Amplifiers - New 1

Amplifiers - Old 1

Biographies, Obituaries, Personalities 2

Business Climate 2

CD Players 2

Components 2

Computers - Tube 2

Histories - Manufacturers, Distributors 2

Literature 2

Phonographs 3

Preamps - New 3

Preamps - Old 3

Radios and Radio-Phonos - Antique 3

Receivers 3

Speakers 3

Technology - General 3

Test Equipment 3

Test Techniques 3

Tubes - General 3

Tubes - By Type 4

Tuners 5

Author Index 5

Note: page numbers followed with a * indicate an item of a full page or more; with a @, of three pages or more.

2A3 "classic" push-pull 13-10

Correction 14-35

30-W, with SV300Bs 12-25

35-W, using SV572s 10-25

300-W, Svetlana SV-572-160s 12-31

45s (8) 15-8

6SN7 line amp 17-12

Allen Amplification guitar amp 12-10

Antique Sound Lab AQ-1002K 7-26

Assemblage SET 300B 15-11

ASUSA A-4 11-22

ASUSA K2003 13-21

AudioNote Kit One 8-24

Berning Micro ZOTL 19-19

Carr guitar amps 20-26

Cathode-follower, with 6528 13-26

Direct-reactance-drive amp 14-25

Eckland SE 300B 12-16

Emery line 18-26

FI "X" 12-9

GE Model 270 12-15

Guitar amps, 1995 1-10

Headphone amp project 16-27

International Audio Group 4.5SE 16-27

JJ Electronic 828 18-28

Kimmel SE parafeed 20-4

"Kludge 4" SE headphone amp 11-24

KT88 PP, "ultimate" 19-26

Line amp. "Utrapath" 10-11

Line stage, octal-tube, "VTV" 11-10

Magnum SE amp 2-17

Moth Audio positive-ground 17-35

Moth Audio S2A4 12-9

P-P SV83s 14-18*

"Purple Speaker Eater" (mod. Harmon-Kardon Citation II) 4-22*

Randall amp. 6-14@

RF-powered amps (2A3, 300B) 15-16@

Rogue Audio "Tempest" 17-24*

Scott, H. H. 233, 299C, 299D 20-29*

Scott, H. H. LK-72, incl. diagram 20-31*

Scott, H. H. LK48 13-15@

Steele 70 Mk. II (ex-Dyna) 3-27*

Sweep-tube monoblock, EL509 8-10@

THD UniValve 19-32

Transmitting-tube test amp 9-7

Correction 10-2

"Tube-O-Vibe," version of Univibe guitar device 17-6

"Uncle Eric's" SE 5-22

Welborne DRD 2A3 20-24

Welborne Labs "Moondog" SE 12-9

AMPLIFIERS - OLD

'20s amps, general 1-3

Acrosound UL-11 11-14

Altec

128A, B 7-14

287W 9-28

340A 6-22

1568, 1569, 1570 7-13

1569A, 1570B - diagrams and

mods 7-15

Ampeg B-15 9-13

Ampeg SVT family, history and variations 9-13

BMAD Custom 200 8-29

Dynaco

Mk. II 1-5

Mk. II, incl. diagram 15-21

Mk. III 1-5, 11-14

Mk. III, incl. diagram 15-22

Mk. IV 1-6, 15-25

SCA-35 15-25

SCA-35 9-31

Stereo 70 1-6, 9-30

Stereo 70, incl. diagram 15-24

EICO

HF-22, 35 9-31

HF-50, 60 11-15

HF-87, HF-89 11-15

Mono HF-series 3-14

Fisher

400CXII 11-16

Mono amps 11-17

R-200 11-16

SA300 11-16

X-101, X-202 9-31

X1000 11-17

Guitar amps, trends in 2-20

Harmon-Kardon Citation I, II 4-15

Harmon-Kardon Citation series 11-17

Heathkit

A-5 2-4

A-7D, A-8, A-9 2-5

SP-2 11-18

W-2M 2-4

W-3M, W-4AM 2-5

W-4M 9-32

W-5M 2-6, 9-32

W-6M, W-7M 2-7

W1-A1 2-4

XO-1 2-6

Knight KB-85 11-18

Lafayette KT550 11-19

Leak

ST20 11-19

ST50, ST60 11-19

TL/12 11-19

TL50+ 11-19

Loftin-White amp 6-17

Magnavox AC-3 1-3

McIntosh MI-200 3-18@

McIntosh MI-200, correction 7-37

MFA M-120 10-20

Radio Craftsmen

C500, C500A, incl. diagram 19-21

C5550 19-24

RC-2 10-5

RCA AP-935 1-3

Restoration techniques 11-14

Samson PAM-29 1-1, 1-4

Sargent-Rayment SR-300 20-15

Sargent-Rayment, whole line 20-16

Scott, E. H. single-ended 1-4

Scott, H. H.

