Overview

The TD8E is a single board OMNIBUS controller for 1-2 TU56 drives.

Notes

Bootstrap

To bootstrap the TD8E TU56 Dectape Drive 0
Starting from Addr 7300
1312
4312
4312
6773
5303
6777
3726
2326
5303
5732
2000
1300
6774
6771
5315
6776
0331
1327
7640
5315
2321
5712
7354
7756
7747
0077
7400

Then hit clear switch and then run from address 7300

(Source: http://www.pdp8.net/interface/td8e_boot.shtml)

Documents

• DEC External Options Maintenance Manual (vol3)

External Links

• The TD8E DECtape control interface (TIF, Highgate PDP-8 site)
• TD8-E DECtape Formatter, December 1971 (TIF, Highgate PDP-8 site)
• TD8E DECtape Copy User’s Manual, May 1972 (TIF, Highgate PDP-8 site)
• M868 CAD diagram (ZIPed Eagle CAD file, so-much-stuff.com)