Ionizationx: a clean environment is a human right!

Electronics => Electronics => Other => Topic started by: Donaldwfc on November 03, 2009, 02:30:25 am

Title: Oscilloscope
Post by: Login to see usernames on November 03, 2009, 02:30:25 am
I need an Oscilloscope. I'll have to buy one in the near future. (Maybe for Christmas!?)

There are things on this alternator set up that I want to learn about more closely, and then I'll build a solid state set up too.

I am looking for advice, suggestions, tips, and stuff, for what I should be looking for in a scope.

Please, if you have any experience to offer on the subject, let me know!

Here is a picture of Stan's Scope: (1993 Video)
(http://img.photobucket.com/albums/v81/bigbuba/Picture12.png)
Title: Re: Oscilloscope
Post by: Login to see usernames on November 03, 2009, 06:57:13 am
I would Donate you a scope if i could, However I would like to have one to lol. I can not seem to get my feet planted firmly enough on the ground to break down and buy one. I can share this with you, You'll probably fry your first scope some how, it happens. So i recommend you to find a scope for about 40 or 50 bucks from ebay, And, get a high voltage probe if you're going to be testing high voltage.

A DSO or, Digital Storage Oscilloscope you can Reverse, and play back to watch what waves was recorded. The others you just see as you probe, which is ok to. Channels, 1 channel is good if your begging, you will pay for a 2 channel scope dearly. However, there is absulutly nothing wrong with only having a 1 channel scope, I use to have one and there wasn't hardly anything i couldn't do with it. I tested a Lifter, Ufo and it fried it, Others fry theirs threw grounds, I think stevie whent down that road with his.

Older scopes also doesn't show you what freq your probing, the newer ones do.
Title: Re: Oscilloscope
Post by: Login to see usernames on November 04, 2009, 21:47:52 pm
http://cgi.ebay.ca/TEKTRONIX-485-OSCILLOSCOPE-2-TRACE-CALIBRATED-WARRANTY_W0QQitemZ130342079181QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item1e58fe4acd

Comments?
Title: Re: Oscilloscope
Post by: Login to see usernames on November 05, 2009, 00:12:19 am
gotta be careful with them things donald.. the shipping on that item is 200 bucks.
Title: Re: Oscilloscope
Post by: Login to see usernames on November 05, 2009, 00:31:58 am
Ebay Search Command

oscilloscope -clip -probe -cable -kit   

First Results from that command, Cost set to lowest



http://cgi.ebay.ca/Hitachi-V-252-20MHz-120V-Oscilloscope-NOT-DOA_W0QQitemZ260501237251QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item3ca7156e03



AND http://cgi.ebay.ca/LECROY-9354L-500MHz-QUAD-DIGITAL-STORAGE-OSCILLOSCOPE_W0QQitemZ230394555993QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item35a495ee59
Title: Re: Oscilloscope
Post by: Login to see usernames on November 07, 2009, 02:55:01 am
posting these pretty much for me, i'll check back through them as i learn more

http://cgi.ebay.ca/TEK-Tektronix-422-Oscilloscope-Test-Equipment-Lot-A_W0QQitemZ200401516749QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item2ea8dc78cd

http://cgi.ebay.ca/TEKTRONIX-435-1-OSCILLOSCOPE-WORKS-NR_W0QQitemZ140357277873QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item20adf218b1

http://cgi.ebay.ca/OSCILLOSCOPE-TEKTRONIX_W0QQitemZ160375540658QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2557208bb2

http://cgi.ebay.ca/Tektronix-475-Oscilloscope_W0QQitemZ360205457852QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item53ddeb19bc

http://cgi.ebay.ca/TEK-Tektronix-465-Dual-Trace-Oscilloscope_W0QQitemZ200401518473QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item2ea8dc7f89

http://cgi.ebay.ca/TEKTRONIX-TYPE-502A-DUAL-BEAM-OSCILLOSCOPE_W0QQitemZ350272055394QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item518dd76862

http://cgi.ebay.ca/G59508-Tektronix-T922R-Oscilloscope_W0QQitemZ390113605407QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item5ad495371f