222 9-32, 13-15

Corrections 14-35

299, 299B, incl. restoration 12-19

299A 8-3

299C 9-32

LK-72 9-32

Sherwood S-5000, 5500 9-32

Stromberg-Carlson AP54-LW 6-19

Systems, WE theater 2-25  

Correction 7-37

Using 2A3 12-6

Using 6V6s 10-6

Vintage, repair and upgrading 9-39

Western Electric

25B 1-3

41, 42, 43 2-25

86B 16-4

92B, diagram 16-7

Atanasoff, John Vincent 7-28

Atwood, John 1-2

Barbour, Eric 1-2, 5-2

And AWA Tyne Award 13-3

Bardes, David 13-3

Berry, Clifford 7-28

Bozak, Rudy 18-17

Braithwaite, Norman 1-2

Buddingh, Terry 2-20

Carr, Steve 20-26

Cashman, John 19-21

Emery, Curt 18-26

Fisher, Avery 6-10

Hafler, David 14-20, 15-21

Hegeman, Stewart 4-15, 15-25

Hull, Everett 9-13

Jensen, Peter 7-16@

Keroes, Herb 14-20

Kittleson, Charlie 1-2

Klipsch, Paul 13-4@

Dies 20-43

Kron, Riccardo, dies 19-3

Loftin, Edward H. 6-17

Marantz, Saul 5-31

Michaels, Stanley 9-13

Miller, Ed 19-21

Moore, Bruce 8-26@, 10-18

Mullin, Jack 12-3

Nernst, Walther 19-11

Oliver, Jess 9-13

Olson, Lynn 18-3

Rayment, Lyndon Charles 20-15

Rayment, Lyndon William 20-15

Sargent, Edward M. 20-15

Sequerra, Dick 5-29

Smith, Sidney Stockton 15-3, 19-21

Dies 15-3

Steinmetz, Charles 19-10

Veil, Ron 13-3

von Recklinghausen, Daniel 12-19

White, S. Young 6-17

Whitney, Willis 19-12

Wolf, Arnold 20-18

Zuccaro, Michael 5-27

Antique Electronic Supply 8-32

Making Mallory FP caps 12-3

Audio Note and Alesa Vaic join 6-2

CE Distribution, as distributor of JJ tubes 16-3

Consumer Electronics Show

Winter 1997 7-34

Winter 1998 9-21

Ei, still in tube business 16-3

Ei-RC, KT90 4-25

Electra-Print, new transformers 7-2

Electro-Harmonix, new 300B 14-3

Electro-Harmonix, new EL34 13-3

Fisher knobs and light jewels, source for 8-2

Groove Tube and Fritztronics, tube-manufacture deal 6-2

Hi-fi, vintage, in Hong Kong 5-14

Internet - online tube frauds 20-13

Vintage microphones and speakers in   11-27

Vintage audio in 9-22

Metasonix, new tube synthesizer 12-3

"NOS" tubes, fake 16-3

NOS tubes as investment 18-14

PM, handles Svetlana tubes 16-3, 17-3

Richardson Electronics 11-11@

Sophia Electric, new 2A3, 274A, 300B  19-3

Sovtek, new tube types 11-2

Survey, tube sales, 1994 2-15

Svetlana, new 300B 11-2

Svetlana, new EL34 3-33

Svetlana, new tubes 7-2

Tube cartons, reproduction 8-2

Tube Collectors Ass'n formed 13-3

Vintage audio, in Japan 9-22

VTV moves to Lakeport 13-3

VTV opens pro-tube shop 10-2

Welborne Labs, as distributor for KR Enterprise 6-2

Western Amplification and Tube Technology Society formed 14-3

6922s and 7308s, now scarce 14-3

Jolida JD-603A 14-27

Jolida JD-603A 14-27

Cables, RCA-to-RCA, review and listening tests 16-22

Ceramic 7-31

Finding outer-foil lead 17-30

Signal, listening tests 11-26

