HP 7970E - interest to split?

Anders Nelson anders.k.nelson at gmail.com
Thu Sep 28 22:57:05 CDT 2017


Update: I bought the Kennedy 9800 as it pushed all my buttons at once.

Now I'm looking for 8" mag tapes/reels that will fit! Anyone know where I
can find these, maybe 3pcs? I could laser-cut some frosted acrylic or
machine some frosted polycarbonate I suppose but I'd rather just buy it,
plus that would include a dust cover.

On a related note my plan is to make a USB-based, Pertec-compatible
controller for it. Not sure how SimH connects with peripherals so I'm
/very/ eager to talk with someone familiar with its workings. I'll also
release all the board files and firmware as open-source. Timeline as always
is completely unknown, though I do have a now-vested interest in making it
work.

Be well!

On Tue, Sep 26, 2017 at 10:42 PM Anders Nelson <anders.k.nelson at gmail.com>
wrote:

> Well there goes my evening, thanks Chuck!
>
> --
> Anders Nelson
>
> +1 (517) 775-6129
>
> www.erogear.com
>
> On Tue, Sep 26, 2017 at 10:09 PM, Chuck Guzis via cctalk <
> cctalk at classiccmp.org> wrote:
>
>> On 09/26/2017 06:45 PM, Anders Nelson via cctalk wrote:
>> > Cool, is there documentation available for this formatting and
>> > error-check/correction algorithm and structure? I'd like to take a look!
>>
>> A good place to start is the HP "Introduction to Magnetic Tape" in
>> bitsavers:
>>
>>
>> http://bitsavers.informatik.uni-stuttgart.de/pdf/hp/tape/MVD-014_introToMagTap_Apr71.pdf
>>
>> --Chuck
>>
>>
> --
--
Anders Nelson
+1 (517) 775-6129
www.erogear.com


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