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Subject |
Author |
Date Posted |
Forum
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RE: How to connect Nook to Tengo wi-fi?
He said it was FREE
And apparantely working with his laptop
He just needs to hook up his Nook reader
Opinions about value of Tengo service are off topic and have been covered in other threads
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MrWizard
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02/09/12 10:15pm |
Technology Corner
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RE: 3000W Chinese Gensets Info.
It does get a lot of refferral links in new generator threads
It is the defintive refference point for all chinese generator info
The newer model inverter sets now garner more attention
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MrWizard
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02/09/12 11:28am |
Tech Issues
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RE: Straight Talk...Bring your own GSM phone coming 2-7-12
well 100mb means some music or maybe a few youtube videos
Your not going to stream any tv shows sports or movies
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MrWizard
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02/09/12 11:23am |
Technology Corner
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RE: Streaming from computer to OLD TV
yes the PC to TV will do the video
the $29.95 one looks like the $14 one from Amazon
no matter which one you get, you WILL need a separate cable for sound from PC to TV
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MrWizard
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02/08/12 09:23pm |
Technology Corner
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RE: Streaming from computer to OLD TV
He said the tv has rca jack AV input
He doe not need an rf modulator
Just the video adapter for the video signal and theaudio cable
Even if the tv already had a vga computer input it would still require seperate cables for sound
Computer sound has always been on sperate output
Even high end video cards for desktop pc has seperate audio output
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MrWizard
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02/08/12 04:46pm |
Technology Corner
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RE: Streaming from computer to OLD TV
Pc Audio does not come from the vga plug
For that he needs a mini plug adapter to rca audio snd plug into the external audio port on the laptop
Same place you plug in the head phones
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MrWizard
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02/08/12 01:47pm |
Technology Corner
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RE: Hookups
A 4 wire 240v American system could be used on a 4 wire 50 amp American rv
Do NOT plug any american 120v rv 30 or 50 amp into a 3:wire 250v system
That system does not have neutral and does not supply 120v
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MrWizard
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02/08/12 11:51am |
Tech Issues
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RE: What do you use to clean your lcd tv's, monitors, etc
Windex is fineon Glass
Like crt tube tv
Harmful to any soft screen or hard plastic screen tv
Lcd monitor game boy etc
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MrWizard
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02/08/12 10:29am |
Technology Corner
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RE: Which is better: Higher or lower volt solar panels?
i'm quite sure, that IF some one buys $1 per watt panels,
that there must be some production costs reductions some where ( i don't know what Renoman bought )
panels are rated so they must produce the rated amount
that doesn't mean $1 per watt panels are shade tolerant with bypass diodes on each & every cell
we could nit pik this all winter
as far as amps & wattage,
once your panel voltage choice is high enough that you must use an mppt controller, the actual voltage doesn't matter as long as the controller can handle it, 24v 28v 36v the mppt is going to convert it to 14+v at increased amps
the output will be as close to total incoming power/wattage as the controller can make it
240 watts at 20v is 12amps, 240 watts at 24v is 10amps , 240w at 14v is 17.14amps
and it doesn't make any difference to the controller if the incoming is 20v*12a or 24v*10a
on an RV the resistance losses between the voltages are probably not worth the hassle of figuring it out, buy the panels that are either shade tolerant or IF none are, then buy the least costly panels
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MrWizard
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02/08/12 12:42am |
Tech Issues
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RE: Which is better: Higher or lower volt solar panels?
Hi Mr. Wizard,
I agree. Shade tolerant panels are superior to non shade tolerant--but it is about #24 down the list of reasons to purchase panels.
I dont known where it ranks
I just know that shading one cell or more is not going to vastly chsnge the outpit of new panels
Even you know this but you keep repeating it
Agreedef not all panels are shade tolerant
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MrWizard
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02/07/12 09:19pm |
Tech Issues
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RE: Which is better: Higher or lower volt solar panels?
My panels are parallel
Playing Devils Advocate here
All im saying is the shade loss statement doesnt really hold water when using new shade tolerant panels
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MrWizard
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02/07/12 07:56pm |
Tech Issues
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RE: Which is better: Higher or lower volt solar panels?
The advantage of parallel is shade tolerance. If the panels are in series output drops dramatically from the entire array if just one cell is shaded.