Components, modern, Bruce Moore's preferences in 10-18

Components, old 3-25

Diodes, fast-recovery epitaxial 11-31

Diodes, silicon, problems with 11-32

Microphones, RCA 44-BX and 77-D, catalog pages 18-35

Copper oxide 9-34

Effects of changing 5-34

Magnesium - copper sulfide 9-34

Selenium 9-34

Selenium, replacing 9-34

Titanium dioxide 9-34

Transformers, output, for SE amps, tech and listening tests 3-22

Transistors, problems with 1-10

Tube, audio, "what is an" 1-12

Tubes, failure modes in 1-8

AN/FSQ-7 13-20

Bendix G-15 9-18

Burroughs E101, E102 9-18

Calculator, Anita 10-22

Calculators, electronic, tube 10-22

Digitair 15-32

EDSAC, EDVAC 7-33

ENIAC 7-33, 8-20

Harvard Mk. I 7-33

IAS 7-33

Librascope LGP-30 9-18

Logic gates, first tube-based 7-29

Monrobit III 9-19

Readix 9-19

STL-1 relay computer 7-32

Underwood Elecom 50 9-19

Whirlwind 7-33, 11-20, 13-20

Acrosound 14-20

Altec-Lansing 3-6

Ampeg 9-13

Amperex, and frame-grid tubes 7-4

AT&T/WE, in early electronic research  18-9

Audible Illusions 8-27

Audio Research 8-27

Bendix Red Bank 5-3

Bozak Co. 18-17

Bruce Moore Audio Design 8-26, 10-20

Dynaco 1-5, 15-21

Ei, still in business 16-3

EICO, in hi-fi 3-13

Fisher Radio Corp 6-10

GE, in early electronic research 18-9

Harmon-Kardon 4-15

Correction 10-2

Heath Co. 2-3

Jensen 7-22

Klipsch and Associates / Klipsch Inc.   13-4

Magnavox 7-18

Marantz, and 10B tuner 5-25

McMurdo Silver Corp. 10-13

MFA 8-28

Precision Fidelity 8-27

Radio Craftsmen 19-21

RCA Victor, Camden buildings torn down 3-2

RCA, tube prod'n at Harrison 8-15

Richardson Electronics 11-11

Sargent-Rayment 20-15

Scott, H. H. 12-19

Scott, H. H., and 222 and LK48 amps

13-15

Western Electric, and 300B 3-10

Claris Sonus magazine 18-3

Computer Pioneers and Pioneer Computers (video) 7-32

Dave Funk's Tube Amp Workbook  12-18

Desktop Reference of Hip Vintage Guitar Amps 12-18

Edison, Thomas 19-10

Guide to Guitar Amp Maintenance  12-18

High Fidelity Techniques 2-27

History of GEC and the Marconi-Osram Valve 17-26

How to Service Your Own Tube Amp  12-18

Inside Guitar Amps 5-17*

Paul Wilbur Klipsch - The Life . . . The Legend 20-3

Principles of Power 12-18

Quad: The Closest Approach 20-3

Radiotron Designer's Handbook 8-18

CD-ROM version 8-19

The Saga of Marconi-Osram Valve  17-26

Tonnes of Tone 12-18

Tube Amp Talk 12-18

Tube Lore 6-12*

Tube manuals, general 4-26

Tube Testers and Classic Electronic Test Gear (review) 15-14

Ultimate Tone, The 5-17, 12-18

VALVE magazine 2-2

Vintage Tube Archive Dynaco Archive CD 15-3

PHONOGRAPHS

WE 203 2-25

Correction 7-37

PREAMPS - NEW

"Comparison" 7-24*

PREAMPS - OLD

Audible Illusions 8-27

Dynaco

PAM-1 1-5, 15-22

PAS-1 1-6, 15-23

PAS-2 1-6, 9-31, 15-23

PAS-3 1-6, 9-31

Incl. diagram 15-24

