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From: Don Y <blockedofcourse@foo.invalid>
Newsgroups: sci.electronics.design
Subject: Re: Low spec 'scope.
Date: Wed, 28 Aug 2024 08:32:46 -0700
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On 8/28/2024 7:47 AM, Martin Brown wrote:
> On 28/08/2024 08:39, Liz Tuddenham wrote:
>> The recent thread on high-end oscilloscopes has reminded me of a project
>> that I shelved some years ago and might be due for resurrection:  I am
>> looking for a real-time display about 3" x 4" that can behave as an X-Y
>> oscilloscope with a bandwidth of about 100 Kc/s; a flat panel would be
>> ideal.
>>
>> Currently I am using an actual X-Y oscillocsope to monitor the output
>> from a stereo gramophone cartridge, which allows me to check historic
>> discs for damage or faulty recording geometry.  The tube is about 14"
>> long, which means it has to be a standalone shelf unit and I can't build
>> anything like it into portable equipment.
> 
> I think that Daqarta software can probably do about what you want using the PC 
> stereo soundcard to digitise X & Y. 100kHz bandwidth might be pushing it but it 
> should be fine for audio up to 20kHz.

Does it *simultaneously* sample each channel?  Or, toggle between them?

The advantage would be that you could locate the data acquisition
hardware separately from the (COTS) display.