this keeps getting repeated over & over
panels have banks of cells arrranged like banks of 6v batteries
rows of cells in series for voltage, the series rows are paralleled to total the amps
shade tolerant panels with diodes across each cell will loose omly the power from those cells
example my unisolar panels have two rows of series cells,
so one iF one cell is shaded I loose maybe 1/2 volt on one row, the other row continues to put out full power, the row with the shaded cell looses only the one cell NOT the whole row
if these two panels were series, there would be a slight drop, while the drop might be equal too loosing one cell in each panel (current limiting factor)
parallel will create less loss, but loosing one cell does NOT create major loss
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MrWizard
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02/07/12 06:19pm |
Tech Issues
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RE: Cell signal booster, property wide
home connect is simply a cellular device that you connect ANY hard wired OR cordless BASE phone into
it is not a router, you do not use your cell phone, the Home Connect has its own cell phone number,
the amplifier and directional antenna supply the signal to the Home connect
the home connect could be connected to an office desk phone, a princess phone, an all one you bought at Home depot, an old wall phone, it would not make any difference
just plug in a std cordless base (just like you would at home) and carry the cordless around the property
of course you need one with good range
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MrWizard
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02/07/12 05:47pm |
Technology Corner
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RE: Batwing rotating adjustment fell apart
put on the big ring,
then the spring
then the handle
tighten the Allen screw in the handle
either screw came loose due to wear on the a Lu hex shaft
or the plastic handle cracked from age and the screw can't be tighten with out making the break worse
new crank handle about $3
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MrWizard
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02/07/12 03:14pm |
Tech Issues
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RE: Cell signal booster, property wide
but if you used some thing like Verizon "home connect" cell device (which uses residential phones)
you could place it in the box connected to a residential cordless phone and carry the cordless around the property
If you have little to no cell phone signal the Verizon Home Connect would be useless, its not an amp.
maybe I wasn't clear
connect the home connect to the amplifier/booster
then connect the residential phone
no worries about antenna seperation, you carry the residential cordless not your regular cell phone
could also attached an external pa ringer horn/speaker so that you would be alerted to an icomming call by audio tone even if the cordless was to far from the base station
power Max 10,000 square ft of coverage, that equals a square 100fton each side
I think the property involved is much larger than that
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MrWizard
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02/07/12 03:06pm |
Technology Corner
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RE: What do you use to clean your lcd tv's, monitors, etc
100% clear denatured alcohol cut 50-50 with distilled water
I keep a little squeeze bottle ready,
dust with clean cloth wipe with another clean cloth dampen with this mix
No scented rubbing alcohol, no window / glass cleaners
no chemicals besides distilled water and denatured alcohol
used to be available at the drug store, I bought mine at home depot in a pint/16oz can
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MrWizard
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02/07/12 02:51pm |
Technology Corner
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RE: Bonding a generator
this issue "bonding a portable generator" was discussed ad nausea for weeks in the 3000w Chinese generator forum
with the same results as here
it boils down to the bare facts
that unless you have a driven earth ground and bond Both and the generator frame to grd and rv frame to grd ( against code)
bonding the generator frame makes the rv frame part of the electrical circuit and subject to voltage potential above zero volts earth grd
I will never bond the "supposed" neutral of a 120v portable generator to the generator frame
I would rather be exposed to a capacitance of 60v low current in milliamps than a 120v shock from the generator output
real example here: many times I have used generator powered drills or saws or welder on the RV
if the tool failed and shorted out worn wiring , bad switch etc.. it would be a capactive effect of 60v
with the neutral bonded the voltage between hot and frame is 120v
remember your rv sets on tires, unless connected to shore power the frame is not earth bonded, and even then people get tingled or shocked between bare grd and door handle or steps
WHY. ?
because of voltage difference, improper or in Complete earth bonding on the circuits mean the bonded frame is Not at zero volts
bonding the 'neutral' to generator frame, without providing a solid secure buried earth grd per NEC specs for the generator frame, is not a good idea
your opinion may vary
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MrWizard
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02/07/12 01:18pm |
Tech Issues
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RE: Cell signal booster, property wide
weather proof equipment boxes come in all sizes
check your local electrical supply house like "Granger"
I'm not sure about the availability of localized property wide amplifier
but if you used some thing like Verizon "home connect" cell device (which uses residential phones)
you could place it in the box connected to a residential cordless phone and carry the cordless around the property
as you know. cell boosters/repeaters have to have the antennas seperated by distance and the more power and area to be covered the greater the distance , I have a feeling a two part system, similar to what I described is going to be needed
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MrWizard
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02/07/12 11:52am |
Technology Corner
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RE: Hookups
@mustek
that's 120v at a Max of 30amps load
adapters can be used to connect to a smaller 120v circuit
do not connect to any outlet that is more than 120
you can run off a 120v generator or get a step down transformer
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MrWizard
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02/07/12 10:48am |
Tech Issues
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RE: Checking New Solar panel output with multimeter?
you need a meter that can check DC amps Not milliamps
you need a 10amp setting, usually a seperate spot to plug in the red/positive lead on the meter
first check voltage set the meter on DC set in on the scale higher than the 20+v voc of the meter, 200>300>600 whatever is the next higher scale
point the panel at the sun and read across the leads
for the amps you will select the 10amp meter mode, and again connect across the leads, do this quickly, do not hold for more and a few seconds, you are doing a dead short reading of the panels amps, in good sun this reading will be higher than the rated charging amps, it should equal or be close to the short circuit amps listed on the panel specs
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MrWizard
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02/07/12 10:22am |
Tech Issues
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