EICO mono HF32, 65 3-14

Heathkit WA-P1 2-4

Heathkit WA-P2 2-6

Knight KP-50 11-18

Lafayette KT600A 11-18

MFA Luminescence 8-28

MFA Magus 10-19

Paragon Model 12 8-27

Precision Fidelity 8-27

RADIOS AND RADIO-PHONOS - ANTIQUE

Scott, E. H. Quaranta 3-3

RECEIVERS

Fisher

400 6-6

400, 500C 9-31

500 series, history and rest'n 6-3

800 series 6-5

TA600 6-3

McMurdo Silver Masterpiece I, II, III, IV, V, VI   10-13

Acoustic Research AR-series 4-30

Correction 7-37

Advent 4-31

Altec 604 series 3-5@

Bass-reflex enclosure, dev. of 10-17

Bookshelf, modern, for tube amps 12-15

Bozak, whole line 4-32, 18-17

Celestion A1 12-17

Dynaco 4-32

Fulton / EMI 4-33

Gillum G3 14-17

Infinity Overture One 12-16

JBL HLS-810 12-16

KEF Q-15 12-16

KLH line 4-31

Klipsch RF-7 19-17

Klipschorn, history & variants 13-6

NHT Super One XU 12-15

Omega Super 8 20-11

Paradigm Titan 12-17

Polk Audio RT-55 12-15

Rectilinear 4-32

UTC Minimax 4-32

WE 16-type horn 2-25

WE 555 2-25

Wharfedale 4-33

'50s systems 4-28

Amplifier-speaker interface 18-30

Audio equipment, post-'40s 14-21

Consumer electronics, failings in modern 13-13

Contest for hi-fi: WE vs. RCA 18-9, 19-9

Designing for sound 4-23

FM radio, why 88-108 MHz? 4-12

Guitar amps, preferences in 2-20

Internet, bad info on 8-2, 14-29*

Output circuits, comparison 16-4

Power-line conditioning 3-27

Proximity fuze 13-28

Safety, philosophy for home construction 17-31

"Ultrapath" output circuit 16-4

Ultra-linear circuit, beginnings 14-24

Audio Precision System Two distortion analyzer 9-27, 10-29

Audio signal generators 5-20

Distortion analyzers, general 8-30, 9-25, 10-29

E H Res. Labs 136A pulse gen. 5-21

EICO 377 audio osc. 5-21

General Radio 1650A impedance bridge 12-14

General Radio variac 11-28

H-P 200CD audio osc. 5-21

H-P 333A distortion analyzer 9-26

Hagerman Vacu Trace curve tracer  16-24

Heathkit

IG-1275 function gen. 5-21

IM-5248 distortion analyzer 8-30

IO-10 'scope 6-27

IO-12 'scope 6-28

PS-3 reg. power supply 11-29

Lambda 50 reg. power supply 11-2

Maxi-Matcher digital tube tester 10-24

Meters, volt, analog & digital 3-16

Oscilloscopes, gen'l 6-26, 7-10

Power supplies 11-28

Preamp, "comparison" 7-24

Sound Precision 1700B distortion analyzer 9-26

Sound Technology 1700B distortion analyzer 8-31

Sprague Tel-Ohmike cap. tester 12-14

Tektronix oscilloscopes

310 6-29

465B 7-12

502A 6-29

545B 6-27

Telequipment D43S 'scope 7-12

Waveforms 510B audio osc. 5-21

AC meters 4-33

Capacitor, finding outer-foil lead 17-30

Distortion measurements 8-30

Impedance measurement 12-13

Screening tubes 1-8

Test bench and tools 2-13

Tube matching 2-22

Waveform observation 7-10

9-pin miniatures, general 15-12

"50-watters" for audio, tech tests 9-8

Bendix Red Bank types 4-3

