[TechAssist] Re: Heat sink compound
- From: "Shaun" <satguy@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 9 Oct 2004 21:15:44 -0600
Ok I will vote yes....wait I mean no...I mean ahhh darn that Kerry....
Shaun
Advanced Electronics
Fort Morgan, CO 80701
satguy@xxxxxxxxxxxxx
----- Original Message -----
From: "larry" <schntv@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, October 09, 2004 6:29 PM
Subject: [TechAssist] Re: Heat sink compound
> i vote, the portion of the transistor touching the heat sink
> will be hotter than the sink.
> Larry
>
>
> Hoyt's TV wrote:
>
> > OK, I'll vote Yes.
> >
> >
> > Russ Hoyt
> > Hoyt's TV
> > Exeter, NH
> >
> >
> > ----- Original Message -----
> > From: "J Silverman" <greentron@xxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Saturday, October 09, 2004 4:10 PM
> > Subject: [TechAssist] Re: Heat sink compound
> >
> >
> >
> >>Obviously the answer is that we have to forget about science and just
take
> >
> > a
> >
> >>vote and that will settle the question. Governments do that all the time
> >
> > and
> >
> >>it works for them, doesnt it? After all, California passed a law that
80%
> >
> > of
> >
> >>the cars sold had to be totally none-polluting and that no more power
> >
> > plants
> >
> >>were to be constructed and this hasnt caused any problems for them, has
> >
> > it?
> >
> >>Now I think they are working on a law to eliminate earthquakes. Its
about
> >>time!
> >>Jerry Silverman
> >>Greentron Inc
> >>4 Newland Ave
> >>Greenville SC 29609
> >>Fax/Phone 864 232 3889
> >>mail to: greentron@xxxxxxx
> >>----- Original Message -----
> >>From: "walter wood" <wwood_38478@xxxxxxxxx>
> >>To: <techassist@xxxxxxxxxxxxx>
> >>Sent: Friday, October 08, 2004 11:34 PM
> >>Subject: [TechAssist] Re: Heat sink compound
> >>
> >>
> >>
> >>>Sorry, but I have to say that I find the heat sinks
> >>>hotter than the device quite often.
> >>>I also have a laser thermometer, and have compiled
> >>>some readings for reference.
> >>>By the way, It seems that the only thing the laser
> >>>does is help you aim it.
> >>>When mine is turned on, it will read whether the
> >>>trigger(turns on the laser) is squeezed or not.
> >>>One can find quite a range of temps inside a TV,
> >>>but, I DO believe that a properly working heat sink
> >>>will be hotter than the device fastened to it.
> >>>At least, behind, and above the device.
> >>>For what it's worth!!
> >>>Walter
> >>>--- gulftech@xxxxxxxx wrote:
> >>>
> >>>
> >>>>Come on Bill,
> >>>>
> >>>>I respect you and very much enjoy your posts.
> >>>>But, it is impossible for
> >>>>a heat sink to be hotter than the transistor
> >>>>attached to it. I have a
> >>>>laser thermometer that I use. NEVER have I seen
> >>>>the heat sink to be
> >>>>hotter than the transistor. After all, where
> >>>>does the heat come from?
> >>>>
> >>>>Plastic transistors are hardest to test, but the
> >>>>highest temperature
> >>>>measured would be equal to or lower than the
> >>>>actual temp. of the
> >>>>semiconductor.
> >>>>
> >>>>
> >>>>Ken Smith
> >>>>Gulf Technical Services
> >>>>3034 Gulf Breeze Parkway
> >>>>Gulf Breeze, FL 32563
> >>>>850-934-8324 (Voice), 850-932-0819 (fax)
> >>>>
> >>>>On Fri, 8 Oct 2004 14:00:41 -0700 Bil Green
> >>>><tv.vcrrepair@xxxxxxxxxxx>
> >>>>writes:
> >>>>
> >>>>>Actually I'm right. When you place your finger
> >>>>
> >>>>against the plastic
> >>>>
> >>>>>section of a transistor or IC which is on a
> >>>>
> >>>>heat sink the
> >>>>
> >>>>>temperature usually feels cooler the heat sink.
> >>>>>
> >>>>>You can't place your finger on the rear (often
> >>>>
> >>>>metal) side which is
> >>>>
> >>>>>against the heat sink (and may be much hotter).
> >>>>>
> >>>>>But the heat sink is often hot enough to burn
> >>>>
> >>>>your finger (and
> >>>>
> >>>>>often the device is definitely NOT). Now maybe
> >>>>
> >>>>the plastic just
> >>>>
> >>>>>doesn't transfer the heat to your finger very
> >>>>
> >>>>well. I'm don't care
> >>>>
> >>>>>about science at this point, only what I see or
> >>>>
> >>>>feel.
> >>>>
> >>>>>
> >>>>>Bil Green
> >>>>>PC 1000
> >>>>>Mammoth Lakes, CA 93546
> >>>>>760-924-1000
> >>>>>
> >>>>>Friday, October 8, 2004, 1:22:50 PM, you wrote:
> >>>>>
> >>>>>TTE> Bil...
> >>>>>TTE> Now you know better then that.
> >>>>>TTE> Basic Science.;-)
> >>>>>TTE> That would be Thermal Energy in reverse.
> >>>>
> >>>>The source has to be
> >>>>
> >>>>>more then
> >>>>>TTE> the dissipation.
