[TechAssist] Re: use a battery backup UPS for TV,DVD,surround amp system protection ?

From: "LeRoy Westlund" <llw@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Date: Tue, 11 May 2004 11:49:20 -0600
That's debatable,....but,...NOT by me !
;-)

LLW

LeRoy Westlund
Westlund TV & Electronics
97 North Main                                "Where there's a will,...
Centerfield, UT 84622-0087           There's always a way."
Ph./Fax  435-528-3822
mailto:LLW@xxxxxxxxxx

-----Original Message-----
From: becyn <becyn@xxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
Date: Tuesday, May 11, 2004 10:35 AM
Subject: [TechAssist] Re: use a battery backup UPS for TV,DVD,surround amp
system protection ?


>Ah, I love being the the company of the "best and brightest".;-)
>
>Jim McVey
>McVey Alltronix
>327 Broadway
>Newburgh Ny 12550
>ph: 845 561 8383
>fx: 845 561 9017
>Consumer electronics &
>computer service.
>Factory authorized for
>over twenty brands.
>----- Original Message -----
>From: "Damon" <damon101@xxxxxxxxxxxxxx>
>To: "TechAssist" <techassist@xxxxxxxxxxxxx>
>Sent: Monday, May 10, 2004 8:26 PM
>Subject: [TechAssist] Re: use a battery backup UPS for TV,DVD,surround amp
>system protection ?
>
>
>> Well, wave a steak or spaghetti in front of my nose ....I'll be asleep in
>5
>> minutes. At least Professor Silverman can get completely through his
>> dissertation.....and my eyes won't even roll back into my head.
>>
>>  Just had the best darn steak I ever ate about 5 minutes ago....shared
>some
>> with a couple of my cats...even better than the steaks I get at
Applebee's
>> or TGI Friday's.....and you know why??
>>
>> Because I zzzzzzzzzzzzzzzzzzz.....sat on it in the van, zzzzzzzzzzzzzzzz
>> today....zzzzzzzzzzzzzzzzz smells just like a zzzzzzzzzzz...mmmmmmm.
>> Now that's zzzzzzzzzzzzzzzzzzzz good eatin'   ;-)
>>
>> Damon Brunger
>>
>> ----- Original Message -----
>> From: "Hoyt's TV" <hoytstv@xxxxxxxxxxx>
>> To: <techassist@xxxxxxxxxxxxx>
>> Sent: Monday, May 10, 2004 8:45 AM
>> Subject: [TechAssist] Re: use a battery backup UPS for TV,DVD,surround
amp
>> system protection ?
>>
>>
>> | > Tell me a story about capacitors and how they are
>> | built.......C'mon....tell
>> | > me one more....then I'll go to bed
>> |
>> | Gawd, you must me old.
>> |
>> | Russ Hoyt
>> | Hoyt's TV
>> | Exeter, NH
>> |
>> |
>> | ----- Original Message -----
>> | From: "Damon" <damon101@xxxxxxxxxxxxxx>
>> | To: <techassist@xxxxxxxxxxxxx>
>> | Sent: Monday, May 10, 2004 7:51 AM
>> | Subject: [TechAssist] Re: use a battery backup UPS for TV,DVD,surround
>amp
>> | system protection ?
>> |
>> |
>> | > BINGO.....that's what makes ALL transformers.....and inductors
>> | > operate....NON saturated magnetism. You reach that point, or your
>input
>> | > signal stabilizes and you're done.
>> | >
>> | > I'm not as elaborate as Professor Silverman here.....but he knows his
>> | stuff
>> | > guys..... (that or he's the best shyster I've ever heard...injecting
>> | subtle
>> | > half truths in his full truths juuuuuuust enough to slip them past
>> us....)
>> | >
>> | > Tell me a story about capacitors and how they are
>> | built.......C'mon....tell
>> | > me one more....then I'll go to bed....pleeeeeeeeeeze...;-)
>> | >
>> | > Damon Brunger
>> | > Telrad Electronic Services
>> | > Ft Wayne, IN 46815
>> | >
>> | >
>> | > ----- Original Message -----
>> | > From: "J Silverman" <greentron@xxxxxxx>
>> | > To: <techassist@xxxxxxxxxxxxx>
>> | > Sent: Sunday, May 09, 2004 3:34 PM
>> | > Subject: [TechAssist] Re: use a battery backup UPS for
TV,DVD,surround
>> amp
>> | > system protection ?