http://cgi.ebay.ca/G59505-Tektronix-T922R-Oscilloscope_W0QQitemZ390113605425QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item5ad4953731

http://cgi.ebay.ca/TEKTRONIX-465M-DUAL-CHANNEL-OSCILLOSCOPE-100MHz-NR_W0QQitemZ350273674446QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item518df01cce

http://cgi.ebay.ca/TEKTRONIX-2215A-2215-2CH-60MHZ-ANALOG-OSCILLOSCOPE_W0QQitemZ350274868778QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item518e02562a

http://cgi.ebay.ca/G54163-Tektronix-T922R-Dual-Trace-Oscilloscope_W0QQitemZ330374575414QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item4cebdbf536

http://cgi.ebay.ca/Tektronix-2252-100Mhz-4-Ch-Hard-Copy-Oscilloscope_W0QQitemZ390111469240QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item5ad4749eb8
Title: Re: Oscilloscope
Post by: Login to see usernames on December 04, 2009, 23:20:49 pm
I asked one of my Engineering Professors how I might get a hold of an oscilloscope... there is the Physics Lab, but they might not like me playing with non-school stuff in there. So he showed me this old thing...

He said "I don't know if it works, I never turned it on, all I know is that I saved it from the garbage when the Physics Lab was getting rid of it"


(http://img.photobucket.com/albums/v81/bigbuba/Picture12-2.png)

(http://img.photobucket.com/albums/v81/bigbuba/Picture11-3.png)

(http://img.photobucket.com/albums/v81/bigbuba/Picture10-2.png)

(http://img.photobucket.com/albums/v81/bigbuba/Picture9-2.png)

(http://img.photobucket.com/albums/v81/bigbuba/Picture8-3.png)

(http://img.photobucket.com/albums/v81/bigbuba/Picture7-3.png)

As far as I can tell, it turns on, the fan goes, the vacuum tubes light up and glow, and I did see a small green trace on the screen as I plugged it in.

There are no probes, and no manual. It is a Heathkit Model 10 - 14. It's Huge!

It might be more trouble than it's worth trying to get this thing into operation, I could get a PC based Oscilloscope, I just got a PC from the engineering lab for free too, so that would work as a dedicated PC-Scope.

When I'm playing with the alternator I really just want to see the waveform shape, and maybe a rough count of frequency, and later on I would need more detailed information from a scope.

Does anyone have any advice on Probes?? if I can get some probes I can play around with it and see if I could get a signal to show up.
Title: Re: Oscilloscope
Post by: Login to see usernames on December 05, 2009, 10:49:28 am
Thats a nice piece of antique!
Beautifull!
Of course a pc scope is more usefull because of new options, like making a plot over a certain time periode.
I suggest you take any prope you can find that fits.
With this Meyer stuff its more to get a good impression of what kind of wave you get, but it really doesnt matter if you read 10 or 12 volts or 1.6 or 1.7Kv.
That scope will do fine in the audio range, btw.
I love those old vacuum tubes!

Steve
Title: Re: Oscilloscope
Post by: Login to see usernames on December 05, 2009, 16:32:42 pm
Ebay has dozens of scope probes for around $20 most are 100mhz,they will work fine
Don
Title: Re: Oscilloscope
Post by: Login to see usernames on December 05, 2009, 18:42:44 pm

It was also called Heath and the modell number was not 10 -14 but IO-14... it was produced from 1966 to 1971

Here is a link to someone who got the manual : http://nrwilliamson.tripod.com/HEATHMAN.HTM

And here is one for sale for 10 Dollars : http://washingtondc.craigslist.org/mld/ele/1486144424.html
Title: Re: Oscilloscope
Post by: Login to see usernames on December 05, 2009, 19:20:49 pm
Thank you guys!

I sent an email to the guy with the Manual, also mentioned to him I need probes, hopefully I'll get some info back from him.

I don't know anything about probes, I'll spend a few hours reading about them and see if I can figure them out.

I think it would be kind of neat to get this working. I will keep myself open to other scope options.

