Recent content by joshuaparkour1

No, none of the software had anything to do with waveform capture. Personal 488(the software included) is just a software library for GPIB communication. It is also supposed to be able to add GPIB devices as DOS devices like working with any peripheral although I get errors trying to add it as a...

Not all 1520s have 1.44mb floppy drives... Mine has the old school 720kb drive.

Be aware you need a floppy drive that's compatible with 720kb floppies assuming you don't have a 1.4 meg drive in the 1520. Most modern floppy drives are NOT compatible with the old format. If you do have a 720kb drive and capable host drive, you can format 1.4mb floppies as 720kb ones with...

Just an update for anyone interested, I was able to get some basic communication using the Grid GPIB device from Shawnerz (thanks again) to a Tektronix 7D20 https://w140.com/tekwiki/wiki/7D20 (Much more powerful than a 222a) running in a 7623A! I will be working on actually running some useful...

Thats pretty cool! I wonder if that would allow me to communicate with my 7D20! The R7912 will take some more work as it is for a different interface and although I fixed its power supply it uses a proprietary digital interface, and the composite video card isn't outputting anything... If you...

I have never seen one in the wild. Could you post pics? Maybe it's possible to create one from off the shelf parts... :unsure:

I was also thinking this might work to convert gpib to parallel for the 1520... If anyone has experience with this, I would appreciate it...

No, the waveform is the previous one shown when the step generator is set at 1X on the 577 as shown in the video clip. When set at a higher speed you can see the individual steps as shown on the saved Grid trace. It wasn't actually that difficult as Tektronix had software (posted above) that...

I was able to get the 222a to communicate with the 1520 using that software. For anyone interested, here is the step generator output for a 577d1.

Never heard of that one before, but I am already rather attached to my 577D1, and I am already getting the tube trace on. BTW it's a 6X5 Tube

To be fair that includes the curve tracer as well but yes. Below it says they will sell the usb device separately for 960$. Based upon where it hooks up it seems as though it just draws off of the CRT control grid for digitization.

Cool! I will check it out These guys on eBay also sell a USB attachment mod but it's too expensive for me to consider (960$!) https://www.ebay.com/itm/303744330135?hash=item46b892a997:g:xckAAOSwxzxf5lrw

NP, I was able to get that terminal software running on my 1520 and printed out some sample waveforms. However, I ordered a breakout box because the rs232 requires a specific pinout in the 222a for actual communication with the scope. I would be very happy to be able to non-destructively add a...

Thanks, but as I mentioned earlier my 577D1 doesn’t have a serial or gpib out and I would need a add on mod (they do exist for usb at least) for the traces to be saved. For the 222 it looks like I would need some software that I have been unsuccessful in finding the analysis software (like...

A bit off topic but anyone where to find DOS Oscilloscope Software that would work on a 286 1520? I have looked a bit but so far, no luck. If anyone is curious that is a tube trace of a 3AU6 tube on a Tek 577D1 which doesn't have a serial port (it's from 1972), but I am hoping to save...