View source for Data General 6039 Dual 8in Floppy Drive

{{InfoboxDevice|Picture=DataGeneral6039 OpenLid-Running.jpg|Manufacturer=Data General|Device Category=Floppy Drive|Model Number=6039|Removable Storage=8in SD SS Hard Sectored Floppy Disk|Power Connector=Hardwired Mains}}

The [[Data General microNOVA]] uses a unique bus that made it incompatible with existing drives like the 6030. The drive control board in the 6039 doubles as the interface board and connects directly to the backplane.

The 6039, and presumably the 6030, uses '''hard sectored''' 8 in single sided floppy disks. Several Data General documents state that the drive would be compatible with IBM 3740 floppy disks which would be ''soft sectored''. From the testing I've been able to do so far I have not been able to make soft sectored disks work.

The floppy drives in the 6039 are [https://bitsavers.org/pdf/cdc/discs/floppy/77834769Y_Flexible_Disk_Drive_Description_May79.pdf CDC BR803E] . 

==Examples==
{{ExampleDetails|Condition=Working|Serial Number=3938}}

== Card Views ==

=== 6039 Main Logic Board ===
{| class="wikitable mw-collapsible mw-collapsed"
|+
|{{ImageCompare|Picture Left=DG6039Logic top-frontlit.jpg|Picture Right=DG6039Logic bottom-frontlit-flipped.jpg|Picture Width=1600}}
|-
|{{ImageCompare|Picture Left=DG6039Logic top-backlit.jpg|Picture Right=DG6039Logic bottom-backlit-flipped.jpg|Picture Width=1600}}
|}

=== Control Data BR803E Floppy Drive Logic Board ===
{| class="wikitable mw-collapsible mw-collapsed"
|+
|{{ImageCompare|Picture Left=Cdcbr803e top-frontlit.jpg|Picture Right=Cdcbr803e bottom-frontlit-flipped.jpg|Picture Width=1600}}
|-
|{{ImageCompare|Picture Left=Cdcbr803e top-backlit.jpg|Picture Right=Cdcbr803e bottom-backlit-flipped.jpg|Picture Width=1600}}
|}

== Repairs - Modifications ==

=== 2025-02 ===

* Reformed capacitors in power supply
* Began using unit for first time

=== 2025-03 ===

* Issue related to writing discovered with right drive. Debugging is ongoing.
** Issue disappeared during attempt to debug. Potentially related to loose connection, unable to proceed with further diagnostics



== External links ==