My NEW Oscilloscope

Found my NEW Oscilloscope which I will be buying within the next few months and for an entry level scope is a darn good price IMO

I will be upgrading to The SDS6062 60MHz, 10Mpt, 2-Ch Oscilloscope

Following video review compares it against my old scope which is the PDS 5022s 25Mhz, 100MS/s, 2-Ch Oscilloscope

Thanks for looking
      [shadow=grey,left]w00d[/shadow]

      [youtube]KiY9R93XA1g[/youtube]

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EDIT: Teh Added Value, YouTube Tutorials by the same guy that did the above review. If thinking about buying a O-Scope for yourself have a look at the video's as there more about buying than using

• Oscilloscope Tutorial Part 1
• Oscilloscope Tutorial Part 2
• Oscilloscope Tutorial Part 3

Wow wOOd, that's a pretty sweet scope and the price is right.  I especially like the deep memory and big color screen.  I thought color screens were just a gimmick until I owned one.  Very nice!  I wonder how many of us guys on here have a scope?

...Tiger

hehe, I'm all excited I can't wait to get it ...

The screen compared to my old one is just fantastic, the screen was the short coming with my old scope which was approximately the same price when I bought it. The screen resolution on the old scope with it's shoddy viewing angles wasn't the greatest.

Like the review says "If you can't SEE it you can't FIX it"

But maybe there will be one other who owns a scope here if they buy my old scope, hoping to sell it to offset the price of the new one if only a little

And yes owing a scope is the way to go, I've learned so much more about electronics than I could have by not owing one. Given the prices of scopes these days it's easy or at least easier to justify the cost

A few photo's of my old scope, here and here

Here some more video by the same guy that did the above review and the three tutorials. Interesting video's and the guy is very well spoken thus a good teacher IMO. Anyway have a look and judge for yourself

http://www.youtube.com/user/Afrotechmods

For example --->

[youtube]GSzVs7_aW-Y[/youtube]

Hey thanks Wood for add this video. I was starting to look for this exact information for adding a USB charger to a product I make. I thought the 7805 would work, but was not sure about the Caps.

Your welcome PP but know you need to keep an eye on what your putting in to your battery by charging this way ... As I'm sure you know you know overcharging is NOT good for any battery but especially so for LiPo's ... If only for the our searcher's and lurkers it had to be said

I like to use the 5v Linear Voltage Regulator to drop down the voltages to one of my Tail Servos, the my best Cyclic Servos are best run at 6v or even 8v for max speed and torque but my Futaba s9257 Tail Servo needs a regulated 5v, well no more than 5v or I risk burning it out. These regulators are great for that JOB. LOL, it's a small BEC for just one servo!

[size=1.1em]    [shadow=grey,left]w00d[/shadow]

[/size]EDIT: Here one I use on my Breadboard[size=1.1em]

   
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Wouldn't something that has a wall transformer charger be able to take voltage all the time? Like a cell phone? Unless you are talking about direct charging a battery all on it's own?

It not the voltage or what it can take although that is important is just they (direct charging) don't monitor what's being put in nor do they detect when the charge is complete, so it's easy to overcharge. Need monitor the charge yourself by eye and shut-off when you see the battery is full, for lack of a better way to say it.

PP - Things like cell phones and most anything with Li batteries can remain on the charger indefinitely.  That's because Li batteries require both constant voltage and constant current charging.  Back when everything was NiCad or NMH that was definitely not the case.  Generally those chargers only had current limiting so if you didn't watch the time, you could over charge and damage the batteries.  From that they went to smarter chargers that switched to trickle mode after a bit so they had less tendency to overcharge.  Most modern chargers now have a different way to detect full charge and are more intelligent about switching to trickle.  With non Li batteries, you still want to get them off the charger as soon as practical after charging.  For cell phones, laptops, and the like you could leave them on forever, but I still take mine off when I can for fear of a malfunction.

I watched that regulator video after your comments and found it be a good introduction.  However, from an engineering standpoint, it oversimplifies three terminal regulators a bit.  The 78xx series they mainly talked about is the most forgiving in terms of design.  The 78's were the "original" three terminal parts and consequently are still among the most popular today.  Some of the newer and more efficient regulators like the low dropout parts are MUCH more particular about the capacitor selections.  Not only do they generally require a higher capacitance for stable operation, but they also have stringent requirements on the characteristics of the capacitors you use (mainly ESR).  Unless you use the 78xx series, you will want to be really careful to read the data sheets for specific part requirements and to some extent even the layout.  LDO's like to become unstable if you let them.  You may also have other bypass considerations in your application because of the RF.  Still a simple project, but it will require some thought.

You mentioned adding USB charging to "a product you make".  Is that the one you showed me?  If so, do you have a plan for how you are going to get from the 5 volts of the USB port to the voltage needed by your transmitter batteries?  You're going to have to be really careful how you load the USB port.  Also note that many USB ports require USB communicatioins to output the full USB power output (500ma).  Just some things to think about.  All part of the fun! 

...Tiger

Thanks for the info Tiger, yes I would like to add this to what I showed you. Basically what I have is series connected alkaline batteries to make 13 volts as my power supply (less volts as they run down) and I need to make 5 volts like what comes out of a USB port so someone can charge thier phone out in the woods off the AA battery pack. This should do the trick.

How about this:
http://www.duracell.com/en-US/product/instant-usb-charger.jspx

Oops - Looks like I misunderstood the direction of the charge in the last comment.  I thought maybe you were talking about charging the Tx batts from some USB port like a computer.  That's a little messy.   For charging a phone or something from the 13v the 7805 in a TO-220 is probably the best option since you don't care about the dropout voltage and the part is really cheap.  You still might want some RF bypassing on the input and output to keep the regulator from going nuts if you transmit while charging.  To be somewhat USB compliant you would also need 500ma current limiting, but you can probably get away without it.

...Tiger

To ALL who have experienced the Blue Smoke of Death we salute you

    [youtube]JCPXckfT-6g[/youtube]