PC Oscilloscope

[PostScriptum]

Has anyone had any success making a home-made oscilloscope out of a PC and are they worth doing? I have and old laptop that I could make good use of.

[gavpk]

also be interested in this

[beer4life]

Has anyone had any success making a home-made oscilloscope out of a PC and are they worth doing? I have and old laptop that I could make good use of.

G'Day Cobber,
Aarrhh, what fond memories.
Many of the above and others published circuits for home built oscilloscopes.
I even had an en ex-disposal CRT used as a trapezoid pattern modulation monitor for my 150 Watt GO9 Transmitter.
The limitation of using a monitor or TY, is that they are virtually only good for audio/VLF.
Sheesh, I could waffle on for hours. CROs are far more versatile and available these days, so why bother?
In those days they were expensive and like hens' teeth.
Is it the challenge of turning back the clock?

Kindest Regards, " The Druid "....

[PostScriptum]

Info I've googled so far below, but I'd be interested in hearing peoples experience/opinions with this...





(Download Soundcard Oscilloscope - free for non-commercial use)

[PostScriptum]

G'Day Cobber,
Aarrhh, what fond memories.
Many of the above and others published circuits for home built oscilloscopes.
I even had an en ex-disposal CRT used as a trapezoid pattern modulation monitor for my 150 Watt GO9 Transmitter.
Sheesh, I could waffle on for hours. CROs are far more versatile and available these days, so why bother?
In those days they were expensive and like hens' teeth.
Is it the challenge of turning back the clock?

Kindest Regards, " The Druid "....

I think you are suggesting I tinker with old CRT screens? I am actually referring to using the sound card line-in and custom software or even just plain sound recording software based on the line voltage I think is 0.7v p-p??

[beer4life]

also be interested in this

Well, if you insist, here is the easy way, without getting your fingers burnt.


Kindest Regards, " The Druid ".

[gavpk]

Thanks PS and B4L will have a read.

cheers

[PostScriptum]

Well, if you insist, here is the easy way, without getting your fingers burnt.


Kindest Regards, " The Druid ".

Nice one I'll have a play with it some time.

[Ramjet]

If you have an application where you only need to analyse audio frequencies, then by all means, give the info in the links you have posted a shot. If you want to do more in-depth stuff, I would recommend a second hand scope. Even 20 or 30 year old Tektronix scopes rock and they are so cheap now. Anyone got any leads for suppliers? They come up on eBay every now and then for reasonable money – just a thought.

[Uncle Fester]

Has anybody bought one of these?




I would be interested if they are actually work properly or are rubbish.
I have seen something very similar on European websites for a hideous price.

There is also a version with 200MHz bandwidth and 9bit resolution but the sample rate of 200MS/s sounds then very sus to me.