> >>>>>
> >>>>>TTE> Ask Wayne.;-)
> >>>>>
> >>>>>TTE> -Ed-
> >>>>>
> >>>>>TTE> Tel-Tek Electronics
> >>>>>TTE> Ontario-Canada
> >>>>>
> >>>>>TTE> teltek3@xxxxxxxxxxxx
> >>>>>TTE> teltek@xxxxxxxxx
> >>>>>
> >>>>>
> >>>>>TTE> -----Original Message-----
> >>>>>TTE> From: techassist-bounce@xxxxxxxxxxxxx
> >>>>>TTE> [mailto:techassist-bounce@xxxxxxxxxxxxx]
> >>>>
> >>>>On Behalf Of Bil Green
> >>>>
> >>>>>TTE> Sent: Friday, October 08, 2004 3:57 PM
> >>>>>TTE> To: J Silverman
> >>>>>TTE> Subject: [TechAssist] Re: Heat sink
> >>>>
> >>>>compound
> >>>>
> >>>>>TTE> Isn't the heat sink always hotter than the
> >>>>
> >>>>device? Heat rises
> >>>>
> >>>>>and is
> >>>>>TTE> stored by the heat sink.
> >>>>>
> >>>>>
> >>>>>TTE> Bil Green
> >>>>>TTE> PC 1000
> >>>>>TTE> Mammoth Lakes, CA 93546
> >>>>>TTE> 760-924-1000
> >>>>>
> >>>>>TTE> Friday, October 8, 2004, 9:50:46 AM, you
> >>>>
> >>>>wrote:
> >>>>
> >>>>>JS>> So it sucks so much heat out that the heat
> >>>>
> >>>>sink is hotter than
> >>>>
> >>>>>the
> >>>>>TTE> devices
> >>>>>JS>> doing the heating? Patent it quick!
> >>>>>JS>> Jerry Silverman
> >>>>>JS>> Greentron Inc
> >>>>>JS>> 4 Newland Ave
> >>>>>JS>> Greenville SC 29609
> >>>>>JS>> Fax/Phone 864 232 3889
> >>>>>JS>> mail to: greentron@xxxxxxx
> >>>>>JS>> ----- Original Message -----
> >>>>>JS>> From: "Bil Green"
> >>>>
> >>>><tv.vcrrepair@xxxxxxxxxxx>
> >>>>
> >>>>>JS>> To: "Paul" <techassist@xxxxxxxxxxxxx>
> >>>>>JS>> Sent: Thursday, October 07, 2004 4:46 PM
> >>>>>JS>> Subject: [TechAssist] Re: Heat sink
> >>>>
> >>>>compound
> >>>>
> >>>>>
> >>>>>>>>I have been using silicone grease. It's
> >>>>
> >>>>available in a tube,
> >>>>
> >>>>>used for
> >>>>>
> >>>>>>>>servicing pools and hot tubs, also boats.
> >>>>
> >>>>Designed for high heat
> >>>>
> >>>>>>>>applications. Has worked well for many
> >>>>
> >>>>years (and it's clear).
> >>>>
> >>>>>>>>The heat sinks get much hotter than the
> >>>>
> >>>>transistors and chips so
> >>>>
> >>>>>I
> >>>>>
> >>>>>>>>know for sure that it's working.
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>Bil Green
> >>>>>>>>PC 1000
> >>>>>>>>Mammoth Lakes, CA 93546
> >>>>>>>>760-924-1000
> >>>>>>>>
> >>>>>>>>Thursday, October 7, 2004, 10:10:38 AM, you
> >>>>
> >>>>wrote:
> >>>>
> >>>>>>>>P> Hi Al, been using GC silicone 10-8101
> >>>>
> >>>>for about 20 years.
> >>>>
> >>>>>Never
> >>>>>TTE> had a
> >>>>>JS>> repeat failure due to its use. I like it
> >>>>
> >>>>because it is less
> >>>>
> >>>>>messy
> >>>>>TTE> than the
> >>>>>JS>> white or pink stuff the mfgs use.
> >>>>>
> >>>>>>>>P>
> >>>>>
> >>>>>JS>> Paul
> >>>>>
> >>>>>>>>P> al m <ampm@xxxxxxx> wrote:
> >>>>>>>>P> I know it's off topic but I haven't
> >>>>
> >>>>thought of what I was
> >>>>
> >>>>>buying
> >>>>>JS>> before.
> >>>>>
> >>>>>>>>P> Which is better the non silicone or the
> >>>>
> >>>>silicone compound?
> >>>>
> >>>>>>>>P> Al Marquardt
> >>>>>>>>P> ampm@xxxxxxx
> >>>>>>>>P> Al Marquardt Electronic Repair
> >>>>>>>>P> 206 W Main
> >>>>>>>>P> Girardville Pa. 17935
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>
> >>>>>P>>>
> >>>>>TTE>
> >>>>>
>
>>>------------------------------------------------------------------------
> >>>
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> >>>>
> >>>>>>>>
> >>>>>>>>P> Paul ,B
> >>>>>>>>P> Central TV&Video
> >>>>>>>>P> 911W Grand Ave
> >>>>>>>>P> Grover Beach Ca.
> >>>>>>>>P> (805)481-8084
> >>>>>>>>
> >>>>>>>>
> >>>>>>>>
> >>>>>
> >>>>>P>>>
> >>>>>TTE>
> >>>>>
>
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> >>>
> >>>
> >>>=====
> >>>Walter Wood
> >>>United TV Service
> >>>501 Poplar St.
> >>>P.O. box 602
> >>>Pulaski Tn. 38478
> >>>mailto:wwood_38478@xxxxxxxxx
> >>>
> >>
>
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