It's (CAT 00897-AA1) from Analogue Bubblebath 3 (1993) by AFX ( Aphex Twin)
You put them in series to get more voltage, and in parallel to get more current (amperage).
Build a trailer?
You do not build a series circuit in your home. The only series circuits are the circuits that go through circuit breakers, light switches, and relays. Electrical and electronic devices use internal series circuits but those are the only ones people build. No one builds series circuits for house wiring. Electrical outlets are connected with parallel wiring.
Because no one know about electronic computer
An electronic circuit is one or more loops around which electrical current can flow as it passes through one or more electronic components.An electronic device is any device designed to perform a specific useful function that is implemented largely using electronic circuits.Note: it is possible to design and build an electronic circuit that does nothing useful, it is not possible to design and build an electronic device that does nothing useful (the very reason for designing and building electronic devices is to create a thing having a useful function).
i could not tell you
Assuming you are meaning some kind of a travel trailer, the laws would depend on the locality. In many states in the USA, it is legal to build one's own utility trailer, and presumably travel trailers. Licensing requirements would depend on the weight of the trailer, or the gross weight of the trailer and cargo.
Homebuilt teardrop trailers are cheap, fun, and easy to build. Teardrop trailer build it yourself kits can be bought through several online retailers including Mini Tears and RV Greening.
You could add on to the trailer building an extra room or maybe you could add to the trailer building a screened in porch which would be nice. I think that would be a good idea.
modern warfare 2 infamy trailer, COD 4
Buy a double wide trailer.
Don't buy it if you don't know how to use it!