Shugart Model 801 R Industry Std 8 inch floppydrive with modern interface VINTAGE! - Computer

Model 801 R Industry Std 8 inch floppydrive with modern interface VINTAGE!
with printed out manual included!

not tested ,sold as is ,will be well packed

When you are building a shugart in an external enclosure:

There are three things you need to connect:

1. AC: The 801 takes a direct 110V (or 220 depending of course) AC mains connection for the motor into the three-connector AMP socket at the rear. This powers only the spindle motor, which runs constantly. You can rig this up yourself from an old power cord and (ideally) the correct mating AMP connector.

2. DC: You'll need +24V and +5V for the 801, and depending on which variant it is, you will also need -5V. These DC supplies come through a 6-pin AMP socket, also at the rear (mounted on the PCB). You can roll your own DC supplies with various bits of off the shelf hardware, but the shortest path may be getting one of these from dbit . If you pair this with a PC power supply, you should be able to drive the DC rails, including the odd -5V if your drive needs it. I have heard you can probably run this board off of one of the little Pico ATX PSU boards, but I don't have experience with them.

3. The data connection itself is a 50-pin Shugart (obviously) interface. The good news is that this is the original implementation of the Shugart floppy disk interface standard, which essentially all PC floppy drives used afterwards, so you can talk to Shugart 8" drives with a lot more modern hardware. (That's not true of most other 8" drives, which are mostly stuck in 1970s-land.) The bad news is that your drive has a 50-pin edge connector and the standard since then is a 34-pin IDC plug. There are multiple off the shelf adapters. I use this one:
https://www.tindie.com/products/siliconinsider/8-floppy-disk-interface-50-pin-to-34-pin-adapter/
The DBIT site linked above also sells a similar, somewhat more sophisticated product that does this cable adapting.

Then you'll need whatever else on your modern PC (or I guess vintage system!) is required to talk to the drive, but that's just whatever project you're working on! There are about a zillion jumper-able options on the Shugart 801 PCB, and you'll need to set them to make sense with your application, which can require some guesswork, but the drives in my experience will come back to life OK. You will probably need to clean the head and work the stepper motor shaft back and forth to free up the mechanism before it will reliably seek.

Here's the "OEM Manual" which has the pinouts and diagrams and power requirements for the 801.