[cctalk] Re: How hard would it be to make new dec tape media?

Sun, 02 Nov 2025 12:43:08 -0800 


> On Nov 2, 2025, at 2:55 PM, Henk Gooijen via cctalk <[email protected]> 
> wrote:
> 
>> Bitsavers has the 3M spec for 480 and 481 sandwich tape, I'm not sure which 
>> of these two is what DEC used.  It seems crazy, but it can't hurt to ask 3M 
>> if they still make that stuff. 
>> 
>> paul
>> 
> Getting the tape is one, but who can record the preformatted blocks on the 
> "virgin" tape?
> Henk, PA8PDP

That's easy: any DECtape controller can do that with the help of a simple 
formatting utility.  I even have the source code lying around.

        paul
























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