Compactrons, "whole" line 20-22

Damper diodes, TV, as rectifiers (6AL3, 6AY3, et al.) 12-30

Dual triodes, dissimilar, "whole line"  17-28

Frame-grid types, incl. tech tests 7-3

Magic-eye tubes, full line, history, pinouts, circuits, etc. 18-4

NOS tubes, why better 19-14

"NOS" tubes, counterfeit 20-13

Philips postwar tubes, date and factory codes 16-13

Power pentodes, 7-pin, whole line  14-31

Rectifiers, octal and earlier, general and ratings 17-15

Subminiature types, history and characteristics 13-28

Tubes, re-branded, poor substitutions, "matched," frauds 5-32

Vertical-output tubes, whole line 16-10

2A3 family, incl. tech tests 12-4

2A3, listening tests 12-8

2C51 9-10

5AR4 / GZ34 5-33, 17-21

5AT4 17-23

5R4 5-34

5R4G variants 17-18

5R4WGB 17-19

5T4 17-17

5U4C 17-21

5U4G 5-34, 17-17, 17-20

5U4GA, GB 17-18

5V4 5-33

5X4G 17-18

5Y3GT 5-6, 5-34

5Z3 17-17

5Z4, "birdcage" 17-15

6A3 12-4

6A5G 12-4, 14-20

6AF6G 18-5

6AR6 5-4

6AV5 10-21

6AV5, as 6B4 3-22

6B4G 12-4, 14-20

6B4G, 6AV5 as 3-22

6BQ5 / EL84 5-4, 8-3

6C8G 11-3

6CA7, full report 2-8

6DJ8 family 7-3@

Listening tests 7-8

6E5GT 18-5

6EA7 5-23

6EA8, as sub for 6BL8 or 6GH8 12-23

6EM7 5-23

6EY6, as sub. for 6V6 10-5

6EZ6, as sub. for 6V6 10-5

6F8G 11-3

6FQ7 6-31

6GL7 5-23

6GM5 20-9

6J5G 11-3

6JK6 5-30

6KG6 / EL509, Svetlana 2-19, 8-10

6L13 14-

6L6 13-22

6L6, history and tech tests 4-3

6L6, listening tests 4-11, 13-22

6LF6 8-10

6ME10 18-5

6N23P 7-6

6P35S 4-9

6SN7 8-25

6SN7 family, with tech tests 11-3

6SN7 family, listening tests 11-9

6SN7, amps using 11-6

6SN7W, Sylvania, as investment 18-15

6T5 8-5

6U6 10-5

6U8A, as sub for 6BL8 or 6GH8 12-23

6V6 10-3-@

6V6 family, incl. tech tests 10-3

6V6 family, listening tests 10-9

6V6GT 5-5

Disappearance of 2-16

6W6 10-5

6Y6G 10-4

7C5 10-4

7N7 11-5

12AD7 1-13, 14-7, 14-14

12AT7 14-7

12AX7 family

Incl. test results 1-13

History, variants, and guitar-amp

listening tests 14-9

Listening tests, hi-fi 15-33

Added info and substitutes 14-4

12AY7 14-7

12BH7 6-31

12DF7 1-13, 14-8

12DM7 1-13, 14-8

12DT7 1-13, 14-8

12DW7 14-18

12SX7 8-25

25E5 20-9

42, Sylvania 10-3

45, history, variants, tech tests 15-4

56 11-3

76 11-3

83 5-33

180, 181, 182; Arcturus 17-16

182, 182B 15-5

203 9-3

205-type 3-8

211 9-3

211D, E 9-4

216B Rectron 17-17

227 11-3

247, RCA 10-3

252A 3-9

274A, B 17-19

275A 3-9

276A 9-4

280, mesh-plate 17-16

284A 9-6

295, Speed 15-7

300B types, listening tests 8-22

300B, incl. test results 3-8

300B, Shuguang / Royal variants 4-23

300B, WE 1-11

350B 4-7

396A 9-10

404A 11-21

407A 9-10

416A 7-3

417A 7-4, 7-36*

805, in Altec 287W 9-28

845 9-3

1614 4-4

1758, Philips 17-15

3180, Cossor 18-4

5670 9-10

5687 family, incl. tech tests 6-30

