Author Topic: SAKURA AV-200T Tube Amp (Read 357097 times)

CMac · « **Reply #600 on:** Mar 16, 2012 at 09:56 AM »

Quote from: TonyT on Feb 04, 2012 at 09:15 AM

this is not strictly a tube amp, but rather a "tubed" amp.....the speakers are driven by 25watter solid state amp, jojoD's baby G has more power....

do not pay too much attention on the tubes, eye candy lang ang mga yan.....

tony, i'm intrigued as to what the popular dared mp5 uses the tubes for. pardon the ot.

markcrenz · « **Reply #601 on:** Mar 16, 2012 at 10:29 AM »

Quote from: RamJac on Mar 16, 2012 at 09:56 AM

tony, i'm intrigued as to what the popular dared mp5 uses the tubes for. pardon the ot.

+1

JojoD818 · « **Reply #602 on:** Mar 16, 2012 at 10:32 AM »

not tony but the MP5 uses the tubes as cathode follower. personally verified this.

markcrenz · « **Reply #603 on:** Mar 16, 2012 at 10:36 AM »

so does that mean it's not a tube amp in the true sense?

edit:
read somewhere:
DARED MP-5: The most popular DARED amp.. Hybrid design
A stylish tube hybrid amp
Tube pre with MOSFET output with per channel

CMac · « **Reply #604 on:** Mar 16, 2012 at 10:38 AM »

Quote from: JojoD818 on Mar 16, 2012 at 10:32 AM

not tony but the MP5 uses the tubes as cathode follower. personally verified this.

Quote from: TonyT on Feb 04, 2012 at 11:05 AM

yes, cathode follower yung 6N2 tube, supply naman ng 4558 ic yung 2 5z4 tubes...

given na naman na tony=jojo

cathode follower is like a tube buffer right?
so parang same lang config nila ng sakura?

docrob · « **Reply #605 on:** Mar 16, 2012 at 11:29 AM »

Quote from: RamJac on Mar 16, 2012 at 10:38 AM

given na naman na tony=jojo
cathode follower is like a tube buffer right?
so parang same lang config nila ng sakura?

+ 1, so same sila na Cathode Follower

wow, this is interesting

JojoD818 · « **Reply #606 on:** Mar 16, 2012 at 12:08 PM »

Quote from: RamJac on Mar 16, 2012 at 10:38 AM

given na naman na tony=jojo

naku hindi sir, malapit na mag super sayan level up si tony eh...

Quote

cathode follower is like a tube buffer right?
so parang same lang config nila ng sakura?

yes and yes sir.

which is also the same (more or less) as Joe Rasmussen's hybrid gainclone.

JojoD818 · « **Reply #607 on:** Mar 16, 2012 at 12:12 PM »

Quote from: markcrenz on Mar 16, 2012 at 10:36 AM

so does that mean it's not a tube amp in the true sense?

it never was.

CMac · « **Reply #608 on:** Mar 16, 2012 at 12:32 PM »

i might need to read up on the tube pre and a buffer. thanks, goku!!

JojoD818 · « **Reply #609 on:** Mar 16, 2012 at 07:43 PM »

the MP5 is much like Joe Rasmussen's implementation of his hybrid tubed gc. his JLTi is a tube ccs loaded cathode follower.

docrob · « **Reply #610 on:** Mar 20, 2012 at 05:26 PM »

my friend needs your help

the power switch of his sakura AV-200 amp got stuck so it's always ON and cannot be turned OFF

need to unlug the cord to turn it OFF

anybody know if the switch can be repaired or if there's an available part sa electronics shop if it needs to be replaced? tinanung nya ung binilhan nyang store di magawa eh at wala raw nung switch

thanks

JojoD818 · « **Reply #611 on:** Mar 20, 2012 at 05:49 PM »

that's a pretty generic push button switch iirc. those used in the old crt TVs would do.

baka tinatamad lang yun store na binilan ng friend mo.

docrob · « **Reply #612 on:** Mar 20, 2012 at 06:38 PM »

thanks for the replies

sir Jojo, me alam kau store sa Raon pwede mabilhan nung push button switch pang CRT TVs?

sir Tony, nakabaon po ung switch di nga po gumagalaw kahit pindot-pindotin namin. isip ko nga buksan ung ilalim para silipin ung switch kaso di ko naman alam gagawin pag nakita ko na, any ideas po?

pasyalan ko sya ulit pag nalibre ng oras, sa ngaun di nya ginagamit at baka lalo raw masira

fantom_mayonaise · « **Reply #613 on:** Mar 20, 2012 at 11:25 PM »

docrob :

Are you going to buy a unit in the near future? Pasabay?

. The unit at the marketplace was sold outside PDVD. Bummer, I was next in line na...

The av-200T looks good for sourcing parts for DIY projects.

docrob · « **Reply #614 on:** Mar 20, 2012 at 11:37 PM »

hi sir, i already went to Jem's at Raon. they have one with a tag price of 4.1K pero me tawad pa hanggang 3.8K

my friend is offering me his sakura with a stucked-up power switch, tingnan ko ulit muna kaya rin ako nagtatanung dito

fantom_mayonaise · « **Reply #615 on:** Mar 20, 2012 at 11:49 PM »

okay. Jem's for me then.

allanxtreme · « **Reply #616 on:** Mar 21, 2012 at 03:06 PM »

Good day mga Sirs, help naman po sa SV-200T ko. Pag-on mo parang basag ang tunig na mahina. pag tumatagal eh lumalakas, pero garalgal ang tunog. sa tube na ba to o sa unit na talaga. TIA!

