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As we all know, National Semiconductor had been assimilated ten years ago and the Borg soon adopted a policy of pretending that their archenemy had never even existed in the first place. National's website went down, and with it a wealth of documentation.Some of those documents have been assimilated and continue to be available, but in addition to defacing them with their logo, Borg Corporation also removed many part numbers and package options which they have discontinued over the course of the decade (a common nuisance that applies to Borg's own products too). Even application notes haven't been spared: they edited them to make it look like all of National's inventions were their own, which is not only historically inaccurate but also sloppily executed and leads to absurd statements like "OP07 has been discontinued by Borg Co", which of course isn't true at all. Unfortunately, I'm not aware of anyone having preserved the full library of National's documentation as it stood in 2011, but there are sources that come close.1. The Internet Archive.These guys scrap and archive lots of random websites, and they appear to have copies of most files from national.com. Probably the most convenient way of downloading documentation is going to http://web.archive.org and requesting the desired PDF file directly. The URL formats used by National are shown below, where XX is the first two letters of the part number, YYYYY is the full part number, and NNN is the application note or linear brief number.Code: [Select]http://national.com/ds/XX/YYYYY.pdfhttp://national.com/an/AN/AN-NNN.pdfhttp://national.com/an/LB/LB-NNN.pdfExamples:http://web.archive.org/web/*/http://national.com/ds/LM/LMC660.pdfhttp://web.archive.org/web/*/http://national.com/an/AN/AN-A.pdfhttp://web.archive.org/web/*/http://national.com/an/LB/LB-17.pdfMany files are archived in several versions. Pick whichever you like most, but don't bother with anything dated 2012 or later - these are redirects to borg.com, 404 errors or other garbage.2. Datasheet archive websitesThey are usable and there is many of them. Worth trying, but sometimes you will find "assimilated" versions, very old versions, low quality scans of databooks, PDFs with advertisements of part distributors, maybe even malware and viruses 3. The Bitsavers archive (old databooks)http://bitsavers.org/components/national/_dataBooks/This site is a huge archive of documentation related to electronics and early computers. They have scans of complete databooks from National and many other manufacturers. These are monsters with hundreds of pages and tens of megabytes, but sometimes the only source available when it comes to very old parts, discontinued long before National had a website and PDF datasheets.
http://national.com/ds/XX/YYYYY.pdfhttp://national.com/an/AN/AN-NNN.pdfhttp://national.com/an/LB/LB-NNN.pdf
The General Radio Corp. Experimenters have a wealth of info on fundamentals and instrument concepts.https://www.ietlabs.com/genrad/experimenters
Also from bitsavers, the "blue book" Linear Applications Handbook and many others from National Semiconductorhttps://archive.org/details/bitsavers_nationaldaLinearApplicationsHandbook_106847051https://archive.org/details/bitsavers_national
