How to Use, Calibrate, Repair and Upgrade Vacuum Tube Testers

How to Use, Calibrate, Repair and Upgrade Vacuum Tube Testers

by Igor S. Popovich

Paperback

$49.95
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Overview

How to Use, Calibrate, Repair and Upgrade Vacuum Tube Testers

The revival of tube technology in guitar and audiophile amplifiers has also led to the renewed interest in vacuum tube testers and their ultimate purpose, testing and matching of audio tubes. The prices of vintage tube testers have risen to levels unimaginable just a few years earlier. Tube testers their owners could not give away then are now fetching many hundreds and some even thousands of dollars.

Due to high prices of both NOS and currently produced tubes, audiophiles and guitar players want to test & match their own tubes to make sure they’ve got what the sellers promised, and to see if their old tubes needed replacing in the first place.

If you are a technician who fixes amps or tube seller, then a reliable and accurate tube tester will be beneficial to your business and will improve your bottom line. Declared results of meaningful tests will help you get a higher price for your tubes and repair or tube matching services.

Tube testers and tube testing are so misunderstood that buying a wrong tube tester, using it to do things it was never designed to do, damaging or even destroying tubes it was supposed to test, are just some of the consequences of such ignorance, myths and misconceptions.

Tube testers suffer from false positives and false negatives. A false positive is when a perfectly good tube is tested as "faulty", "worn" or "marginal" and discarded. The false negative is when a faulty tube is passed by a tube tester as a healthy one, and, as a result, an expensive repair is likely if a faulty tube causes secondary faults in the actual equipment such as tube amplifier.

Just like cars, some tube testers look good but aren't that easy or pleasurable to use, others look old fashioned or complicated, but are quite accurate and capable. Some brands and models are overpriced, others are under-appreciated and thus cheaper than they should be.

One aim of this unique book is to identify strengths and weaknesses of various types or families of tube testers in a general sense, and positive and negative aspects of many specific models that often come up for sale.

Design, functionality, calibration and modifications of testers by B&K, Hickok, Triplett, Mercury, Sencore, Weston, Simpson, AVO, Taylor, RCA, Precise, Precision, Eico, Jackson, Sylvania, Knight, Heathkit, Seco, Sico, Conar, Metrix and other brands are discussed.

This practical technical manual is richly illustrated with photographs of inside and outside views of tube testers, their circuit diagrams and various graphs and charts.

Who is this book for?

• Buyers and sellers of vacuum tubes

• DIY constructors who want to build, service or modify tube amps

• Audiophiles and guitar players who want to match their own tubes

• Technicians and engineers who want to expand their knowledge of tubes and tube testers

• Anyone who wants to learn how to use, calibrate, repair and upgrade tube testers

Product Details

ISBN-13: 9780980622379
Publisher: Career Professionals
Publication date: 09/25/2017
Pages: 180
Sales rank: 663,907
Product dimensions: 6.00(w) x 1.25(h) x 9.00(d)

Table of Contents

1. HOW VACUUM TUBES WORK Page 9

  • ELECTRON EMISSION AND VACUUM DIODE
  • VACUUM DIODE IN DC AND AC CIRCUITS
  • ELECTRON TUBES - NAMING CONVENTIONS, BASES AND PIN NUMBERING
  • TRIODE PARAMETERS AND CHARACTERISTICS
  • CASE STUDY: STATIC PARAMETERS OF 12AX7 (ECC83) DUO-TRIODE

2. TESTING & MATCHING VACUUM TUBES Page 19

  • TUBE PARAMETERS AND THEIR VARIATION WITH TEST CONDITIONS
  • TUBE TESTING PRINCIPLES AND PROBLEMS
  • NEGATIVE GRID CURRENT - CAUSES AND DETECTION METHODS
  • TESTING CASE STUDIES AND PRACTICAL EXAMPLES OF TUBE MATCHING
  • HOW TO TEST A TUBE THAT IS NOT LISTED IN THE BOOK OR TUBE CHART
  • EXPERIMENT: COMPARISON OF TRIPLETT 3444, B&K700 and MERCURY 1000 TEST VOLTAGES FOR A FEW COMMON PREAMP AND POWER TUBES

