https://www.ndwiki.org/index.php?action=history&feed=atom&title=195_%28NORD-1_card%29195 (NORD-1 card) - Revision history2026-05-10T16:50:37ZRevision history for this page on the wikiMediaWiki 1.43.8https://www.ndwiki.org/index.php?title=195_(NORD-1_card)&diff=3309&oldid=prevGandalf: Initial page2016-07-16T12:28:39Z<p>Initial page</p>
<p><b>New page</b></p><div>'''195 Duplex Start-stop buffer''', is a card that is used in the [[NORD-1]] CPU.<br />
[[Image:NORD-1 card 195-c.jpg |300px | thumb | Component side.]]<br />
[[Image:NORD-1 card 195-s.jpg |300px | thumb | Solder side.]]<br />
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==Introduction==<br />
The card is made in the [[standard NORD-1 card format]].<br />
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This card was found in the [[NORD-1 Serial 47]] computer at crate position D30 where normally a [[170 (NORD-1 card)|170 duplex buffer card]] is found.<br />
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The card in the NORD-1 serial 47 computer have a serial number of 4 so this is probably a quite late development board for the NORD-1.<br />
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No drawings available at the moment.<br />
==Switches and indicators==<br />
There is a strap field at D14 on this board. There is also a trimmer accessible from the card edge. The function is still unknown.<br />
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==BOM==<br />
This list contains the logic circuits used, passive components are not listed.<br />
* 4 x 7400<br />
* 3 x 7401<br />
* 1 x 7402<br />
* 1 x 7404<br />
* 1 x 7413<br />
* 1 x 7440<br />
* 2 x 7474<br />
* 8 x 74161<br />
* 1 x 74164<br />
* 1 x 74165<br />
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==Reference==<br />
<references/><br />
* Hardware in [[NORD-1 Serial 47]]<br />
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[[Category:NORD-1 hardware]]</div>Gandalf