Energizer EN22 Non-Rechargeable Battery 500 Milli Amp-Hour 9 Volt Zinc-Manganese Dioxide

hello hectors and welcome back to my channel this gadget is a long time led flasher yes with this kind of battery this size this led will flash for about two years and the circuit is made in my version skeleton version and it's very primitive and i don't like it very much but in today's video i'm gonna make more professional here it is the circuit diagram of 1.5 volt led flasher and i will design the the pcb board on my pcb software on my computer and order the printed circuit boards that i designed it from pcb way by the way today video is sponsored by pcbray and thanks for that after designing the pcb board you will need to order from pcboa which is the best pcb manufacturer in the world just click quote now and upload your gerber files after uploading the gerber files from your pcb board here you can set a lot of selections like which type of pcb board do you want single layer or mul