[Ktechlab-devel] svn problem && new user

[EdorFaus]

On Sunday 30 July 2006 00:36, Alan Grimes wrote:
> EdorFaus wrote:
> > Hi,
> >
> > I'm new to KTechLab, and after playing around with it a bit (installed it
> > with apt on Debian/sid) wanted to have a look at the source and maybe
> > implement some small things, and for that matter see if the svn version
> > had fixed some issues I had with it (saw in the list archive that at
> > least some of it is being worked on, like floating voltages).
>
> Sorry, that was just me making noise. I wasn't successful in adding that
> functionality. I think the best approach is to rewrite ktechlab as a
> front-end for gnucap (or any other generic SPICE implementation) and
> possibly other tools.

Ah, ok. Yes, making it a frontend for an existing, known-good and maintained 
simulation tool might be best. Can't say I really know how to do this though.

>
> My only success so far is my 3-phase power simulator. -- A demo of a
> 3-phase power supply with an implementation of the phase-angle enhancement.

That's nice. Success is good.

>
> > When I tried to check it out though (https://svn.ktechlab.org/trunk), I
> > can't connect to the svn server - I just get connection refused.
>
> Unfortunately, the founders of this project don't seem to have enough
> time (or possibly the inclination) to continue to work on it. Still, I
> have high praise for them for their innovations in usability which are
> far beyond all the other tools I've managed to get running on my badly
> broken linux box.

Indeed, it's a highly usable program, especially compared to some others. I 
can understand the lack of time/inclination, I have a tendency to go from one 
project to the next myself.

Right now though, I would like to do some work on this one... But I think 
there's little point in working on outdated code (I'm assuming some things 
have changed in svn since 0.3), so wanted the latest code. Which I couldn't 
get from svn. Would you happen to have a copy of the latest code, that you 
could pack up and send me?

>
> > I don't know if this is a problem with the server, outdated docs on the
> > site, or something I did - can anyone help me out here?
>
> I'll try, but I've been only an occasional user of ktechlab reciently.
> I've been trying to develop a surround sound processor/DAC with a vacumn
> tube output buffer. Unfortunately, the simulator stops working if I try
> to switch on more than two channels at once. =(

Hmm, sounds interesting. And unfortunate about the simulator.

Makes me think of something that happened to me with it. I had made some 
subcircuits and stuff, using mostly logic and transistors. I had one that 
takes a set of inputs, plus a voltage source, and gives a set of outputs. It 
seemed to work just fine, except some oddity about amps, so I added an 
ampmeter between the voltage source and the subcircuit. The circuit went 
dead. Disconnect the ampmeter(not just short it), and it comes back on. I 
found that it also came back on if I added a 1-ohm resistor in series with 
the ampmeter. Strange stuff.