>> | >
>> | >
>> | > | Even though the voltage applied is not changing during the flat top
>of
>> a
>> | > | square wave, the current is changing. The changing current is what
>is
>> | > | generating the changing manetic field which is what is generating
>the
>> | > | counter EMF. This continues as long as the core does not saturate.
>> | > | Jerry Silverman
>> | > | Greentron Inc
>> | > | 4 Newland Ave
>> | > | Greenville SC 29609
>> | > | 864 232 3889
>> | > | Fax 271 2080
>> | > | mailto:greentron@xxxxxxx
>> | > | ----- Original Message -----
>> | > | From: "George" <grndmstrg@xxxxxxxxxxxx>
>> | > | To: <techassist@xxxxxxxxxxxxx>
>> | > | Sent: Saturday, May 08, 2004 11:52 PM
>> | > | Subject: [TechAssist] Re: use a battery backup UPS for
>TV,DVD,surround
>> | amp
>> | > | system protection ?
>> | > |
>> | > |
>> | > | > Ok, what about the impedance loss of the transformer? When the
>> square
>> | > wave
>> | > | > reaches the maximum volt it loses the changing potential that
>takes
>> | > place
>> | > | > when alternating current is applied, therefore no counter
>> | electromotive
>> | > | > force (EMF) is developed thus no reactance is developed, there
>will
>> | only
>> | > | be
>> | > | > direct current resistance present, that can equal to damaging
high
>> | > current
>> | > | > levels until it switches then high current again. I would hope
the
>> | > circuit
>> | > | > has a primary fuse in place. Just my two cents worth.
>> | > | >
>> | > | > George
>> | > | > Afana Electronics
>> | > | > Moreno Valley, CA
>> | > | > ----- Original Message -----
>> | > | > From: <gulftech@xxxxxxxx>
>> | > | > To: <techassist@xxxxxxxxxxxxx>
>> | > | > Sent: Saturday, May 08, 2004 4:45 PM
>> | > | > Subject: [TechAssist] Re: use a battery backup UPS for
>> TV,DVD,surround
>> | > amp
>> | > | > system protection ?
>> | > | >
>> | > | >
>> | > | > > Come on Jerry,
>> | > | > >
>> | > | > > Since when is a square wave referred to as RMS?  That is only
>> | applied
>> | > to
>> | > | > > normal AC of some given frequency.
>> | > | > >
>> | > | > > I would agree that a zero to +115 volt square wave would result
>in
>> | > | 115VDC
>> | > | > > output, but as far as ripple--you got to be kidding.  That
would
>> be
>> | a
>> | > | 50%
>> | > | > > duty cycle, fed into a conventional bridge assuming no leakage.
>> It
>> | > | would
>> | > | > > also result in a higher than normal current for the diodes of
>the
>> | > | bridge.
>> | > | > >
>> | > | > >
>> | > | > > Feeding 120 VAC 60Hz, the peak is (indeed) 169.68 volts.
>(1.414
>> x
>> | > | 120.)
>> | > | > >  But, a square wave, 0-120, results in just 120 volts less
decay
>> | time
>> | > | > > during non-conduction, with much less need for filtering.  Now,
>if
>> | the
>> | > | > > input were to be a -60 to +60 square wave, the result would
>still
>> be
>> | > the
>> | > | > > same.  I have too much respect for your input not to challenge
>> your
>> | > | > > statement.  You said "Transformers designed for 60 Hertz will
>run
>> | > hotter
>> | > | > > when fed a square wave."  Not true.  The avg. current of a sine
>> wave
>> | > | > > input is only 63%.  A square wave is either on or off.  That
>means
>> | > 50%.
>> | > | > > Now, even if the square wave was +/- 60 vdc, the average
current
>> | would
>> | > | > > STILL BE LESS than 120v RMS.
>> | > | > >
>> | > | > > I don't often pick a problem with your posts.  You are a person
>I
>> | > | > > respect.  However, I disagree with your statement.  I certainly
>> | stand
>> | > to
>> | > | > > be wrong.  It wouldn't be the first time, but according to
>theory,
>> | > | > > whether it be 0-120 V RMS  or -60-+60 square wave, will produce
>> the
>> | > same
>> | > | > > average current.  The peak voltages would be of course
>different.
