[TechAssist] Re: 2SC 4834
- From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 23 Feb 2004 17:01:36 -0600
It is an indication of duty cycle. The supplies should run a 50% duty
cycle. If your duty cycle is not ballanced one will be sourcing more
current, therefor it has the higher duty cycle, the other transistor will
then be cooler.
I watch these things with an IR thermometer.
Wayne Vanaman
Omega Electronics
6904 W Fairfield Dr
Pensacola, Fl. 32506-3310
Wayne@xxxxxxxxxxxxxxxxxxxxx
WWW.PensacolaTVRepair.Com
850-456-5995 voice
850-458-6369 fax
----- Original Message -----
From: "Kevin" <kevintv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, February 23, 2004 4:36 PM
Subject: [TechAssist] Re: 2SC 4834
> Why would the COOLER one cause problems?
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of jonas miglinas
> Sent: Sunday, February 22, 2004 8:07 AM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: 2SC 4834
>
> I agree with using generics in this case also. Bought a bunch of SK
> 2SC4834
> and have not had any returns as of yet. But I'm also carefull to monitor
> the
> heat sinks for at least 30 minutes. If both run at the same
> temperature(very
> warm or cool) odds are they will last. BUT if one is running hotter or
> cooler than the other,then they will blow. Scope the COOLER one, your
> problem will usually be there.
>
> Jonas Miglinas
> Miglinas TV
> Chicago
> ----- Original Message -----
> From: "Al Gutz" <alg@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, February 20, 2004 10:26 PM
> Subject: [TechAssist] Re: 2SC 4834
>
>
> > I always use genrics in these, never any problem. The only time they
> > blow is if some other bad part is missed.
> >
> > Still not convinced that any manuf. including sony goes to the trouble
> > to hand select the best componets for their sets.
> >
> > Just try to avoid suppliers that sell cheap knockoffs of the original
> > part.
> >
> > Al G
> > Al's TV-Electronics
> > Pembroke Ont.
> > Canada
> >
> > Intrepid Video Support wrote:
> > >
> > > I'm confused on this...
> > > I was just told Sony does not make these anyway..that ordering
> generic
> ones are OK.
> > > Reason I have asked, there are companies that make kits for these.
> > > Some kits are $8., others are $12...so I've asked the difference at
> the
> different suppliers..
> > > B&D was one that told me these are all Generics that Sony uses the
> generics...
> > >
> > > Jeff Dougherty
> > > Intrepid Video TV/VCR
> > > 263 S Front St
> > > Steelton PA 17113
> > > fax...717-564-4952
> > > www.intrepid-video.com www.tech-repair.net
> > >
> > > ----- Original Message -----
> > > From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Friday, February 20, 2004 8:54 AM
> > > Subject: [TechAssist] Re: 2SC 4834
> > >
> > > I assume this is the pair used in Sony SMPS?
> > > NO!
> > > If the use is Sony. OEM only.
> > > I don't even use generac 4834's. Run hot, fail.
> > > Tritronics has them in both Florida and Mariland stores, both in the
> orig Sony#
> > > 872901950 and the 2SCxxx.
> > > Phil Bader
> > >
> > > Barry Thompson wrote:
> > >
> > > > Hi All: My order wasn't shipped and my local supplier is out. Has
> anyone
> > > > ever used NTE 2582 for these? Thanks Barry.
> > > > barrystv@xxxxxxx
> > > > Barrys TV
> > > > 613 224 3406
> > > > Ottawa.Canada.
> > > >
> > >
> >
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> > > --
> > >
> > > Philip Bader
> > > Jan Phyl TV Inc. (estab. 1976)
> > > 3420 Recker Hwy. Winter Haven, Fl. 33880
> > > Fax (863) 299-8821
> > > email: tjanphyl@xxxxxxxxxxxxxxx
> > >
> >
> >
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