The only thing that gives me the willies about using it now are the 720kB 5.25" floppies. I wish there was as SSD or flash replacement for 'em.
You just need to stock up on media and make lots of copies!
I thought that was an available product, "floppy emulator", pulls images off a USB drive and acts like a floppy drive on the other end.
stock up on media and make lots of copies!
Definitely pre-ATA... I think most CP/M machines used a Shugart-standard interface, no?
... I have 5.25'' floppy disks (some as old as from 1985) and still working OK (only rarely used).
For a backup, I've seen many projects for floppy disk unit (FDU) emulators...
For a backup, either find an old PC motherboard...
If you don't find any, there was a tool named Kermit, for CP/M...
Another option would be to search for existing backups on the Internet...
1st pic is anechoic magnitude and phase vs frequency of a tweeter on a test baffle.
2nd pic is an 3D "waterfall" display (energy vs time vs frequency) of a speaker system.
The only thing that gives me the willies about using it now are the 720kB 5.25" floppies. I wish there was as SSD or flash replacement for 'em.
No idea what methods are used to measure those in the audio industry, so the ways I'll try to measure such params would be one of these:
- either slowly sweep the frequency with a sinusoidal signal while continually measuring the amplitude and phase relative to the source signal (so analog phase and amplitude measurements logged while sweeping the frequency)
- or send a single square pulse, digitize the response waveform with an ADC, then turn the recorded time-domain response into a frequency-domain response with the help of Fourier
For either method, I think a single output signal should be enough, but I've seen on the back panel both sin and cos outputs, so I wonder why does the instrument needs both.
Do you have any hints how the instrument measures, please, or why does it has quadrature outputs?
It is possible... I have seen some folks adapting an interface for SD-CARDS
using a custom based I/O attachment fixture... even possible it they (already have)
are also capable to offer S-100 (Altair 8800)....
Although I have seen this for sale for PCs the Z80 I/O is very close to 8085/8080 if not identical in this particular case.. someone with will and time should be able to interface a Z80...
Those graphics written in Assembly are a work of art..
It is possible... I have seen some folks adapting an interface for SD-CARDS
using a custom based I/O attachment fixture... even possible it they (already have)
are also capable to offer S-100 (Altair 8800)....
Although I have seen this for sale for PCs the Z80 I/O is very close to 8085/8080 if not identical in this particular case.. someone with will and time should be able to interface a Z80...
Will and time, that is the key...
The only thing that gives me the willies about using it now are the 720kB 5.25" floppies. I wish there was as SSD or flash replacement for 'em.
I have a Pick and Place machine that runs Windows 95, and used a 3.25" floppy for data exchange. I got a device mostly sold for use with music synthesizers that makes a USB memory stick (thumb drive) look like a bunch of 1.44 MB floppies. I'm not sure that would work for your 720KB disks, but maybe somebody makes one of these that will do 720K. What I have is the Gotek-SFR1M44-U100.