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Michael James | 1 Mar 2010 05:51

Re: [clug] bittorrent

On 16/02/2010, at 9:26 PM, freds72@... wrote:
> I have been looking for a bittorrent program
> which can be easily set to download at a particular time.
> i.e. start at 2am and finish at 6am.

Given a low power Linux server running 24/7,
 what I want is a server based torrent client,
 with a web interface to set up, check on, and kill jobs.

Then I can turn off the power-hungry desktop,
 and leave it to do the downloading at the best time.

michaelj

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Hal Ashburner | 1 Mar 2010 05:56
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Re: [clug] bittorrent

On 01/03/10 15:51, Michael James wrote:
> On 16/02/2010, at 9:26 PM, freds72@... wrote:
>    
>> I have been looking for a bittorrent program
>> which can be easily set to download at a particular time.
>> i.e. start at 2am and finish at 6am.
>>      
> Given a low power Linux server running 24/7,
>   what I want is a server based torrent client,
>   with a web interface to set up, check on, and kill jobs.
>
> Then I can turn off the power-hungry desktop,
>   and leave it to do the downloading at the best time.
>    
http://yodctcs.googlepages.com/
is one
torrential is another
there are a bunch of posts on WRT & wl500 linux router forums by people 
who've done this, written their own etc. So you should find what you want.
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Steve Walsh | 1 Mar 2010 06:14
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Re: [clug] bittorrent

Michael James wrote:
> Given a low power Linux server running 24/7,
>  what I want is a server based torrent client,
>  with a web interface to set up, check on, and kill jobs.
>
> Then I can turn off the power-hungry desktop,
>  and leave it to do the downloading at the best time.
>
>   
Sounds like you want cucumber-torrent

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Michael James | 1 Mar 2010 07:38

Re: [clug] Who in Canberra replaces blown capacitors on motherboards?


On 23/02/2010, at 9:23 AM, Ben Nizette wrote:

>> Is there anyone in Canberra who can get out a soldering iron
>> and replace the blown capacitors with more reliable ones?
> 

<threadjacking=on>

I managed to crash my son's radio control glider (on my first flight yet  8^()
 and put major creases in the electro caps on the motor controller.
The tops are folded in to a right angle as if hit with a steel ruler.
And it still works!  How bad can electros be, and hold charge?

I'd replace them but apart from capacitance (Farads) and Volts
 I'm not sure of the ratings of electros (to deliver current etc.)

</threadjacking>

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Ben Nizette | 1 Mar 2010 07:58

Re: [clug] Who in Canberra replaces blown capacitors on motherboards?


On 01/03/2010, at 5:38 PM, Michael James wrote:

> 
> On 23/02/2010, at 9:23 AM, Ben Nizette wrote:
> 
>>> Is there anyone in Canberra who can get out a soldering iron
>>> and replace the blown capacitors with more reliable ones?
>> 
> 
> <threadjacking=on>
> 
> I managed to crash my son's radio control glider (on my first flight yet  8^()
> and put major creases in the electro caps on the motor controller.
> The tops are folded in to a right angle as if hit with a steel ruler.

Ahaha, nice work

> And it still works!  How bad can electros be, and hold charge?

Criminy, never seen ones that bad hold a charge!  If you stuck a 'scope on the power lines I reckon you'd see a
hell of a ripple up.

> 
> I'd replace them but apart from capacitance (Farads) and Volts
> I'm not sure of the ratings of electros (to deliver current etc.)

The only other real value of interest to the regular human being is ESR - Equivalent Series Resistance. 
There's no down-side to getting lower ESR ones than rated except possible pocket damage - ESR goes down
price goes up.  If you can satisfy the ratings out of Jaycar's "Low ESR" range I'd just go for those.
(Continue reading)

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Keith Goggin | 1 Mar 2010 04:26

[clug] SPLAT Signal Propagation, Loss, And Terrain analysis tool

Hi List,

I've installed splat V1.3.0 and found it quite helpful when trying to 
maximise my nextg signal in a difficult rural location.

