PEARL, INC. - LITERATURE ARCHIVE




 

 

AUDIO NOTE SERIES




150 KB

16 Pgs.

AN 0.3 - The Index to the PEARL Vacuum Tube Technology Archive
This document is updated approximately monthly as new items are uploaded to our site. All downloads presently available can be accessed through the P
EARL ARCHIVE listings below.

 


298 KB

10 Pgs.

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.

 


14 MB

198 Pgs.

AN 1.3 - PEARL Tube Coolers:
This “P
EARL Tube Coolers and Equipment Reliability” Audio Note provides both a present-day overview and several magazine reviews and an extensive review of the period literature and tube cooler patents.

 

 

1 MB

4 Pgs.

AN 1.5 - PEARL Tube Coolers - A Quick Start Guide:
A guide to the basic theory of operation and installation of our tube coolers

 


151 KB

12 Pgs.

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.

 


76 KB

4 Pgs.

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.

 


1 MB

6 Pgs.

AN 7.1 - Iso-socket Installation Instructions:
The title says it all . . .

 


68 KB

5 Pgs.

AN 8.1 - The Measurement of Microphonic Effects in Vacuum Tubes:
A very informative discussion of microphony

 

 

60 KB

3 Pgs.

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.

 

 

232 KB

8 Pgs.

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 documenting notes been written as yet.

 


356 KB

10 Pgs.

AN 23.2 - The PEARL SC 280 Monoblock - Notes on a Work in Progress:
An Update to AN 23.1

 

 

 



 

MISCELLANEOUS DOWNLOADS


 

 

This page is posted as something of a precursor to the construction of our site. Here we've made available a number of PDF files that will eventually be available from our site's main navigation page(s). In the meantime, and so that those viewing posts archived on various e-mail list servers will find live links in the future we will keep this page as permanent resource.



PEARL, INC. ARCHIVE OF VACUUM TUBE TECHNOLOGY


Download the Index to the PEARL Vacuum Tube Technology Archive



 

  Volume 1: Power Amplifiers

...

 

Sec. 01

  Amplifier Basics - 16 articles

 

Sec. 02

  Ultra-linear Amplifiers - 24 articles

 

Sec. 03

  Mcintosh Unity-coupled Amplifier - 15 Articles

 

Sec. 04

  Triode Connected Tetrodes - 4 Articles

 

Sec. 05

  Constant Current Output Stages - 4 Articles

 

Sec. 06

  The Williamson Amplifier - 4 Articles



 

  Volume 2: Power Amplifiers - Con't [Section links go directly to server directories]

...


Sec. 07

  Misc. Constructors' Power Amplifiers & Designs - 19 Articles

 

Sec. 08

  Output Transformerless Power Amplifiers - 6 Articles

 

Sec. 09

  Cathode Follower Power Output Stages - 4 Articles

 

Sec. 10

  Advanced Theory and Practice - 4 Articles

 

Sec. 11

  Variable Damping, Positive Feedback and Negative Impedance - 14 Articles

 

Sec. 12

  Single-ended Push-pull Power Output Stages - 5 Articles

 

Sec. 13

  Cathode-biased Power Output Stages - 3 Articles

 

Sec. 14

  Misc. Relevant Articles - 26 Articles



 

  Volume 3: Push-pull Theory & Phase Splitters [Section links go directly to server directories]

...

 

Sec. 15

  Fundamental Phase Splitter Theory - 54 Articles



 

  Volume 4: Voltage Amplifiers [Section links go directly to server directories]

 

...

