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PEARL's Audio Note Series and Literature Archive |
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With the exception of the actual text on the web-served
pages, all information here available in downloadable form has been converted to
Abode
Systems proprietary Portable Document Format, PDF.
By this means we can provide documents that retain their look and feel across all
OS platforms in widespread use. To read or print PDFs you must install Adobe's free
Acrobat Reader in your machine. This is very straightforward and Acrobat is a stable
application.
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The Audio Note Series |
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| AN 0.2-3 | Introduction and Preface |
xxxKB |
xxxKB |
xxxKB |
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| AN 0.3 | The Index to the PEARL Vacuum Tube
Technology Archive Note that this document is updated approximately monthly as new items are uploaded to our site. All downloads presently available can be accessed through the PEARL Archive listings below. |
MUCH |
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| AN 0.4 | Vacuum Tube Electronics: A Review
of the Major Texts. Scott authoritatively reviews scores of the classic textbooks on vacuum tube theory, implementation, construction and so on . . . . highly recommended Presented here with the permission of Scott Frankland. |
263 KB |
Ditto |
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| AN 1.3 | PEARL Tube Coolers: 28 pages of text, drawings, reviews and ordering information on the well-known PEARL tube coolers. In production for over a decade, this humble, sensibly priced accessory has been sold worldwide to the tune of approx. 150,000 pieces. |
413 KB |
Ditto |
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| AN 1.5 | PEARL Tube Coolers - A Quick Start Guide: A 4 page guide to the basic theory of operation and installation of our tube coolers |
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Etc |
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| AN 2.1.1 | A Little Input on Audio Output Transformers
& Update. Some basic transformer theory and specifications on PEARL's high power, ultra-wide bandwidth output transformers. The Update covers ultra-linear operation implemented with a separate screen winding and regulated, screen power supply. |
153KB |
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| AN 6.2 | Getting the Shake and Rattle Out
of Your Rock and Roll: Suppressing Microphonic Output from Vacuum Tube Gear - Information on microphony in general and PEARL Iso-sockets in particular. |
xxxKB |
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| AN 7.1 | Iso-socket Installation Instructions - The title says it all . . . |
xxxKB |
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| AN 8.1 | The Measurement of Microphonic Effects in Vacuum Tubes - A very informative discussion of microphony |
xxxKB |
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| AN 9.1 | Making Contact with Your Tubes - How to clean the heavy oxides from through-glass pins of tubes using same for connection with socket contacts. |
xxxKB |
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| AN 23.1 | The PEARL SC 280 Monoblock: Notes on a Work in Progress - Although the title does say it all, these notes were written in 1990/2 and although much work has been done since then, no notes documenting that work have been written as yet. |
xxxKB |
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| AN 23.2 | The PEARL SC 280 Monoblock: Notes on a Work in Progress - This is an Update to AN 23.1 |
xxxKB |
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PEARL Archive of Vacuum Tube Technology |
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Download |
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Index: PEARL Vacuum Tube Technology Archive |
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Volume 1 - Power Amplifiers |
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| Sec. 1 | Amplifier Basics, 15 articles | |||||||||
| Sec. 2 | Ultra-linear Amplifiers, |
Sec. 2 Contents. |
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| Sec. 3 | Mcintosh Unity-coupled Amplifier, |
Sec. 3 Contents. |
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| Sec. 4 | Triode Connected Tetrodes, |
Sec. 4 Contents. |
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| Sec. 5 | Constant Current Output Stages, |
Sec. 5 Contents. |
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| Sec. 6 | The Williamson Amplifier, |
Sec. 6 Contents. |
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Volume 2 - Power Amplifiers |
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Miscellaneous Downloads |
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Literature |
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