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Ask Sir Tony - an Electronics/Electrical Q & A thread

  • Question mga expert,

    Pwede ba ganitong setup:
    Outlet > Extension Cord > Avr > PC.

    Consistent naman ung kuryente sa bahay.

    Yung extension cord rated 2000w 15a 250v (Omni) 4meters
    -may 3 plug slot
    Yung pc ko 620w psu
    Ang ikakabit ko sa avr monitor and pc

    Since tatlo ung plug ng extension, balak ko sa isang plug magkabit g extension na may power switch (5 slot plug). Dun ko kakabit speaker, router and modem.

    Bale,
    Outlet > Extension > avr (cpu and monitor) and another extension (Router, modem and speaker)

    Safe kaya yan? TIA.

    -- edited by lowtuneduser on Jun 11 2016, 04:14 PM
  • Guys ano kya maganda,reliable na Soldering iron/gun?..ano po ba gamit nyo ?.pa suggest nmn po..TY guys
  • Post deleted #11694776
  • Hi mga sirs need expert advice yung automatic washing machine po nmin umusok habang nag drain yung tubig hndi kasi nalagyan ng patungan kaya may nabasa sa loob sabi ng brother ko grounded po daw. anu ang mgandang gawin para matanggal ang grounded nya at di na umusok pag ginamit? thanks
  • Good day sa lahat.

    My FSP UPS (EP-1000). Bale, hindi na nag cha-charge ung battery nya. Binuksan ko ung battery and almost dried na ung mga cells nya so ang ginawa ko, ni-refill ko ng distilled water, binalik ko sa ups para dun mag charge and iniwan ko cia ng mga 8hrs. Nung sinubukan ko, hindi parin cia nag charge. Tinesting ko cia gamit ung tv and every time na sinusubukan ko ung back up battery nya, nag ooff parin ung ups.

    Tanong ko is, hindi ba mag sisilbing charger din ung mismong UPS?

    Pag nag tester ako, anong voltage ang maeexpect ko kung hindi na cia nag cha-charge or pag deads na ung batt nya?

    Thanks po sa lahat.
  • ^ A fully-charged lead-acid battery usually has 2.1 volts per cell. 12v batteries are made of six cells, so that translates to 12.6v.
    Full discharge voltage is 1.75 (loaded) 1.95v (open circuit) per cell, so that's 10.5v and 11.7v respectively.

    -- edited by awakeruze on Jun 23 2016, 12:48 PM
  • @awakeruze

    Thanks sir. That's good to know. I guess my batteries are dead then. Upon checking the voltage, it goes up to 10v only. Need to replace it already.
  • Sirs question po. Ilang watts ng transformer ang kailangan para sa 120hz na charger. Ang input is 1.5 amp tapos ang output is 4.0 amp. Charger po eto para sa batterya ng cordless drill.
  • Maybe you mean 120v charger? 120 volts x 1.5 amps = 180 watts, though you'd be better off if there's a generous amount of headroom, so... perhaps 300 watts.
  • 120V po pala. 150 watts ung nabili ko na transformer. sasabog po kaya? or hindi lang magiging fast charger?

    <click here for link>

    -- edited by qbg226 on Jun 25 2016, 02:31 AM
  • The transformer will heat up more that it should, which might melt the wire's insulation, which will cause an internal electrical short.

    No, don't try it.
  • qbg226
    para san ?
  • Thanks awakeruze.

    Silentorange, para sa nabili kong dewalt 20volt na cordless drill. Ung charger nya kasi 110v
  • im not sure but 120V pang ibang bansa lang yan 220V kasi tayo
  • Yung guitar amp ko 110v lang kaso na isaksak sa 220v, madali lang ba ipaayos yon? mura lang kaya? thanks
  • jahy420 Send Message View User Items on 26 Jun 16 @ 10:36 AM #
    Yung guitar amp ko 110v lang kaso na isaksak sa 220v, madali lang ba ipaayos yon? mura lang kaya? thanks


    check mo muna baka meron safety fuse.
    kung meron, sigurado busted ang fuse nyan, palitan mo ng bago. if you're lucky,, fuse lang ang bumigay.
  • Sino na po sa inyo nakagamit ng cdrking digital multitester? Reliable b? Accurate ba?

    May japan analog naman ako pero need ko eksaktong figure sa decimal places lalo dahil nagcha charge ako ng batt ng ebike ko...minomonitor ko.kasi
  • ^
    There's a CD-R King thread here in tipidpc. I remember someone posting that the multi-tester isn't as accurate as professional grade ones. Another one said his CD-R king tester stopped working without any warning. Replacing the battery didn't help.

    Personally, I use a tester made by Alexan, which costs just shy of 1k pesos.
  • ^
    sir accurate naman ba yung sa alexan?
  • mga sirs, ask ko lang. meron kasi akong karavision. yung remote, gumagana pa naman. i tried testing the remote IR LED by pointing it on a camera and it still lights up. ang problema, ayaw mag respond ng karavision ko sa remote. kailangan ko na siyang gamitin at wala akong time para dalhin sa magaayos dahil gabi na din ako nakakauwi. ang tanon ko lang. ok lang bang i-wire yung terminals ng IR LED ng remote control sa terminals ng IR receiver ng karavision? will it work? salamat po!

    -- edited by fat_joe on Jun 28 2016, 05:42 PM
  • Mga sir if i may ask kasi yung laptop Toshiba Satellite A105-S4284,
    mano mano ko pinalitan ng thermal patse dati umandar naman ng maayos pero after few months pahirapan na paganahin.
    ngaun naman kahit OK ang dalawang charger pa pareho hindi nag OON yung laptop.
    umiilaw lang ng mili seconds yung mga ilaw like numkeys sa keyboard, lcd no display..
    yan ay with battery at with out same result. hindi na nag oon.

    ano tingin ninyo problema? loose turnilyo lang? medyo maeffort kalasin yung laptop kaya siguraduhin ko muna na loose lang para di sayang. or me need pa ba hinangin sa loob baka me lose wire sa power line?
    may naka encounter na ba sainyo nito mga sir?

    Salamat tpc. salamat members.
  • May tanong po..may nabibili sa olx na batt charger 12v 2.5a to 20a. Around 300php...automatic po ba yun? Ibig ko sabihin pag ang china charge ko na 12v ay 12a lang eh 12a lang din ba ibabato nya na amperahe? Then if 20a ang hina charge ko 20a din ba binabato nya? Therefore assuming na pareho sila may naritirang 50% na charge, edi parehong duration ng oras sila matatapos...ganun ba??
  • Isa pa ping tanong? Sa primary winding ng transformer 110v, ano po mangyauari kung isa o dalawang hibla ay na damage o naputol? Makakadaloy pa ba ang 110v na primary papunta sa 24v na secondary? Hindi kaya puputok pag sinaksak ko sa 110v?
  • Sir pano linisin ung autoservo na avr sir pwde ba e pa blower un para matangal buhok ng pusa
  • madali lang po ba mag install ng wiring ng telepono? bahay lng po? kaya ba kahit girl lng gagawa? help naman po? idea lng po or kung may pix po how? mas maganda. thanks po

    -- edited by chuchai on Jul 21 2016, 01:34 PM
  • Tanong ko lag about analog multitester....sanwa japan original...

    Sa dc 48v

    Range 50 - 52v
    Range 250 - 50v
    Anong mas tama? Kahot sa 12v batt sla,as mababa ng mga 2v ang reading sa range 250 kesa sa 50...