>> | > Given
>> | > | > > the separate inputs, 120 VAC to a bridge gives 169 volts peak.
>A
>> | > square
>> | > | > > wave 120 dc input yeilds only 120 volts output, with lesser
need
>> for
>> | > | > > filtering.  This is, of course, neglecting the diode drop.
>> | > | > >
>> | > | > > I don't know how this would affect equipment connected to a
>> backup.
>> | I
>> | > | > > don't mean to keep this for discussion.  I personally feel that
>> | > | comparing
>> | > | > > computers to amplifiers for a load is not possible.  The
>computer
>> | load
>> | > | is
>> | > | > > fairly constant, but the amplifier load is not.   The current
>draw
>> | on
>> | > a
>> | > | > > computer is fairly constant.  That of an amp is dependent on
>both
>> | the
>> | > | > > source and the volume level selected.  I would suggest that the
>> peak
>> | > of
>> | > | > > power required for an amp would be much higher than for a
>> | > | > > computer/monitor.
>> | > | > >
>> | > | > > My apologies to Jay, the other TechAssist staff, and to those
of
>> you
>> | > who
>> | > | > > could care less.
>> | > | > >
>> | > | > > I don't mean to imply that this question has no merit.  It
does.
>> It
>> | > | > > gives all of us a chance to discuss the basics of our trade.
>> | > | > >
>> | > | > > I spent years teaching this stuff, but I have been wrong
before.
>> | Just
>> | > | > > don't stop trying to learn.
>> | > | > >
>> | > | > >
>> | > | > > Ken Smith
>> | > | > > Gulf Technical Services
>> | > | > > 3034 Gulf Breeze Parkway
>> | > | > > Gulf Breeze, FL  32563
>> | > | > > 850-934-8324 (Voice) 850-932-0819 (Fax)
>> | > | > >
>> | > | > >
>> | > | > >
>> | > | > >
>> | > | > > On Fri, 7 May 2004 17:38:51 -0400 "J Silverman"
>> <greentron@xxxxxxx>
>> | > | > > writes:
>> | > | > > > If you have a 115 volt RMS square wave and rectify it and
>filter
>> | it,
>> | > | > > > you
>> | > | > > > will get approx 115 VDC and practically no ripple. If you
>> rectify
>> | > | > > > and filter
>> | > | > > > a 115 volt RMS sine wave you will get about 162 VDC and
ripple
>> | > | > > > depending on
>> | > | > > > load. Transformers designed for 60 Hertz will run hotter when
>> fed
>> | a
>> | > | > > > square
>> | > | > > > wave. Thinner laminations are used if the transformer has to
>> | handle
>> | > | > > > higher
>> | > | > > > frequencies. Also the magnetron high voltage in a microwave
is
>> | > | > > > developed
>> | > | > > > using a 60 Hertz transformer with a resonating capacitor,
>> selected
>> | t
>> | > o
>> | > | > > > resonate with the leakage inductance of the transformer. If
>you
>> | want
>> | > | > > > to
>> | > | > > > change power sources for equipment, you have to keep these
>> things
>> | in
>> | > | > > > mind.
>> | > | > > > Jerry Silverman
>> | > | > > > Greentron Inc
>> | > | > > > 4 Newland Ave
>> | > | > > > Greenville SC 29609
>> | > | > > > 864 232 3889
>> | > | > > > Fax 271 2080
>> | > | > > > mailto:greentron@xxxxxxx
>> | > | > > > ----- Original Message -----
>> | > | > > > From: "Ty" <ty1k@xxxxxxxxxxx>
>> | > | > > > To: <techassist@xxxxxxxxxxxxx>
>> | > | > > > Sent: Friday, May 07, 2004 4:23 PM
>> | > | > > > Subject: [TechAssist] Re: use a battery backup UPS for
>> | > | > > > TV,DVD,surround amp
>> | > | > > > system protection ?
>> | > | > > >
>> | > | > > >
>> | > | > > > > This question has me intrigued. Why is it being debated by
>> | > | > > > proficient
>> | > | > > > > electronic technicians?
>> | > | > > > > OK. MODERN televisions, VCRs, DVDs, anything with a pulse
>> power
>> | > | > > > supply.
