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Nicolet 526: Difference between revisions
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The '''Nicolet 526''' is a signal averager that | The '''Nicolet 526''' is a signal averager that is used in a modified OEMed [[5110|Tektronix 5110]] ([[5103N]]/[[D10]]) mainframe. | ||
The modifications performed by Nicolet include fan cooling via the bottom panel of the scope, | The modifications performed by Nicolet include fan cooling via the bottom panel of the scope, | ||
and a 12-pin connector on the rear panel of the scope, connected to the interface board, connector J604. | and a 12-pin connector on the rear panel of the scope, connected to the interface board, connector J604. | ||
Mechanically, the Nicolet 526 is a three-bay 5000-series plug-in. | |||
It mates with the center-bay plug-in connector. | |||
The Nicolet 526 is made of four boards and a backplane. | |||
Connection to the Tektronix mainframe is done via thee backplane. | |||
The four boards are: | |||
* ADC and Register | |||
* Address | |||
* Control | |||
* Memory | |||
The design makes heavy use of 7400-series digital logic in DIP packages. | |||
The printed circuit boards are two-layer. | |||
The memory is an array of Fairchild 2102DC MOS 1k x 1 static RAM ICs, DIP, soldered in place. | |||
The wires connecting the backplane board on the 526 to the mainframe interface connector on the 526 are labeled: | The wires connecting the backplane board on the 526 to the mainframe interface connector on the 526 are labeled: | ||