View source for TU70 Magnetic Tape Drive

{{Infobox Tape drive
| name = TU70
| tape density = 800/1600 bpi
| tape speed = 200 ips (Forward/Reverse)<br>640 ips (Rewind)
| transfer rate = 320KB/sec
| size = 31"W x 30"D x 60"H (to base of operator panel)
}}
The '''TU70 Magnetic Tape Drive''' was a 9-track auto-loading [[magnetic tape drive]] sold by [[Digital Equipment Corporation|DEC]]. It was [[Original Equipment Manufacturer|OEMed]] from [[Storage Technology Corporation]]; the STC 3470 model. The TU70 supported 9-track operation at 800 bpi (using [[Non Return to Zero Inverted|NRZI]] encoding) or 1600 bpi (using [[Phase Encoding|PE]]).

For use on the [[PDP-10]], it used a [[TX01 Magnetic Tape Controller]], which in turn was connected to a [[ DX10 Data Channel]], or a [[TX02 Magnetic Tape Controller]], which connected to a [[DX20 Programmed Device Adapter]].

The tape transport utilized a single capstan, with air bearings, and two vacuum columns.

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==External links==

* [http://www.bitsavers.org/pdf/dec/pdp10/KL10/EK-108OU-PD-002_KL10-Based_Physical_Description_Mar77.pdf decsystem10 KL10-Based Physical Description] - the TU70 is covered on pg. PD10/1-39 (pg. 46 of the PDF)
* [http://www.bitsavers.org/pdf/stc/3400/9043_STC_3400_TU70_Maintenance_Manual_Sep75.pdf 3400 Magnetic Tape Units - Field Engineering Maintenance Manual] - covers the 3470

[[Category: DEC Tape Drives]]