CDC BR8A8-A 8 inch floppy drive pinout and dip switch settings

[Roland Huisman]

Hello Everyone,

I have a CDC BR8A8-A eight inch floppy drive. It's an 230V/50Hz model.
I can not find the information I need to connect the drive. It seems to have
a different pinout and also the power connector is a different model than the 851 models.

I think there has to be an 115V/60Hz model which is the same except the motor.
But a 115V model shall have another model number I think...

Does anyone have technical information about the drive? I think it's DSDD
but I've got no idea how to connect it...

And in which computers were these units used? DEC?





Regards, Roland

 

[Chuck(G)]

CDC OEMed these drives to the general market, as well as to itself. So it's hard to say.

At any rate, here's the manual that covers the entire range--take at look at PDF page 4, which will tell you which features are present on your drive:

http://bitsavers.informatik.uni-stu...69Y_Flexible_Disk_Drive_Description_May79.pdf

 

[Roland Huisman]

Hello Chuck,

Thanks for the document. I can not find my drive model in the list.
But I think the document should help to figure out the pin out.

If anyone can supply the document describing the BR8A8-A drive
than I'm still very interested!

Regards, Roland

 

[Chuckster_in_Jax]

Power connectors should be standard.

try this:

http://www.classiccmp.org/pipermail/cctalk/1997-October/145462.html

 

[Chuck(G)]

Ronald, I gave you the wrong link!

Try this:

http://bitsavers.informatik.uni-stu...03AM_9406_Flexible_Disk_Description_Jun82.pdf

Although the 77618006 isn't listed as a variation in the front, it is listed in the parts list. So I'm very sure that this is the document that you need.

 

[Roland Huisman]

@ Chuck,

Oh wouw! many thanks
Now I can figure out how I can use the drive.

@ Chuckster_in_Jax

Well this drive has an other model power connector.
Also the dataconnector is not the edge type from
the 851 but an 50 pin header model.
But thanks for searching for me!

Regards, Roland