>> | > | > > > > Reasoning that modern Pulse Power supplies essentially run
>on
>> | DC,
>> | > | > > > I was
>> | > | > > > > wondering what difference it makes what kind of sign,
>square,
>> or
>> | > | > > > whatever,
>> | > | > > > > wave gets rectified in order to charge the primary filter
>> | > | > > > capacitor. As
>> | > | > > > long
>> | > | > > > > as the filter is charged to the critical starting voltage
>and
>> is
>> | > | > > > maintained.
>> | > | > > > > Of course, you will have to raise the input to meet the
>output
>> | > | > > > criteria.
>> | > | > > > > Heck, you can use DC for input and you can even ignore the
>> | > | > > > polarity due to
>> | > | > > > > the bridge!.
>> | > | > > > > Mmmmm....
>> | > | > > > > Take a voltage reading on the main filter cap under full
>load.
>> | > | > > > > Connect a bunch of batteries to attain the voltage. Connect
>it
>> | > | > > > across the
>> | > | > > > > filter and you got your problem solved. Instant UPS. Of
>> course,
>> | > | > > > you will
>> | > | > > > > have to modify the ON/OFF switch. Another problem is
>charging
>>
>> | > | > > > inrush. Use
>> | > | > > > a
>> | > | > > > > diode and resistor combination. Heck, we can figure it out!
>> | > | > > > > Now the 10 lb transformer in a power amplifier or in the
>> | Microwave
>> | > | > > > is
>> | > | > > > > another story, but not impossible if batteries are used
>after
>> | the
>> | > | > > > > transformer. Storage would be a problem. Where would you
>store
>> | > | > > > enough
>> | > | > > > > batteries to power a Magnetron and finish cooking that
>turkey.
>> | > | > > > > Lets see. Move the holyday dishes to the basement, move the
>> | > | > > > regular dishes
>> | > | > > > > to where the holyday dishes were, and WALLA!  LOOK OUT
>TURKEY!
>> | > | > > > > Just realized the biggest obstacle to my simple idea. How
am
>I
>> | > | > > > going to
>> | > | > > > get
>> | > | > > > > the wife to allow me to drill a hole in the countertop...
>> | > | > > > >
>> | > | > > > > Have fun! >(;o)
>> | > | > > > >
>> | > | > > > > Ty
>> | > | > > > >
>> | > | > > > > Tiberius Kraemer
>> | > | > > > > BLUE STAR ELECTRONICS
>> | > | > > > > 3312 Silverton Rd. NE
>> | > | > > > > Salem, Oregon
>> | > | > > > > Phone: 503 391 1491
>> | > | > > > > Mailto:ty1k@xxxxxxxxxxx
>> | > | > > > >
>> | > | > > > >
>> | > | > > > >
>> | > | > > > > -----Original Message-----
>> | > | > > > > From: techassist-bounce@xxxxxxxxxxxxx
>> | > | > > > > [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Phil
>> Bader
>> | > | > > > > Sent: Friday, May 07, 2004 11:44 AM
>> | > | > > > > To: techassist@xxxxxxxxxxxxx
>> | > | > > > > Subject: [TechAssist] Re: use a battery backup UPS for
>> | > | > > > TV,DVD,surround
>> | > | > > > > amp system protection ?
>> | > | > > > >
>> | > | > > > >
>> | > | > > > > Shoot, jerry why are your facts so depressing!
>> | > | > > > > Seriously, I called APC, and the tech said the "stepped
sine
>> | wave"
>> | > | > > > > versions may not work satisfactorily with , say, an
>engraving
>> | > | > > > machine
>> | > | > > > > (My next door neighbor has a trophy shop). he suggested
>their
>> | > | > > > better
>> | > | > > > > Smart UPS line, I think its called.Anyway, it would be sort
>of
>> | > self
>> | > | > > > > defeating to destroy the very thing you are wanting to
>> | protect...
>> | > | > > > > Phil Bader
>> | > | > > > >
>> | > | > > > > J Silverman wrote:
>> | > | > > > >
>> | > | > > > > >The computer power supplies work fine with the 115 VAC
>(RMS)
>> | > | > > > square wave
>> | > | > > > > >output from the low cost UPSs. Most consumer electronic
>> | equipment
>> | > | > > > is
>> | > | > > > rated
>> | > | > > > > >for 115 volt RMS 60 Hertz sine wave, plus or minus 10%. If
>> you
>> | > | > > > use the
>> | > | > > > > >computer UPS with consumer electronic equipment the
>internal
>> | > | > > > voltages and
>> | > | > > > > >losses are different than the spec., so you are not sure
if
>> you
>> | > | > > > will have
>> | > | > > > > >functional problems or if things will overheat. A lot of
>> stuff
>> | > | > > > will
>> | > | > > > > probably
>> | > | > > > > >work OK, but you cant be sure. So the suggestion was made
>to
>> | use
>> | > | > > > UPSs
>> | > | > > > that
>> | > | > > > > >have a sine wave output and these are many times more
>> expensive
>> | > | > > > than the
>> | > | > > > > >ones with a square wave output.