Does anyone here run a PC scope? any suggestions?
Title: Re: Oscilloscope
Post by: Login to see usernames on December 05, 2009, 19:41:44 pm
Probes are not very complicated , you connect the + and - to your  little input coax . Your oscilloscope too looks very simple  .Mine has like 50 buttons , half of them I never use , A manual is just too complicated , I played with it and discovered what buttons did what etc ...

Be careful with home made probes , they have inductance and leaves  little kicks and might make you think that theres  something wrong when theres not .

For a free scope that is good . A  PC scope is just pure crap , analog is just simpler to use and better quality .

Title: Re: Oscilloscope
Post by: Login to see usernames on December 05, 2009, 20:08:05 pm
I think this is the kind of probe it uses

(http://img.photobucket.com/albums/v81/bigbuba/337c.jpg)

notice the ends are split, and it plugs into two plugs on the front of the scope.

Now to find some...
Title: Re: Oscilloscope
Post by: Login to see usernames on December 05, 2009, 22:19:04 pm
Dam , now thats something I never saw , a 2 piece probe lol .

Usually they are coax that you just snap in .

You will def not be able to buy one  like that , a home made  one will be good enough for your needs seriously , it  becomes a problem with fast rise/fall squares waves @ 100+ khz and the like  . 

If you were to design circuits and pulsing  devices then you would need a more modern scope , but for checking the waves from an alternator and the VIC  it wont be an issue .
Title: Re: Oscilloscope
Post by: Login to see usernames on December 05, 2009, 22:27:32 pm
Hmm.... how might i find out how to make a home-made probe?
Title: Re: Oscilloscope
Post by: Login to see usernames on December 27, 2009, 20:23:33 pm
Still looking for a scope, posting this for my own reference

http://cgi.ebay.com/TEKTRONIX-2215-60MHZ-2-CH-ANALOG-OSCILLOSCOPE_W0QQitemZ370310436484QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item563838d684

http://cgi.ebay.com/Tektronix-475A-250MHz-Oscilloscope-EXCELLENT-w-CAL_W0QQitemZ250553395024QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item3a56256750

http://cgi.ebay.com/Tektronix-TEK-475-Oscilloscope-EXCELLENT-w-CAL_W0QQitemZ250553404650QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item3a56258cea

http://cgi.ebay.com/Tektronix-2430-150MHz-Digital-Storage-Oscilloscope-2Ch_W0QQitemZ260529002878QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item3ca8bd197e

http://cgi.ebay.com/TEKTRONIX-2236-100MHZ-oscilloscope_W0QQitemZ110474128000QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item19b8c56a80

http://cgi.ebay.com/TEKTRONIX-465-100MHz-2Ch-Portable-Oscilloscope-TESTED_W0QQitemZ250552125575QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item3a56120887

http://cgi.ebay.com/Tektronix-422-Oscilloscope-AC-DC-Battery-Calibrated_W0QQitemZ280443138044QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item414bb6affc

http://cgi.ebay.com/Tektronix-465-DM44-Oscilloscope-CALIBRATED_W0QQitemZ280443001383QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item414bb49a27
Title: Re: Oscilloscope
Post by: Login to see usernames on December 27, 2009, 21:12:31 pm
Here are the characteristics you are looking for .

Analog , good condition . Dont need to be freshly calibrated .

The bandwidth doesnt matter , 100 mhz is finbe .

Since you are gonna be working on a 3 phase system I would consider a 4 channel scope . IMO just get a 4 channel .

the tektronix 2000 series are a famous for their durability and ease to calibrate , even I can calibrate mine  . Thats why they are still expensive and why there is competition on every decent item . Especially with this hot new steorn thing , OU is hot again .

Didital storage is useless , unless you are really geeky and haver a distant lab or something .

Electrojolt has the perfect scope for the job , not too many bels and whilstles and all you need for the price , check his youtube electrojoltman for the model number , I think he got his for like 240$ .

Title: Re: Oscilloscope
Post by: Login to see usernames on December 28, 2009, 04:31:47 am
Thanks for the tips Dankie, I'll look out for something like that, I was also looking into PC scopes, but I bet they would cost $250 too...
Title: Re: Oscilloscope
Post by: Login to see usernames on December 28, 2009, 21:42:12 pm
A pc scope is just not as easy to work with as a big tough piece of 1980's american made hardware .