Can someone tell me if it is possible to plot transmitter signal 
coverage on GeoScience Australia 1:250,000 maps instead of the digital 
elevation topography models. If so how?

Thanks
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Owen | 1 Mar 2010 08:33
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Re: [clug] Who in Canberra replaces blown capacitors on motherboards?


>
> On 23/02/2010, at 9:23 AM, Ben Nizette wrote:
>
>>> Is there anyone in Canberra who can get out a soldering iron
>>> and replace the blown capacitors with more reliable ones?

>
> I managed to crash my son's radio control glider (on my first flight
> yet  8^()
>  and put major creases in the electro caps on the motor controller.
> The tops are folded in to a right angle as if hit with a steel ruler.
> And it still works!  How bad can electros be, and hold charge?
>
> I'd replace them but apart from capacitance (Farads) and Volts
>  I'm not sure of the ratings of electros (to deliver current etc.)

The electros *should* have their rating on the casing (farads and
working Voltage).

However I am not sure that you have bent electro capacitors, but
rather some poly type caps. Got a photo?

Which one of these two are closest to your problem?
http://members.pcug.org.au/~rcook/caps.png

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Mike Carden | 1 Mar 2010 09:02
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Re: [clug] Who in Canberra replaces blown capacitors on motherboards?

On Mon, Mar 1, 2010 at 5:38 PM, Michael James <michael <at> james.st> wrote:
> And it still works!

So if it ain't broke - don't fix it.

> How bad can electros be, and hold charge?

Internally an electrolytic cap is typically a 'rolled-up' arrangement
of flat conductors separated by an electrolyte. They sproing out
nicely when they go boom. If you crease the outer can hard enough to
short across the rolled up electrodes, you'll have no cap at all. If
you just squash the guts without shorting, you'll likely reduce the
capacitance. Since electros have something like a +80% / -20%
tolerance for value anyway, it's easy not to notice big changes.

> I'd replace them but apart from capacitance (Farads) and Volts
>  I'm not sure of the ratings of electros (to deliver current etc.)

I'll guess the capacitance is in microfarads in this case and the only
other thing you need worry about is the voltage rating which you
shouldn't dip under but the on board batteries probably determine what
that needs to be. Current ratings on capacitors really only matter
when you're talking massive multi-farad things powering your
electromagnetic cannon or the like.

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Jeff Stiff | 1 Mar 2010 09:07
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Re: [clug] Thankyou...

On 26 February 2010 17:57, Ian Bardsley <ifb777@...> wrote:

> Hugh Blemings wrote:
>
>> Hiya,
>>
>> Thankyou to everyone who attended last night and gave Rachael, the
>> makerbot and I such a warm reception! :)
>>
>> Mike Carden kindly took a few photos
>>
>>  http://pics.blemings.org/gallery/clug-201002
>>
>> And have put a copy of the presentation up here
>>
>>  http://blemings.org/hugh/papers/clug-20100225-rkb.pdf
>>
>> Cheers,
>> Hugh
>>
>>
> G'Day
>
> Methinks 'tis those of us who enjoyed your presentation and demonstration
> yesterday evening that should be thanking you and Rachel for taking the time
> to show us the fruits of your labour. A most enlightening and enjoyable
> hour.
>
> Thanks again
>
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Carlo Hamalainen | 1 Mar 2010 12:27
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Re: [clug] bittorrent

On Mon, Mar 1, 2010 at 2:51 PM, Michael James <michael <at> james.st> wrote:
> Given a low power Linux server running 24/7,
>  what I want is a server based torrent client,
>  with a web interface to set up, check on, and kill jobs.

I run rtorrent on my SheevaPlug in a screen session, which does
everything you want except a remote web interface. I'm quite happy
with my SheevaPlug, 1Tb USB hard drive, rtorrent, and sshfs :)

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