>> | > | > > > > >
>> | > | > > > > >Jerry Silverman
>> | > | > > > > >Greentron Inc
>> | > | > > > > >4 Newland Ave
>> | > | > > > > >Greenville SC 29609
>> | > | > > > > >864 232 3889
>> | > | > > > > >Fax 271 2080
>> | > | > > > > >mailto:greentron@xxxxxxx
>> | > | > > > > >----- Original Message -----
>> | > | > > > > >From: "Kevin" <kevintv@xxxxxxx>
>> | > | > > > > >To: <techassist@xxxxxxxxxxxxx>
>> | > | > > > > >Sent: Friday, May 07, 2004 5:30 AM
>> | > | > > > > >Subject: [TechAssist] Re: use a battery backup UPS for
>> | > | > > > TV,DVD,surround
>> | > | > > > amp
>> | > | > > > > >system protection ?
>> | > | > > > > >
>> | > | > > > > >
>> | > | > > > > >
>> | > | > > > > >
>> | > | > > > > >>Using a UPS for a computer is also designed to save what
a
>> | > | > > > person is
>> | > | > > > > >>working on at the time of a power outage.  When the power
>> goes
>> | > | > > > out the
>> | > | > > > > >>computer stays on and the person can save his work and
>then
>> | shut
>> | > | > > > the
>> | > | > > > > >>computer down properly.  In some cases it will also
>prevent
>> | data
>> | > | > > > from
>> | > | > > > > >>being corrupted on the hard drive when the power goes
out.
>> | > | > > > Having the
>> | > | > > > > >>power outage causes windows to shut down improperly,
which
>> | could
>> | > | > > > corrupt
>> | > | > > > > >>data on the hard drive.
>> | > | > > > > >>
>> | > | > > > > >>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
>Hoyt's
>> | TV
>> | > | > > > > >>Sent: Friday, April 30, 2004 2:11 PM
>> | > | > > > > >>To: techassist@xxxxxxxxxxxxx
>> | > | > > > > >>Subject: [TechAssist] Re: use a battery backup UPS for
>> | > | > > > TV,DVD,surround
>> | > | > > > > >>amp system protection ?
>> | > | > > > > >>
>> | > | > > > > >>Considering the price of some TVs and stereos these days,
>> I'm
>> | > | > > > surprised
>> | > | > > > > >>they
>> | > | > > > > >>don't push UPS's for those, like they do for computers.
>> | > | > > > Computers were
>> | > | > > > > >>the
>> | > | > > > > >>first things that were overly sensitive but TVs etc. have
>> now
>> | > | > > > caught up.
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>Russ Hoyt
>> | > | > > > > >>Hoyt's TV
>> | > | > > > > >>Exeter, NH
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>----- Original Message -----
>> | > | > > > > >>From: "Larry Poffen" <lpoffen@xxxxxxx>
>> | > | > > > > >>To: <techassist@xxxxxxxxxxxxx>
>> | > | > > > > >>Sent: Friday, April 30, 2004 3:46 PM
>> | > | > > > > >>Subject: [TechAssist] Re: use a battery backup UPS for
>> | > | > > > TV,DVD,surround
>> | > | > > > > >>amp
>> | > | > > > > >>system protection ?
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>>I have used a APC 1000 for my personal stuff for about 2
>> | years.
>> | > | > > >  I had
>> | > | > > > > >>>
>> | > | > > > > >>>
>> | > | > > > > >>a
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>>power surge that took it out this year, along with many
>> other
>> | > | > > > things,
>> | > | > > > > >>>
>> | > | > > > > >>>
>> | > | > > > > >>but
>> | > | > > > > >>my
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>>36" TV  &VCR/  stereo stuff were all OK.  It is worth
the
>> | peace
>> | > | > > > of
>> | > | > > > > >>>
>> | > | > > > > >>>
>> | > | > > > > >>mind.
