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7000 series readout system: Difference between revisions
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* [[155-0027-00]] R-6 Character generator (Special Alpha U N L Z Y P F J Q D) | * [[155-0027-00]] R-6 Character generator (Special Alpha U N L Z Y P F J Q D) | ||
* [[155-0038-01]] D/A converter | * [[155-0038-01]] D/A converter | ||
===Analog-ROM Readout Board=== | |||
[[File:Tek-7000-readout-board.jpg|600px|Typical readout board (from [[7904]] built in 1981)]] | [[File:Tek-7000-readout-board.jpg|600px|Typical readout board (from [[7904]] built in 1981)]] | ||
===EPROM-based Readout Board=== | |||
Towards the end of the 7000 series lifespan, in the 2nd half of the 1980s, a re-designed readout board, | |||
Tek part number 670-8622, was used which is based on a 2732 EPROM instead of Gilbert's analog ROMs, | |||
e.g. in the [[7904A]]. Some of the Tek-made readout ICs like the timing generator were still used in this version. | |||
The number of display points was increased to up to 16 per character. The presence of this board can be detected | |||
from the outside by looking at the readout characters - for example, the "V" in the classic board has just two | |||
straight lines, whereas they are angled in the digital version. | |||
==Literature== | ==Literature== | ||