Look, A new trick! :)

That wasn't even funny. Idiot.

You Tube is the new eBay.

Any idiot will try to sell anything. And any other idiot will actually buy it.

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Hehehehe.. The Gomer Pyle fat body response is even funnier. The guy is an idiot.

Scroll down further to the 600kV taser experiments.

Ha, I haven't heard Gomer Pyle commented some time now. I use to like watching that show.. :) Wonder if Jim is still kicking around.

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I'll predict what's coming next..

Part II Boiling water in a microwave oven powered by a button cell..

Part III Starting your car with static electricity off a balloon.

Part IV Powering a city with a lemon battery.

Part V Apology video. D from BC

Nope.

My reference was to Full Metal Jacket, however. A different "Gomer".

It was Gomer "fat body" Pyle, the nym given to Lawrence in boot camp by his Drill Sgt.

Have you ever seen an AC fed switch mode PS run from a DC source. It does work, just not typically from a 1.5 V source.

You have to be REALLY careful when making technical statements that are true, but operate only under certain provisos. Such as those being made to non-technical people who wouldn't understand in the first place.

I was asked if you increased the power voltage to an amplifier, will it go louder?

Pondering the prerequisites, requirements and limitations, I tried to give a simple yes/no answer, I said yes.

Later on, I find he had attached his hand-held AM/FM portable radio (powered with a 9v batter), into the mains.

This happened way before the net or especially MeTooTube, but that's something I'd like to see. I don't get to blow stuff up very often so it's always a pleasure when some idiot does it for me.

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D from BC hath wroth:

Close. Try reading some of the 2600 assorted comments to the YouTube video. Most suggest that it works or that they actually tried it. However, there's always a possibility that my kollege edukation, several decades of electronics experience, and my astute guesswork, might be wrong. So, I tried it. AAA battery and two clip leads on my CRT type TV. Nothing. Oh well.

Doing the math, the typical AAA alkaline battery is good for 1.5V at

750ma-hr. Assuming a 100 watt TV load, and being able to fully discharge the battery without a meltdown, that's: run-time = (1.5v * 0.75A-hr) / 100 watts = 0.011 hrs = 40 seconds. So, even if it did work, and the TV lit up, and the battery didn't melt, it would only run for 40 seconds.

At least I'll get to sell thousands of replacement RCA phono cables to all those that actually tried it using the original instructions.

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I'm designing an offline (120VAC) smps supply that will function great off 170VDC to as low as 50VDC(crippled).

About the video... I'm picking on it from a power point of view.

Let's say that tv dissipates 200W for proper function.

P = IV I = 133Amps (Holy crap batman..Get the car jumper cables...)

Let's say the AA has an internal resistance of 1 ohm. Wow! That's 17689Watts of internal power dissipation.

That's around...uhhh... 18 microwave ovens on high.

Dang.! Must be that new low ESR battery technology.. :)

Those AA's will be great for powering arc welders.. :P

D from BC

Just for fun there's also this consideration.. I'm fairly new to smps design but I know this much:

Do tv smps up convert? I'd say ..nooo.. It's probably a down conversion topology... Not all smps topologies do up and down conversion. Let's say it could upconvert from 1.5V...the line fuse would probably blow! Which seems ironic..

Also, if the tv smps could up convert, and it didn't blow a fuse...1.5V probably wouldn't even power up the smps control electronics. The electronics to start the up conversion process would be dead.

D from BC

That's cool. Just a matter of connectors. Wow. Just as wild idea... did they ever try to replace a nuclear power station with an AA battery ? :-)

Rene

On a sunny day (Sat, 17 Nov 2007 19:23:41 -0800) it happened D from BC wrote in :

LOL

Any sizeable SMPS normally starts with a boost converter to perform power-factor correction.

Even so, I rather doubt that you could run it on 1.5V for the reasons you note.

Making such an attachment would NOT "blow stuff up". There would be a single protection device failure (or success depending on one's POV), and a little puff of smoke. No explosion, you FUCKING RETARD.

Considering that each purchase of a CD player, DVD player, portable DVD player, etc. includes such cables, one would assume that no one went out and bought any items, but merely used what was already at hand and in a surplus collection.

As such low input voltages use far more current, as you illustrate below, which can burn traces, our SMPS power supply designs properly kick out/off at/when just over 85 Volts. That way, they still work in Japan at 90V, and they do not endanger the circuitry in other ways when the voltage drops much lower.

The guy appeared to use an LCD display, not a CRT. I think they use considerably less.

Even worse... It was a triple A (AAA) battery, which is an even smaller package.

Of course they do. If it is a CRT, they have to make the anode voltage.

For the LCD displays, they likely jump up a 400 V rail, which is typical for the industry, then down convert all the rail voltages they need to make for the device being powered.

Most do.

The video is obviously a hoax meant to garner many of the responses it did, as well as start discussions in these forums and the like, which it did.

Not very likely that it was real at all. And of course it would blow a fuse... at least the fuse that was originally specified.

Diode drops alone...

It only works with a TRIPLE A battery!

Late at night, by candle light, John Tserkezis penned this immortal opus:

On a previous job a guy connected his 3 V transistor radio to the 24 V bench supply. Hey, it's DC, isn't it? Fun to be had by all and sundry.

- YD.

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