JojoD818 · « **Reply #617 on:** Mar 21, 2012 at 03:50 PM »

Quote from: allanxtreme on Mar 21, 2012 at 03:06 PM

Good day mga Sirs, help naman po sa SV-200T ko. Pag-on mo parang basag ang tunig na mahina. pag tumatagal eh lumalakas, pero garalgal ang tunog. sa tube na ba to o sa unit na talaga. TIA!

both channels? try swapping the tubes first.

JojoD818 · « **Reply #618 on:** Mar 21, 2012 at 03:51 PM »

Quote from: docrob on Mar 20, 2012 at 11:37 PM

hi sir, i already went to Jem's at Raon. they have one with a tag price of 4.1K pero me tawad pa hanggang 3.8K

my friend is offering me his sakura with a stucked-up power switch, tingnan ko ulit muna kaya rin ako nagtatanung dito

malayo po sa bituka yan sir, ang masama yun ayaw mag power on.

docrob · « **Reply #619 on:** Mar 21, 2012 at 07:15 PM »

Thanks for the replies sir Jojo and sir Tony, really appreciate it

pero problema nung pinuntahan ko kanina and test namin ayaw mag power On

though he swears tumunog daw dati, hirap pag kwento lang kasi buti na ung nakita ko na hindi nga tumunog

so i opened it up, wala naman akong nakitang sunog na parts, checked the fuse ok naman, proceeded to the power switch di rin sunog so unscrewed it and paghila ko nung knob wala na pala ung spring sa loob nung switch

i'll try to find a switch sa raon within the week sana meron

baka meron din kayung alam na shops na nagbebenta nito:

me markings na

SW-2 TV5
8A/129A 250V

thanks uli masters

fantom_mayonaise · « **Reply #620 on:** Mar 21, 2012 at 10:27 PM »

DocRob : Try shorting out the switch in the meantime. Pag tumunog, close the deal na

docrob · « **Reply #621 on:** Mar 22, 2012 at 02:54 AM »

yes fantom, i was planning todo that kanina pero ayaw nya eh

buti pinauwi nya sakin so gawinko yun just to find out if it's working

found a switch in ebay, store is located in HK but doesn't ship to RP..........bummer

sana meron dito

JojoD818 · « **Reply #622 on:** Mar 22, 2012 at 06:30 AM »

Can you post pic of the switch?

markcrenz · « **Reply #623 on:** Mar 22, 2012 at 08:13 AM »

those types of amps have jellybean switches. kung tipong ganito meron sa raon, or as sir tonyt said kahit sa neighborhood repair shops.

allanxtreme · « **Reply #624 on:** Mar 22, 2012 at 08:59 AM »

Thank you mga Sirs, both chanel Sir. Diko sure kung ano kasi problem. na swap ko na mga tubes, ganon din. i don't know naman yong sa switch. sino kaya pede magrepair mga Sirs. TIA!

docrob · « **Reply #625 on:** Mar 22, 2012 at 02:16 PM »

hello masters, eto po pics ng switch when i opened the AV-400 amp:

then nakita ko ito sa net same design but lower value of only 5A kaso they won't ship to the Philippines:

BTW, eto pic nung power amp board with large heatsink parang iba sa loob ng Sakura AV200T iba kasi value nung 2 big caps? or same lang din?

comments and suggestions please?

salamat po

docrob · « **Reply #626 on:** Mar 22, 2012 at 02:54 PM »

oh that would be sweet sir Tony, i would gladly take your offer so that i can also meet you and perhaps have the chance to listen to your Tube projects

pa PM na lang po nung address nyo sir

BTW sir, you posted this before:

power supply caps for the SS output stage are rated at 35vdc.....so that rails could be anywhere from +/-25 to +/- 30 volts, therefore this amp can deliver about 48 watts average per channel into an 8 ohm load...per my estimates....besides, the power traffo seem just about right for a 100watt amp...

magkaiba po layout and value nung 2 big caps (50VDC 3300uF) dun sa AV-400 amp, me significant difference po ba compared sa Sakura?

Thanks again

docrob · « **Reply #627 on:** Mar 22, 2012 at 09:40 PM »

ah ok, then that's the difference between the Sakura AV-200T and the SAV-400

will be in touch with you sir Tony

Thanks

JojoD818 · « **Reply #628 on:** Mar 22, 2012 at 09:41 PM »

Very common yan switch na yan sir, dami ko din dito niyan dati...

markcrenz · « **Reply #629 on:** Mar 22, 2012 at 10:11 PM »

Quote from: TonyT on Mar 22, 2012 at 02:29 PM

u can get the switch from a discarded AT computer psu, matitibay ang mga switch noon...or from discarded old dvd players....i have some of those i can even give you for free it you can come to the house to pick it up...

master T namimigay ka rin ba ng tubes?