 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Thanks for your comments but:
*My components that I have bought new DO have shiny leads.
*I found it easier to use rectangle bending.
*You must have a different battery to the one I used to make the model.
James S.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Thanks, indeed the LED's need work, however, I did use a skysphere. The
circuit is a 555 standard astable or LED flasher. Pin 4 is reset which is
connected to +4.5V so it doesn't reset. The reason there are so many links
is beacuse of the limitation of bending the wires.
James S.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
JS nous apporta ses lumieres en ce 2007/09/29 18:51:
> Thanks for your comments but:
> *My components that I have bought new DO have shiny leads.
> *I found it easier to use rectangle bending.
> *You must have a different battery to the one I used to make the model.
>
> James S.
>
>
The one "B" battery I ever saw was several years ago, and it was an old dead
one, maybe they changed the model since. I can't find any now, and for the last
40 years, in my area.
--
Alain
-------------------------------------------------
Caught Asleep At Your Work Desk
Just in case your boss catches you asleep at your desk, be ready to blurt out
this excuse #1: I was working smarter - not harder.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Among other things, Alain saw fit to write:
> JS nous apporta ses lumieres en ce 2007/09/29 18:51:
>> *You must have a different battery to the one I used to make the model.
>>
> The one "B" battery I ever saw was several years ago, and it was an old
> dead one, maybe they changed the model since. I can't find any now, and
> for the last 40 years, in my area.
I don't know the English or standard name, but I think what James tried to
model was this type of battery:
http://www.maplin.co.uk/Module.aspx?C=SEO&U=SiteMapByDept&ModuleNo=31494
which, I agree, has round ends in the blades (and a sweet-metallic taste if
you touch it with your tongue).
--
light_source{9+9*x,1}camera{orthographic look_at(1-y)/4angle 30location
9/4-z*4}light_source{-9*z,1}union{box{.9-z.1+x clipped_by{plane{2+y-4*x
0}}}box{z-y-.1.1+z}box{-.1.1+x}box{.1z-.1}pigment{rgb<.8.2,1>}}//Jellby
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
This brings back memories :)
The number of times I had to wire up 555 timers for various circuits - it
must tbe the best known chip in the world :)
Thanks for a stroll down memory lane!
I think I'm going to ahve to go and model an Op-Amp circuit now. Maybe a
DtoA converter with an ammeter to show the output and LEDs on the inputs...
The possibilities :D
Thanks for the ideas!
"JS" <bos### [at] yahoo couk> wrote in message
news:web.46fc3228b72f4cd2b6429ee0@news.povray.org...
> As one who builds electronic circuits I've tried to create a virtual
> version
> of the famous 555 astable LED flasher. I had problems with the breadboard
> creating the holes; using a loop took too long and without wasn't much
> faster. So, I created the holes of one row in a block just once and then
> used that again and again to build the breadboard.
>
> Any comments please!
>
> James S.
>
--------------------------------------------------------------------------------
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Yeah, that's close. The one I have is made by Philips and is of the type
3R12 (4.5V). Strangely, the longest lead is neagative and the shortest is
positive, breaking with tradition used with most other components.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Simon" <povray@*NOSPAM*SOWare.co.uk> wrote:
> This brings back memories :)
>
> The number of times I had to wire up 555 timers for various circuits - it
> must tbe the best known chip in the world :)
>
> Thanks for a stroll down memory lane!
>
> I think I'm going to ahve to go and model an Op-Amp circuit now. Maybe a
> DtoA converter with an ammeter to show the output and LEDs on the inputs...
> The possibilities :D
>
> Thanks for the ideas!
>
I hope that you are not going to go for the easy option and use a 741. How
about using a 709? I know that you would need more external components but
that is where the fun lies :)
Stephen
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"JS" <bos### [at] yahoocouk> wrote in message
news:web.46fc4425260418cdb6429ee0@news.povray.org...
> Sorry, no picture, I'll try again...
>
Lots of fun things you can do with a 555 (or 556)
See
http://www.kingcharlesschool.co.uk/admin/files/Public/Departments/5/Downloads/555TIMER.pdf
Some years ago I built a 555-based metronome.
The biggest problem was making a properly calibrated dial for a rotary pot.
DLM
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Whoa, cool asynchronous multivibrator!
My project boards all have tapered square holes though.
---
Bryan Valencia
- I'd rather live with false hope than with false despair.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
> I hope that you are not going to go for the easy option and use a 741. How
> about using a 709? I know that you would need more external components but
> that is where the fun lies :)
>
> Stephen
>
Sorry for the delay in replying - work got in the way of fun. I was
originally thinking of a 741 but you're right a 709 would be more
challenging.
I'll post it when done (Give me ~ 6 months :D)
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
