https://www.bonanza.com/booths/Estevez
Electronics that you always wished !
I do not do Tutorials, the videos are just examples of operation, you have to know what you are looking to get an idea of what is shown here.
Where to buy:
https://www.ebay.com/usr/estevezz
http://www.bonanza.com/booths/Estevez
http://www.ebay.com/sch/jaime1969/m.html?_nkw=&_armrs=1&_ipg=&_from=
also ship outside USA, ask for quote