3. EMISSION TESTERS Page 35

  • HOW EMISSION TESTERS WORK
  • EICO 625
  • KNIGHT KG-600, HEATHKIT TC-1, TC-2, TC-3 & IT-17
  • CONAR 221, 223 & 224
  • PRECISION 640 (NRI 71) & PRECISION 660
  • TRIPLETT 2413 & 3414
  • ELETTRA PROVAVALVOLE

4. GRID CIRCUIT TESTERS Page 47

  • HOW GRID CIRCUIT TESTERS WORK
  • SECO 78, 88 & 98
  • SENCORE "MIGHTY MITE" TESTERS: TC114, TC130, TC-136, TC-142, TC-154
  • SENCORE TC162 & TC28 ("THE HYBRIDER")
  • B&K 600 & 606 DYNA-QUIK TUBE TESTERS
  • B&K 607 & 667
  • B&K 625 DYNA TESTER
  • PRECISION APPARATUS COMPANY (PACO) 650 & T-62
  • MERCURY 1101, 1101C & 1101CT
  • AMERICAN SCIENTIFIC DEVELOPMENT COMPANY TV-20

5. DYNAMIC CONDUCTANCE TESTERS Page 61

  • THE OPERATING PRINCIPLE BEHIND DYNAMIC CONDUCTANCE TESTERS
  • SICO MODEL 85
  • SICO TV-12
  • SYLVANIA 139 & 140
  • SYLVANIA 219 & 220
  • JACKSON TUBE TESTERS
  • EICO 666 & 667

6. PROPORTIONAL MUTUAL CONDUCTANCE TESTERS Page 79

  • HOW PROPORTIONAL MUTUAL CONDUCTANCE TESTERS WORK
  • WESTON 798
  • TRIPLETT 3423
  • TAYLOR 45D
  • AVO VALVE CHARACTERISTIC METER (MK III)
  • METRIX 310CTR
  • SIMPSON 330

7. HICKOK-TYPE TESTERS Page 95

  • THE HICKOK BRIDGE CIRCUIT AND HOW IT MEASURES TRANSCONDUCTANCE
  • HICKOK TESTERS
  • B&K 500
  • B&K 550
  • B&K 650
  • B&K 675
  • B&K 700 & 707
  • B&K 747
  • MERCURY 1000, 1200 & 2000
  • PRECISE 111
  • PRECISE 116
  • DYNAMATIC DM456
  • SIMPLE FIXES & UPGRADES FOR HICKOK-TYPE TESTERS

8. TRUE MUTUAL CONDUCTANCE TESTERS Page 133

  • WESTON 981 & HEATHKIT TT-1
  • TRIPLETT 3444
  • SENCORE MU-140 & MU-150
  • RCA WT-110A
  • SECO 107, 107-B & 107-C
  • MODERN TRANSCONDUCTANCE TESTERS

9. REPAIRING & UPGRADING VINTAGE TUBE TESTERS Page 155

  • CHOOSING & BUYING A TUBE TESTER
  • SAFETY RULES and PRECAUTIONS
  • TYPES OF FAULTS, COMMON CAUSES AND FAULT LOCATION METHODS
  • COMPONENT TESTING
  • ANALOG (MOVING COIL) METERS
  • A CRASH COURSE ON PROPER SOLDERING
  • SOCKET ADAPTERS

10. TESTING & MATCHING TUBES WITHOUT A TUBE TESTER Page 171

  • SIMPLE OHMMETER AND MULTIMETER CHECKS
  • EMISSION AND TRANSCONDUCTANCE TESTS
  • DIY CURVE TRACER FOR MATCHING TUBES

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