5690 17-19

5692 11-6

5751 1-13, 14-7, 14-15

5842 7-36*

5847 11-21

5871 10-5

5881 4-7, 13-22

5930 12-6

5931 17-19

5932 4-7

5992 5-5, 10-5

5993 5-6

6072 14-7

6087 5-34

6094 5-4

6094, repl. 6BQ5 / EL84 / 7189A 5-6

6100 5-6

6106 5-6, 5-34

6384 5-5

6384, replacing 6L6 to 5-6

6385 5-6, 9-10

6386 9-10

6528 13-26

6550 4-7

6550 / KT88

Incl. tech tests 6-21

Listening tests, for hi-fi 19-28

Listening tests, for guitar amps   19-32

More history, tech tests 19-4

6679 1-13

6681 1-13, 14-6

6688 11-21

6851 1-13

6854 9-10

6900 6-31

6922 7-5

7025 14-4

7027 4-7

7044 6-31

7058 14-13

7119 6-31

7189 8-5

7199 14-18

7247 14-18

7308 7-5

7320 / E84L 8-5

7408 10-5

7581 4-7, 13-22

7591 family, variants, tech tests 20-8

7591, Sovtek version 15-3

7687, as sub for 6BL8 or 6GH8 12-23

7729 1-13, 14-8, 14-13

7788 11-21

7868 20-9

7961 9-10

8417 4-7

AM2 18-5

Audion, de Forest 19-9

AZ11, Telefunken 17-16

B65 11-6

B339 14-8

B759 14-5, 14-8

CCa 7-5

Correction 7-37

CV181 11-5

CV492 14-8

CV1988 11-6

CV4004 14-8

CV8156 14-8

CV8222 14-8

E34L 16-21

E83CC 14-8

E84L / 7320 8-5

E180F 11-21

E188CC 7-2

E2164 14-8

ECC33 11-5

ECC83 1-13*, 14-5

ECC88 7-2

ECC803 14-5

ECC863 14-8

ECL82 / 6BM8 13-17

EFM11 18-4

EL34

Full report 2-8

History, variants, tech tests 16-16

Listening tests, for hi-fi 16-29

Listening tests, guitar amps 16-32

Svetlana 3-22

EL37 4-7, 13-22

EL41, UL41 8-4

EL81-83-83-86 8-5

EL84 / 6BQ5 family

History and tech tests 8-3@

Listening tests 8-8*

EL509 / 6KG6, Svetlana 2-19, 8-10

EM2, EM4, EM11 18-4

EM34, EM35 18-5

ER280, Raytheon 17-17

G4H 18-4

GM-70, Ulyanov 9-9

GZ34 17-20, 17-21

KT61 10-5

KT66 4-6, 13-22

KT88, incl. tech tests 6-21@

KT88, Tesla 4-25

KT90 6-25, 19-6, 19-31, 19-34

KT90, Ei-RC 4-25

KT99 6-25

M8137 14-8

Mercury rectifier, National Radio Tube Co. full-wave 17-15

PZ, Arcturus 10-3

SV572-10, Svetlana 5-23

SV811, Svetlana 1-11

SV811-10, Svetlana 5-23

SV83, Svetlana 8-4, 14-18

THD "reactive rectifier" 5-33

Tune-A-Lite 18-4

Tunograph 18-5

U52 17-21

UX-281 17-17

VT-4C 9-6

VT-52 15-5

VV30B, Vaic 1-11

VV52B, Vaic 2-16

Accuphase T-100 5-12

Day-Sequerra 5-12

Dynaco

DSC stereo adapter 15-23

FM-1 1-5, 15-23

FM-3 1-6, 5-10, 15-25

SAC-35 1-6

EICO HFT90, 92 3-15

Fisher

AM 1000 5-10

FM-50 9-32

FM-90X 5-9

FM 100 9-32

FM 100-series, incl. rest'n 18-22

FM 100B 5-10

FM 1000 11-17

FM 200B 5-10, 11-16

KM-60, KM61 18-24

R-202 5-9

Heathkit

AJ-1600 5-12

FM-3 2-6

PT-1 5-9

Magnum Dynalab Etude 5-12

Magnum Dynalab MD-108 5-12

Marantz 10B 5-11, 5-25

Marantz Model 20 5-13

McIntosh MR65 5-9

McIntosh MR67 5-11

Nems-Clarke 1502 5-9

Radio Craftsmen RC-10 5-9

SAE T-101 5-13

Sansui TU-9900 5-13

Sargent-Rayment, whole line 20-16

Scott, H. H.

