Micro CoGen.

Microcogen/***/SOMRAD Forums => General Discussion => Topic started by: WGB on January 21, 2010, 02:24:48 PM

Title: oscilloscope
Post by: WGB on January 21, 2010, 02:24:48 PM
Would you gentlemen take a look at this unit?
Keep in mind this will be a learning experience for me.
Critique it if you will.
Sensitivity, sample rate, enough?
Not had much luck on ebay

Thanks

Bill

http://www.electronickits.com/gold/hps10.htm
Title: Re: oscilloscope
Post by: BruceM on January 21, 2010, 02:36:30 PM
I have an earlier model of this, and use it often.  The big drawback as a learning tool is the lack of a second channel.  What about one of the PC-USB 'scopes?  Is that something you could use?

What about this very nice analog scope (3 channels, 100MHz)?

http://cgi.ebay.com/KIKUSUI-COS5100TM-100-MHZ-3-CHANNEL-ANALOG-OSCILLOSCOPE_W0QQitemZ290393695554QQ

It's listed at $129 with a $30 flat rate shipping.  A good deal from a very well rated seller.

Here's one for bargain hunters:
http://cgi.ebay.com/EZ-Digital-OS-5020-Dual-Trace-20MHz-Oscilloscope_W0QQitemZ260541082140QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item3ca9756a1c

$50 plus $25 shipping.  

I did a quick check on PC based 'scopes,  for dual trace you're looking at $350 mininum.  The single channel ones are about $200.  http://www.pc-oscilloscopes.com

The digital scopes have advantages for low frequency data capture ( like AC waveforms and AVRs). The also can be a problem for some high frequency stuff like spikes which they can't see.  

If I had to have one or the other, I guess I'd choose the digital.  I have both- a cheap single channel digital (Velleman) and a dual trace 60MHz Leader analog scope which I got very cheap. I'd use the Leader scope more, but it bothers my epilepsy alot worse than my old Velleman, which has zero switch mode power conversion, no backlight, and no low freuqency magnetics, which are strong in a CRT display.







Title: Re: oscilloscope
Post by: mobile_bob on January 21, 2010, 02:43:10 PM
not sure where you live, but craigslist can be a good place to find a nice 2 channel scope
i got mine a year or so back for 50 bucks locally

bob g
Title: Re: oscilloscope
Post by: WGB on January 21, 2010, 03:42:13 PM
Quote from: BruceM on January 21, 2010, 02:36:30 PM
I have an earlier model of this, and use it often.  The big drawback as a learning tool is the lack of a second channel.  What about one of the PC-USB 'scopes?  Is that something you could use?

What about this very nice analog scope (3 channels, 100MHz)?

http://cgi.ebay.com/KIKUSUI-COS5100TM-100-MHZ-3-CHANNEL-ANALOG-OSCILLOSCOPE_W0QQitemZ290393695554QQ

It's listed at $129 with a $30 flat rate shipping.  A good deal from a very well rated seller.

Here's one for bargain hunters:
http://cgi.ebay.com/EZ-Digital-OS-5020-Dual-Trace-20MHz-Oscilloscope_W0QQitemZ260541082140QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item3ca9756a1c

$50 plus $25 shipping.  

I did a quick check on PC based 'scopes,  for dual trace you're looking at $350 mininum.  The single channel ones are about $200.  http://www.pc-oscilloscopes.com

The digital scopes have advantages for low frequency data capture ( like AC waveforms and AVRs). The also can be a problem for some high frequency stuff like spikes which they can't see.  

If I had to have one or the other, I guess I'd choose the digital.  I have both- a cheap single channel digital (Velleman) and a dual trace 60MHz Leader analog scope which I got very cheap. I'd use the Leader scope more, but it bothers my epilepsy alot worse than my old Velleman, which has zero switch mode power conversion, no backlight, and no low freuqency magnetics, which are strong in a CRT display.










Thanks guys
I jumped on the 129.00 unit.
Good thing I did 3 are gone already.
I'll post a pic when I get it here.
Title: Re: oscilloscope
Post by: AdeV on January 21, 2010, 05:28:20 PM
That's a nice looking 'scope, I think you'll have a lot of fun with it.

A few years back, I landed on an old Telequipment dual-channel analogue 'scope. I've used it a few times, but I'm hoping to get more out of it when I'm (ahem, eventually) putting my Lister electrical system together.

In fact, mine is exactly like this one (http://cgi.ebay.com/TELEQUIPMENT-OSCILLOSCOPE-D54-Dual-Channel-Tektronix_W0QQitemZ360195077636QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item53dd4cb604).
Title: Re: oscilloscope
Post by: mobile_bob on January 21, 2010, 07:16:18 PM
that 129 dollar 3 channel scope looks pretty sweet to me!

:)

bob g
Title: Re: oscilloscope
Post by: BruceM on January 21, 2010, 07:57:42 PM
I was tempted to get one for myself, my Leader scope is only 60MHz.




Title: Re: oscilloscope
Post by: rcavictim on January 21, 2010, 11:19:33 PM
Nice score on the o-scope.  Good looking unit!