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>>Larry
>> | > | > > > > >>>
>> | > | > > > > >>>Larrys TV Service
>> | > | > > > > >>>Broken Arrow OK 74011
>> | > | > > > > >>>phone 918-455-1041
>> | > | > > > > >>>Fax 918-451-4485
>> | > | > > > > >>>e-mail lpoffen@xxxxxxx
>> | > | > > > > >>>----- Original Message -----
>> | > | > > > > >>>From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
>> | > | > > > > >>>To: <techassist@xxxxxxxxxxxxx>
>> | > | > > > > >>>Sent: Friday, April 30, 2004 9:06 AM
>> | > | > > > > >>>Subject: [TechAssist] use a battery backup UPS for
>> | > | > > > TV,DVD,surround amp
>> | > | > > > > >>>system protection ?
>> | > | > > > > >>>
>> | > | > > > > >>>
>> | > | > > > > >>>
>> | > | > > > > >>>
>> | > | > > > > >>>>I never heard of anyone doing this, but I've had this
>> | thought
>> | > | > > > for a
>> | > | > > > > >>>>
>> | > | > > > > >>>>
>> | > | > > > > >>few
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>>>years:
>> | > | > > > > >>>>use a heavy battery back up UPS like used on PC systems
>> for
>> | an
>> | > | > > > > >>>>entertainment center. Many ills are from power
>> | > | > > > > >>>>fluctuations,sags,surges,etc. TV EEPROMs corrupted,
>power
>> | > | > > > supplies
>> | > | > > > > >>>>damaged, pro-jo CRTs damaged with  a spot because it
>went
>> | down
>> | > | > > > at
>> | > | > > > > >>>>
>> | > | > > > > >>>>
>> | > | > > > > >>once
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>>>without proper power down,etc.
>> | > | > > > > >>>>Most equipement is not a heavy current draw.
>> | > | > > > > >>>>Can this be done and should it?
>> | > | > > > > >>>>I have a Zenith 50" projection TV (not wide
>> screen,standard
>> | > | > > > 3:4)
>> | > | > > > > >>>>
>> | > | > > > > >>>>
>> | > | > > > > >>which
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>>>is rated at 215 watts (2.8A) "max".
>> | > | > > > > >>>> I think my VCR/DVD deck pulls maybe 30 watts.
>> | > | > > > > >>>>My Bose "lifestyle 7" surround amp, I don't know the
>> | wattage.
>> | > | > > > > >>>>And a cable box maybe another 30 watts?
>> | > | > > > > >>>>I'm guessing 300-400 watts max running everything
>> | > | > > > > >>>> if using the sound system as well. Much less if using
>> only
>> | > the
>> | > | > > > > >>>>
>> | > | > > > > >>>>
>> | > | > > > > >>projo's
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>>>speakers.
>> | > | > > > > >>>>Now most of these UPS units are in standby mode and
the
>> | > | > > > connected
>> | > | > > > > >>>>
>> | > | > > > > >>>>
>> | > | > > > > >>gear
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>>>is running off line current until there is a power
loss,
>> | which
>> | > | > > > time
>> | > | > > > > >>>>ultra-fast switching transferrs power to the battery
>> system.
>> | > | > > > This
>> | > | > > > > >>>>
>> | > | > > > > >>>>
>> | > | > > > > >>would
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>>>be only needed for intermittant power fluctuations, or
>if
>> | lost
>> | > | > > > > >>>>
>> | > | > > > > >>>>
>> | > | > > > > >>totally,
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>>>enough time to safely power off the audio/video system.
>> | > | > > > > >>>>A 6 outlet power strip plugged into the UPS would be
>> | > | > > > convenient.
>> | > | > > > > >>>>What would be a good power rating for a UPS?
>> | > | > > > > >>>>Twice needed wattage? whats rule of thumb, and also
>whats
>> | your
>> | > | > > > > >>>>
>> | > | > > > > >>>>
>> | > | > > > > >>feedback
>> | > | > > > > >>
>> | > | > > > > >>
>> | > | > > > > >>>>on this idea?
>> | > | > > > > >>>>Phil Bader
>> | > | > > > > >>>>
>> | > | > > > > >>>>--
>> | > | > > > > >>>>
>> | > | > > > > >>>>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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[TechAssist] Re: use a battery backup UPS for TV,DVD,surround amp system protection ?

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