310E 5-11

333 5-11

350 9-32

4310 5-12

LT-110 9-32

Sherwood S-3000 5-10

Tuner "shoot-out" 5-7

Anderson, Roger

Sargent-Rayment Story, The, 1927-1961 20-15@

A Museum Class Inspires an Amplifier   6-14

Antique Sound Lab AQ-1002 Kit One Amplifier 7-26

"Audio Test Bench, The," Series

AC Meters 4-33

Audio Signal Generators 5-20

DC Meters 3-16

Distortion Analyzers 8-30, 9-25, 10-29

Impedance Measurement 12-13

Oscilloscopes 6-26, 7-10

Power Supplies 11-28

Test Bench and Tools, The 2-13

AudioNote Kit One - A Quality Single-Ended Amplifier Kit 8-24*

"Cathode Bias" Series

Buyer Beware 5-32

Ceramic Capacitors 7-31

Designing for Sound 4-23

Metallic Rectifiers 9-33

Old Components - Caveat Emptor  3-25

Help Conserve a Finite Resource  2-16

Cathode Follower Amp, A 13-26

"Dumpster Tubes" Series

7-Pin Power Pentodes 14-31

9-Pin Miniatures 15-12

Compactrons 20-22

Dissimilar Dual Triodes 17-28

Rectifiers 12-30*

Subminiature Types 13-28

Vertical Output Tubes 16-10*

Hagerman Vacu Trace Curve Tracer, The 16-24

Philosophy of Safety for the Home Constructor, A 17-31

Radiotron Designer's Handbook on CD-ROM (review) 8-19

RF-Powered Amplification 15-16

Screening Vacuum Tubes 1-8

Transmitting Tube Test Amp, A 8-7

Tube Matching 2-20

Why 88 to 108? - The History of Early FM Radio 4-12

Atwood, John, and Charles Kittleson

Problems with Transistors 1-10

2A3: Mother of High Fidelity 12-4

6L6 Forever 1936-96 4-3

6SN7: Driver of Choice 11-3

12AX7: A History and Comparative Encyclopedia 1-13

12AX7: Twin Triodes Forever 14-4

35 Watts of Triode Power with Variable Feedback 10-25

45: Just Enough Power 15-4

417A / 5842, The 7-36*

5687 Tube Family, The 6-30*

6550 / KT88 Power Kings - Part II 19-4

7591 - The Space Savers 20-8

All About the 6DJ8 and Other Frame Grid Tubes 7-3

Baby Blues Bottle: Story of the 6V6  10-3

Book Review: Two Books About M-OV  17-26*

Build a Comparison Preamp 7-24*

Computer Pioneers and Pioneer Computers (video review) 7-32*

"Computing with Tubes - the Savage Art" Series

1. ABC, the Father of Everything

7-28@

2. Inside ENIAC 8-20*

3. The First PCs Were Not Made in

1975 9-18@

4. The World's First Electronic Calculator - Tube Powered!  10-22*

5. The First RealTime Machine  11-20*

6. Uncle Sam's Monster 13-20*

7. The First Mobile Computer 15-32*

EL34 Report, The: History and Comparisons 2-8

Corrections 7-37

EL84: The Baby with Bite 8-3

History of the WE300B and Its Relatives 3-8*

How to Determine the Outer Foil of a Film Capacitor 17-30*

Inside Guitar Amps (review) 5-17*

Internet Lies and Other Hype 14-29*

Legacy of the 50 Watter: 211 & 845  9-3

Life and Times of the EL34 16-16

Magic Eye Tubes 18-4

"NOS" - Next Online Scam? 20-13*

NOS Audio Tubes: The World's Best Investment? 18-14

Power Kings, The: 6550 and KT88   6-21

Problems with Modern Consumer Electronics  13-13

Rectifiers for Audio 17-15

Red Bank: The Ultimate Tube 5-3

Review of Popular Guitar Amp Books, A 12-18

Tube Industry News 2-15*,

3-22@, 4-25

Tube Lore (review) 6-12*

Tube Testers and Classic Electronic Gear 15-14*

Ultimate Tone, The (review) 5-17*

Uncle Eric's Deluxe SE SV811 Amplifier Project 5-22