 

Sec. 16

  Triode Voltage Amplifier Theory - 8 Articles

 

Sec. 17

  Noise in Low-level Input Stages - 15 Articles

 

Sec. 18

  Cascode voltage Amplifiers - 9 Articles

 

Sec. 19

  Cathode Followers - 22 Articles

 

Sec. 20

  Anode Followers - 4 Articles

 

Sec. 21

  Complete Preamp Circuits - 2 Articles

 

Sec. 22

  Misc. Relevant Articles - 27 Articles


 

 

  Volume 5: Feedback Theory & Distortion Measurement [Section links go directly to server directories]

 

 

   

 

Sec. 23

  Basic & Advanced Feedback Theory - 49 Articles

 

Sec. 24

  Distortion Theory and Measurement - 19 Articles

 

Sec. 25

  Achieving Stability in Feedback Amplifiers - 12 Articles


 

 

  Volume 6: Transformers [Section links go directly to server directories]

 

 

   

 

Sec. 26

  Transformer Design Theory - 64 Articles

 

Sec. 27

  Catalogues from Various Manufacturers - 11 Articles


 

 

  Volume 7: Power Supplies [No articles posted as of Dec. 2019]

 

 

   

 

Sec. 28

  Basic Rectification and Filtering - 8 Articles

 

Sec. 29

  Reglator Theory and Application - 22 Articles

 

Sec. 30

  Real-world Power Supplies - 2 Articles


 

 

  Volume 8: Vacuum Tube Theory [Section links go directly to server directories]

 

 

   

 

Sec. 31

  Basic and Advanced Theory - 85 Articles


 

 

  Volume 9: Vacuum Tube Characteristics and Construction [Section links go directly to server directories]

 

 

   

 

Sec. 32

  Vacuum Tube Design and Manufacturing Technology - 28 Articles


 

 

  Volume 10: Misc. Basic Theory [Section links go directly to server directories]

 

 

   

 

Sec. 33

  Misc. Topics of Consuming Interest - 50 Articles


 

 

  Volume 11: Misc. Basic Theory - Con't [Section links go directly to server directories]

 

 

   

 

Sec. 34

  Misc. Topics of Consuming Interest; Con't - 26 Articles


 

 

  Volume 12: Instrumentation Development and Measurement Techniques [Section links go directly to server directories]

 

 

   

 

Sec. 35

  Circuit Layout and Hum Reduction - 12 Articles

 

Sec. 36

  Excerpts from 'The Audio Update' - 10 Articles

 

Sec. 37

  RIAA Network Design - 3 Articles

 

Sec. 38

  Frequency and Phase resopnse of RC-coupled Circuits - 3 Articles

 

Sec. 39

  Attenuators and Swithcing - 9 Articles

 

Sec. 40

  Component Characteristics - 15 Articles

 

Sec. 41

  Misc. Measurement Techniques and Instrumentation - 22 Articles


 

 

  Volume 13: Misc. Topics [No articles posted as of Dec. 2019]

 

 

   

 

Sec. 42

  Data on Misc. Audio and RF Tubes - 21 Articles

 

Sec. 43

  Hearing, Stereo and Assorted related Topics - 29 Articles


 

 

  Volume 14: Misc. Topics - Con't [No articles posted as of Dec. 2019]

 

 

   

 

Sec. 44

  Impedance-mathcing Theory - 12 Articles

 

Sec. 45

  Microhpones, Anechoic, Studio and Playback Environments - 13 Articles

 

Sec. 46

  LPs, Turntable and Tonearms - 27 Articles


 

 

  Volume 15: Misc. Topics - Con't [No articles posted as of Dec. 2019]

 

 

   

 

Sec. 47

  Servo Systems - 4 Articles

 

Sec. 48

  Nomographs - 18 Articles

 

Sec. 49

  Historical and Biographical Interest - 15 Articles

 

Sec. 50

  Classic AM Radios - 7 Articles


 

 

  Volume 16: Textbooks, Seminal Articles and Periodicals of the Era [Section links go directly to server directories]

 

 

   

 

Sec. 51

  Classic Texts - 12 Textbooks, 1 Article - All are OCR-d

 

Sec. 52

  Seminal Articles - No Content

 

Sec. 53

  Periodicals - Look at the 'Preview' pages, they contain downlod links.