP2baRVnyigA@bt.com...
Imagine yourself sitting in your car at a red traffic light. Then
imagine
thinking about youself sitting at this red traffic light. Then imagine
thinking about thinking about yourself at this red light. Then imagine
thinking about thinking about thinking about sitting at the red light.
And
so on.

Then you rudely awaken when the cars behind start honking because the
light
has already turned green

MrT.




Not necessarily, as the brain may be so busy with its maximum 4 or 5
things it is dealing with, that the honking is not noticed. This happens
a lot - when you have been deep in thought, or working something out in
your head, you may be able to recall that you weren't seeing anything at
all. Untill someone clicks their fingers in front of your face and the
visual processing starts up again.

Hey, that's probably why listening to music is so much better with your eyes
closed - not processing visual information means there is one more aspect of
the music you can concentrate on.



Gareth.