Linux DIY Electronics

Anyone interested in electronics?

The global Internet is chock full of avocational electronic sites
with plenty of amazing projects by both amateurs and professional
alike.

Of course, GNU/Linux has the all the tools for pro-grade electronic
work.  For example, check out ngspice:

https://ngspice.sourceforge.io/

Ngspice is superbly accurate, and will rival any commercial ($$$$)
software.

Consider the following coupled oscillator circuit:

https://i.postimg.cc/RCY0Zgnf/cpl-osc.png

By the way, this image was made with GNU/Linux xcircuit:

http://opencircuitdesign.com/xcircuit/

Ngspice can simulate the behavior of this circuit flawlessly,
and will probably beat any commercial ($$$$) software.  Here
is the ngspice script:

Coupled Oscillators
R1 1 0 0.1
L1 1 2 10
C1 2 0 0.0001
CK 2 3 0.00001
C2 3 0 0.00011
L2 3 4 10.2
R2 4 0 0.1
*
* The .IC line allows an initial voltage to be set on the inductor
* to establish an initial dI/dt through loop 1
* This cannot be done by specifying an initial condition on the inductor itself
* Now the simulation gives the same result as the exact differential eqn
*
.IC V(2)=-1
.tran 0.001 5 0 0.00001 UIC
.end

I have compared the output of ngspice with the exact solution
of the differential equation system and to 16-digit double precision
there is ABSOLUTELY NO FUCKING DIFFERENCE.

A lot of avocational electronic enthusiasts, both amateur and professional,
do use GNU/Linux, but to those that don't here is the message:

Fuck that goddamned commercial ($$$$) crap.  Use GNU/Linux and
shut the fuck up.

Ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha!

Xavier Dominica

Master of Science in Electrical Engineering


--
Systemd: solving all the problems that you never knew you had.