marcelino
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« on: December 11, 2009, 10:48:24 PM » |
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 TIA.  |
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"Don't take life seriously. After all, no one has ever come out of it alive. -Bugs Bunny"
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The Philippine Electronics and Technology Forum
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« on: December 11, 2009, 10:48:24 PM » |
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tiktak
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« Reply #1 on: December 11, 2009, 10:51:12 PM » |
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mylar din po ata yan, may mga nakikita akong ganyan dati sa mga tone control  |
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Bakit andaming hindi marunong gumamit ng search?  |
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insomartin
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« Reply #2 on: December 11, 2009, 10:54:08 PM » |
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high voltage din yan. nakikita ko yan sa busted nag fl starters. naka parallel sa starter.
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Google
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« Reply #3 on: December 11, 2009, 11:01:29 PM » |
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sana tunay na ginto na ang nilagay duun sa cover  |
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“If you limit your choices only to what seems possible or reasonable, you disconnect yourself from what you truly want, and all that is left is compromise.”
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alyas
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« Reply #4 on: December 11, 2009, 11:05:19 PM » |
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parang paper capacitor
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marcelino
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« Reply #5 on: December 11, 2009, 11:29:40 PM » |
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ah... mylar lang pala yan... akala ko ibang klase na! heheh pero ang galing, di nagdidrift ang frequency response... ilang beses ko na minesure, stable naman.... may 'J', so meaning 5% tolerance yan, di ba? Thanks guys! Love you!  parang paper capacitor
hala... hehhe |
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"Don't take life seriously. After all, no one has ever come out of it alive. -Bugs Bunny"
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Positron E+
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You have No GOD?, You have No Peace of mind.
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« Reply #6 on: December 11, 2009, 11:40:17 PM » |
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oo mylar yan, ganyan yung nakalagay sa tabi ng vertical ic ng tv ko na nasunog pinalitan ko ng mylar ok na
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rdpzycho
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« Reply #7 on: December 12, 2009, 12:30:05 AM » |
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kung tama tingin ko (merong parang clear plastic tubing), polystyrene film capacitors 'yang mga 'yan sis. typically low distortion, low inductance capacitor kaya madalas makita sa equalizers and tuning circuits. baka mas alam ni sis danny.
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"Keep on starting, and finishing will take care of itself."
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insomartin
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« Reply #8 on: December 12, 2009, 12:33:24 AM » |
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saan nyo na scrounge yan sir marce? pansin kong may solder na.
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jiggins20
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« Reply #9 on: December 12, 2009, 12:36:26 AM » |
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parang metalized paper capacitor po iyan..
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Audio amp addict
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rdpzycho
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« Reply #10 on: December 12, 2009, 12:41:10 AM » |
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  polystyrene caps lang ang nakikita kong merong parang plastic tubing, AFAIR, around 25 PHP ang isa nito. karamihan ng nagagamit kong paper caps, enclosed sa hard plastic na rectangular. then polypropylene caps (PPE) naman mukhang mylar. 'yung latter 2 lang talaga ang nagagamit ko dati sa SMPS. |
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"Keep on starting, and finishing will take care of itself."
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marcelino
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« Reply #11 on: December 12, 2009, 12:43:23 AM » |
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sa betamax!!! heheh actually, kailangan ko 100nF. pero sa tingin ko pwede na... gagamitin ko sa frequency output conditioning circuit ng resistive sensors. eto nga kakatapos ko lang mag-experiment. ok naman... stable at di nagbabago yung frequency output. yun nga lang, medyo mataas yung higher frequency limit. eto yung circuit na pinagkakaabalahan ko:  yang 100nF ang nireplace ko nyan. yung original na 50-10kHz, nabago na. binabaan ko yung 100k resistor para more than 100Hz ang lower limit at nang nilagyan ko ng 47nF as replacement sa 100nF, umabot na ng ~25kHz! taas na... sana kayanin ng CCP modules... nakalimutan ko kasi sa e-gizmo, kakabili ko lang... heheh di ba ang polysterene ay maganda ang tolerance? |
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"Don't take life seriously. After all, no one has ever come out of it alive. -Bugs Bunny"
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rdpzycho
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« Reply #12 on: December 12, 2009, 12:45:38 AM » |
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depende pa rin sa manufacturer sis. low distortion ang main feature ng polystyrene, freq in almost equal frequency out. sa iba kasi magkakaroon ng konting harmonics.
