Vaxstation 3100 of odd sort on epay

Systems Glitch systems.glitch at
Tue May 2 19:38:30 CDT 2017

I keep meaning to stop by the guy's shop in MD and check out some of his DEC stuff. From what I can tell, this isn't TEMPEST shielding, but RF shielding for e.g. lab situations that require a low RF noise floor. It's probably effectively the same as TEMPEST in practice, but seems to lack the gov't certification.


On Tue, 2 May 2017 17:21:28 -0700
jim stephens via cctalk <cctalk at> wrote:

> This might be a tempest or shielded vaxstation?  Anyone speculate or 
> know for sure.
> The vendor may have these mixed in as equivalent to their other 
> vaxstations.  If you search for "DEC vax VS42A-BN"
> you end up back at the vendors listing for the ones with plastic 
> covers.  I didn't turn up any info yet, not hoping to.
> but the thing has what appears to be optical, and a huge connector which 
> may be shielded SCSI on the back.
> I can't tell from the front, but there may be a hatch to allow it to be 
> opened and a floppy inserted, not sure from
> the photos.
> Kind of an interesting device.
> I looped back into the vendors listings to this auction for the plastic 
> topped version, by the way
> It is badged VT-1300 so may not be a vaxstation.  And the other box may 
> be one of the VT-1300's
> that is tempest or shielded.
> thanks
> Jim

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