[rescue] DEC KA730, was Re: Electronics Recycling Day

Michael Thompson michael.99.thompson at gmail.com
Wed Nov 18 19:27:42 CST 2009

> Not only is the hardware to run TOPS-10 (or TOPS-20, or ITS, for that
> matter) rather scarce, it'd be cost-prohibitive to power it up. IIRC,
> a KL-10B with MH10 external memory (256KW per 30" wide cabinet,
> minimum 4 required for full 4-way memory interleaving), an RP06 drive
> or two (176 MB each), a TU72 tape drive plus TX10 controller, and an
> LP07 line printer  requires easily 200+A of three-phase 208V power.
> The CPU itself uses a 100A 3-phase 208V connector.
A KS-10 will run TOPS-10, TOPS-20, and ITS. With 512KW of RAM and an RP06
disk the total power consumption is about 3 kW. Mine costs about $0.45/hour
to run without A/C, so I don't run it often.

Michael Thompson

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