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Nicolet 526: Difference between revisions
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The '''Nicolet 526''' is a signal averager that is used in a modified OEMed [[5110|Tektronix 5110]] ([[5103N]]/[[D10]]) mainframe. | 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 to the mainframe performed by Nicolet include | ||
* adding a perforated panel for fan cooling via the bottom panel of the scope, | |||
* adding a 12-pin connector on the rear panel of the scope | |||
* connected the 12-pin connector to the interface board, connector J604. | |||
The 526 has its own +5V regulated rail. | |||
An external source of +7V unregulated DC is routed from thee 12-pin rear connector to the mainframe interface board, | |||
and into the plug-in. | |||
An LM323 +5V three-terminal regulator is the source of the +5V rail within the Nicolet 526. | |||
(Even though the input is marked "+7 UNREG" on the board, it should probably be +7.5V minimum, | |||
per the LM323 datasheet.) | |||
Since the LM323 is rated for 3 amperes, it is unlikely that the plug-in sinks more than that from | |||
the "+7 UNREG" input. | |||
Mechanically, the Nicolet 526 is a three-bay 5000-series plug-in. | Mechanically, the Nicolet 526 is a three-bay 5000-series plug-in. | ||