Apex Operational AmplifiersDocumentAN01 General Operating ConsiderationsAN02 Optoelectronic Position ControlAN03 Bridge Circuit DrivesAN05 Precision Magnetic DeflectionAN06 Applying the Super Power PA03AN07 Programmable Power SuppliesAN08 Optimizing Output PowerAN09 Current LimitingAN10 Op Amp Output ImpedanceAN11 Thermal TechniquesAN13 Voltage to Current ConversionAN14 Power Booster ApplicationsAN16 SOA Advantages of MOSFETSAN17 Wideband Low Distortion TechniquesAN19 Stability for Power AmplifiersAN20 Bridge Mode Operation of Power AmplifiersAN21 Single Supply Operation of Power AmplifiersAN22 SOA and Load LinesAN23 Heat Sinking Options and Techniques for Thermally Enhanced SMT PackagesAN24 Brush Type DC Motor DriveAN25 Driving Capacitive LoadsAN26 Parallel ConnectionAN28 Proper Analog Wiring of Power AmplifiersAN31 Basic Op Amp Theory and PracticeAN43 Accessories InformationAN44 Driving Piezoelectric ActuatorsAN47 Techniques for Stabilizing Power Operational AmplifiersAN48 Increasing Output Swing in Power Operational AmplifiersAN52 High Voltage Current BufferAN53 External Current Limit for Apex Power Op AmpsAN54 Printed Circuit Board Layout for Linear Switching AmplifiersAN55 Power Supply Bypassing for High-Voltage Operational AmplifiersAN56 Ultra High Voltage Unity Gain BufferAN57 Apex Inkjet Printhead Driver Power DissipationAN59 Measurement of Thermal Resistance of Power MOSFETs in Open Frame AmplifiersAN61 Bandwidth for Power Amplifiers Crash CourseAN65 Amplifier Gain Error and Loop Gain Example Apex Reference ProductsDocumentAN04 Precision DC References and System AccuracyAN12 SWR200 Sine Wave Reference Ideas Apex PWM AmplifiersDocumentAN01 General Operating ConsiderationsAN11 Thermal TechniquesAN16 SOA Advantages of MOSFETSAN30 PWM BasicsAN33 Spice Model and PWM Amplifier ApplicationsAN43 Accessories InformationAN45 Driving 3-Phase Brushless MotorsAN46 3-Phase Switching Amplifier – SA306-IHZAN49 Jumper Configurable 400 Watt+ DC-to-DC Converter Fulfills Buck-Boost and Motor Drive RolesAN50 Optimizing Power Delivery in PWM Motor Driver ICsAN51 Thermal Modeling of Power Devices in a Surface Mount ConfigurationAN58 Parallel PWM AmplifiersAN63 Methods of Commutating 3-Phase Motor DriversAN64 Power-Thermal Modeling of 3-phase Switching Amplifiers
Volume 1 - Radar System Engineering; Louis Ridenour; 1947 Volume 2 - Radar Aids to Navigation; John Hall; 1947 Volume 3 - Radar Beacons; Arthur Roberts; 1947 Volume 4 - LORAN, Long Range Navigation; J.A. Pierce, A.A. McKenzie, R.H. Woodward; 1948 Volume 5 - Pulse Generators; G.N. Glasoe, J.V. Lebacqz; 1948 Volume 6 - Microwave Magnetrons; George Collins; 1948 Volume 7 - Klystrons and Microwave Triode; Donald Hamilton, Julian Knipp, J.B. Horner Kuper; 1948 Volume 8 - Principles of Microwave Circuits; C.G. Montgomery, R.H. Dicke, E.M. Purcell; 1948 Volume 9 - Microwave Transmission Circuits; George Ragan; 1948 Volume 10 - Waveguide Handbook; N. Marcuvitz; 1951 Volume 11 - Technique of Microwave Measurements; Carol Montgomery; 1947 Volume 12 - Microwave Antenna Theory and Design; Samuel Silver; 1949 Volume 13 - Propagation of Short Radio Waves; Donald Kerr; 1951 Volume 14 - Microwave Duplexers; Louis Smullin, Carol Montgomery; 1948 Volume 15 - Crystal Rectifiers; Henry Torrey, Charles Whitmer; 1948 Volume 16 - Microwave Mixers; Robert Pound; 1948 Volume 17 - Components Handbook; John Blackburn; 1949 Volume 18 - Vacuum Tube Amplifiers; George Valley Jr, Henry Wallman; 1948 Volume 19 - Waveforms; Britton Chance, Vernon Hughes, Edward MacNichol Jr, David Sayre, Frederic Williams; 1949 Volume 20 - Electronic Time Measurements; Britton Chance, Robert Hulsizer, Edward MacNichol Jr, Frederic Williams; 1949 Volume 21 - Electronic Instruments; Ivan Greenwood Jr, J. Vance Holdam Jr, Duncan MacRae Jr; 1948 Volume 22 - Cathode Ray Tube Displays; Theodore Soller, Merle Star, George Valley Jr; 1948 Volume 23 - Microwave Receivers; S.N. Van Voorhis; 1948 Volume 24 - Threshold Signals; James Lawson, George Uhlenbeck; 1950 Volume 25 - Theory of Servomechanisms; Hubert James, Nathaniel Nichols, Ralph Phillips; 1947 Volume 26 - Radar Scanners and Radomes; W.M. Cady, M.B. Karelitz, Louis Turner; 1948 Volume 27 - Computing Mechanisms and Linkages; Antonin Svoboda; 1948 Volume 28 - Index; Keith Henney; 1953