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"Keep on starting, and finishing will take care of itself."
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marcelino
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« Reply #13 on: December 12, 2009, 12:54:32 AM » |
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depende pa rin sa manufacturer sis. low distortion ang main feature ng polystyrene, freq in almost equal frequency out. sa iba kasi magkakaroon ng konting harmonics.
ayun dun sa text nung circuit na kinokopya ko, dapat daw film yung capacitor. Ano ba ang medyo madaling hanapin na caps? ... yung accurate at di nagdidrift. dito kasi sa probinsya, ceramic at mylar lang ang available. nakainis!!! |
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"Don't take life seriously. After all, no one has ever come out of it alive. -Bugs Bunny"
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danny
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« Reply #14 on: December 12, 2009, 01:08:24 AM » |
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kung tama tingin ko (merong parang clear plastic tubing), polystyrene film capacitors 'yang mga 'yan sis. typically low distortion, low inductance capacitor kaya madalas makita sa equalizers and tuning circuits. baka mas alam ni sis danny.
tama si rdp polysterene yung mga caps na iyan common na ginagamit iyan sa mga tuning circuits. sa tone controls at mga equalizer nga makikita madalas ang mga ito. minsan iba iba lang ang appearance at tubing na ginagamit kaya nakakalito minsan. |
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danny
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marcelino
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« Reply #15 on: December 12, 2009, 01:32:26 AM » |
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Thanks for confirming sis... sana makakuha ako nito nung 100nF. |
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"Don't take life seriously. After all, no one has ever come out of it alive. -Bugs Bunny"
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rdpzycho
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« Reply #16 on: December 12, 2009, 02:26:02 AM » |
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medyo mahirap din hanapin dito 'yan, 'di common sa ibang store except dun sa audio talaga ang linya. nung sinubukan kong bumili niyan para sa equalizer project namin dati, 25 ang isa compared sa wala pang sampung pisong mylar. hehehe.
meron pang ibang film caps sis like mylar, polypropylene, and polycarbonate. quality lang talaga ng dielectric ang differences nila. 'yung polypropylene, mostly used sa high power applications na AC dahil mababa ang losses niya, 'di siya gaanong nag-iinit (pwedeng i-parallel sa AC line, safely).
meron pang metalized types. hehehe. mas maliliit 'to kaysa sa non-metalized.
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"Keep on starting, and finishing will take care of itself."
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danny
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« Reply #17 on: December 12, 2009, 03:14:13 AM » |
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na try nyo ba sa rs o kaya sa farnell baka mura?  minsan kasi pag mahirap kunin din saka pa mahal try nyo ito http://www.wima.de/de_index.phpgood in filtering din gamit ko din ito sa mga hig hend designs ko na power amp at preamps |
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danny
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tony
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leach amp afficionado
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« Reply #18 on: December 12, 2009, 05:07:06 AM » |
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hi, eto ang pinagsimulan ng lahat, [urlhttp://www.reliablecapacitors.com/pickcap.htm[/url] eto pa karugtong: http://waltjung.org/PDFs/Picking_Capacitors_2.pdfsana makatulong sa inyong kaliwanagan.....enjoy.... |
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in electronics, as in everyday life, there is always a reason for doing things...and if you can not explain why you want to do what you are about to do, better stop or else magic smoke will come out, safety first is the best policy here.....kuha mo?
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marcelino
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« Reply #19 on: December 12, 2009, 12:35:00 PM » |
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salamat sa inyong mga tugon... marami akong natutunan. matagal ko nang gustong alamin ang mga ibat-ibang uri ng capacitors ngunit di ko nagagawa kasi wala naman akong pangangailangan. Ngayong kailangan ko na, inaaral ko na. Mamaya, subukan ko uling maglibot sa mga tindahan at nang malaman ang mga meron sila. |
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"Don't take life seriously. After all, no one has ever come out of it alive. -Bugs Bunny"
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The Philippine Electronics and Technology Forum
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