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SolderingIronDriver by Bogdan Kecman
#77
sta je fora, ja kad pravim pcb, ja prvo narucim delove, sta ima jeftino u tom trenutku i onda modifikujem semu takodje ako ima potreba da uglavim druge delove, i tek kad mi sve stigne napravim pcb .. tako da je moj pcb uvek u odnosu na sta imam u fioci + sta ima u kometu u tom trenutku ..

sa druge strane filip kad je pravio taj pcb on je stavljao delove koje Ian ima po fiokama sto je dobio samplove od ovih i onih + neki open library od seeed-a (posto ian sve sto radi pravi se u seeed-u) i to je mnogo drugacije ...

npr ja od general purpose trandzi uzmem paket od 100x 2n3906 + 100x 2n3904; pnp, npn 40V 200mA, vise nego dovoljno za general purpose i oni su PTH i onda kad mi treba general purpose ja uglavnom turim te pth trandze jer njih uvek imam .. mislim da imam po recimo 300kom od svakih sa druge strane imam mozda 50 smd 3904 i nijedan 3906 te smd guram samo ako moram ... naravno ako je neka specificna stvar u pitanju i ne ide genpup trandza onda uzmem smd varijantu ... sa druge strane imam 0805 i 1206 otpornike svih zivih vrednosti 10% tol. po 200-300kom tako da ako ide 10% otpornik ide smd, opet za 1% zavisi, imam jedno 30tak vrednost u pth verziji po 100-200kom pa onda idu oni, ako nemam onda idu smd verzije .. i tako dalje i tako dalje ... sad npr imam tih kineskih trimera u liniji pa kad crtam trimere turam njih, kad ih potrosim ko zna sta cu i gde kupiti pa ce ici sigurno neki drugi ... takodje imam jedno 500kom 10k (ili 1k ne secam se) keramickih iskrinih trimera onih minijaturnih polozenih pa gde mi ne treba multiturn ja guram te gde god moze, da ih potrosim Big Grin

e sad, bedak je kad neko napravi pcb sa delovima "sada dostupnim" + delovima "iz fioke" koji su tu od pre hrista i onda ti dobijes da pravis to 10 godina kasnije kada tih delova nigde nema ni za lek .. spomenuh vec 18f2550, kada sam ja ovo pravio to je bio najjeftiniji pic sa usb-om, danas to je relikvija koju niko normalan u novi projekat nece staviti ..
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Messages In This Thread
SolderingIronDriver by Bogdan Kecman - by TDA - 04-02-2015, 09:18 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 04-02-2015, 10:19 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 04-03-2015, 07:44 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 04-04-2015, 03:04 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 04-04-2015, 03:17 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 04-04-2015, 03:24 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 04-04-2015, 03:31 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 04-04-2015, 03:50 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 04-04-2015, 04:29 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 04-04-2015, 05:39 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 04-04-2015, 07:56 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 04-04-2015, 08:11 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 04-04-2015, 09:13 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 04-05-2015, 07:02 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 05-27-2015, 03:21 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 05-29-2015, 03:19 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 05-29-2015, 03:59 PM
RE: SolderingIronDriver by Bogdan Kecman - by bogdan.kecman - 05-29-2015, 04:32 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 10-02-2015, 09:21 AM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 05-06-2018, 11:32 AM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 05-07-2018, 03:36 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 05-14-2018, 10:53 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 05-15-2018, 08:21 AM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 05-23-2018, 07:32 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 05-23-2018, 08:58 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 07-27-2018, 07:01 PM
RE: SolderingIronDriver by Bogdan Kecman - by TDA - 07-27-2018, 10:32 PM

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