Beam-penetration color CRT, Tektronix DAS 912x (was Re: Nice LAB11 brochure.)

Jon Elson elson at
Sun May 8 11:45:07 CDT 2016

On 05/08/2016 12:24 AM, Eric Smith wrote:
> I got out my Tektronix DAS 9129 logic analyzer mainframe, which uses a
> red/green/yellow beam penetration CRT.  It uses raster scan, whereas
> my other device with a beam penetration CRT, the HP 1338A (also
> red/green/yellow) is a vector (X-Y) display.
> I'm pleased to find that the 9129 passes self-test and the display
> works. Unfortunately I do not have any logic analyzer acquisition or
> pattern generator modules for it, so other than admiring the pretty
> display, it's only useful as a boat anchor.
There is a LOT of Tek logic analyzer gear on eBay.  Some of 
it goes fairly cheap, the older it is the cheaper.
You can likely find the right acq modules within a month.  
The 91xx is REALLY old, too, so should cost more to ship the 
modules than the price for the units themselves.


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