Uncle Eric's Tube Dumpster" Series

#3: 12SX7 8-25

Type 2C51 / 5670 9-10

The 6AV5 - A Small Sweep Tube 10-21*

The 6688 / E180F 11-21*

Why NOS Tubes Are Better 19-14

Barbour, Eric, and Charles Kittleson

Fast Recovery Epitaxial Diodes 11-31*

Inside Richardson Electronics 11-11

Listening to 6SN7s 11-9*

VTV Octal Line Stage Project 11-10*

Barbour, Eric, and Peter Belov

Build 300 Watts of Triode Power 12-31*

Assemblage SET 300B Amplifier 15-11*

ASUSA K2003 Amplifier - Good Things Come in Small Boxes 13-21*

Berning Micro ZOTL Amp 19-19*

Clean, Clear, and Tube Friendly - The Gillum G3 Loudspeaker  14-17*

Interconnects in Review 16-22

International Audio Group's 4.5SE Review  16-27*

Interview with Paul Klipsch, An 13-4

JJ 828 Amplifier - Push Pull Thrill Ride 18-28*

Jolida JD-603A CD Player - CD Player with a Glass Heart 14-27*

Klipsch RF-7 - Powerful Speakers for Low Powered Amps 19-17

Klipschorns - Out of the Corner and into the Limelight 13-6

Modern Bookshelf Speakers for Classic Tube Amplifiers 12-15

Moth Audio's Positive Ground Amp  17-35*

Omega Speaker Systems Super 8  20-11*

Reactance Reaction: The Welborne DRD 2A3 Amplifier 20-24*

Rogue Audio Tempest Amplifier 17-24*

Rudy Bozak - Legendary Speakers from a True Pioneer 18-17*

Beck, Chris

PP SV83 Amplifier Project 14-18*

Belov, Peter, and Eric Barbour

Build 300 Watts of Triode Power 12-31

Blake, Alan

Dating Philips Tubes After 1948  16-13

Bourbin, Paul

Tube Manual Fragmenta, A, or a Comparison of Various Tube Manuals 4-26*

Radiotron Designer's Handbook (review) 8-18

The Great Voice - A Tribute to Peter Jensen, Founder of Magnavox and Jensen 7-18

Braithwaite, Norman

Best Money Can Buy, The 3-1-3

Early Days of High Fidelity and McMurdo Silver Corporation 10-13

In the Beginning . . . 1-3*

Brown, Bart

Eight 45s in a High-Quality Amplifier  15-8

Buddingh, Terry

Ampeg SVT: History and Variations 9-13

The Art of Rectification 5-33*

Buddingh, Terry, and Charles Kittleson

6V6 Listening Tests 10-9*

Dickman, John

Tube Headphone Amplidier Project 16-28*

Dorsey, Scott

Kludge 4 Single-Ended - OTL Headphone Amplifier Project 11-24*

Douglas, Alan

Story of the Loftin-White Amplifier, The 6-17@=

Eckland, John

Ultimate PP KT88 Amp, The  19-26*

Classic 2A3 Amplifier, A  13-10

Elliano, Jack

Direct Reactance Drive Amplifier 14-25*

Ultrapath Line Amp, The 10-11*

Frankland, Scott

Contest for High Fidelity, The: Western Electric vs. RCA  18-9@=, 19-9

Graves, Rick Vintage Hi-Fi in Hong Kong 5-14

Kennedy, Kevin 30 Watts Push-Pull with Svetlana SV300Bs 12-25

Kimmel, Alan Choke Assisted Mu Stage, The, and the Kimmel SE Parafeed Amplifier 20-4

Sweep Tube OTL Monoblock Amplifier 8-10

1927-34 Western Electric Large Theater Sound System 2-25

6550 / KT88 Shootout: Guitar 19-28

6550 / KT88 Shootout: Hi Fi 19-28

ASUSA A-4 Amplifier - VTV Kit Review  11-22*

Best Sounds in Vintage Hi-Fi Under $350 9-30

Cinema Amplification - Altec-Lansing 1568, 1569, and 1570  7-13

Classic Loudspeakers - The Altec-Lansing 604 Duplex 3-5

Designer Profile: Steve Carr of Carr Amplification 20-26

EICO - Early Hi-Fi Years 3-13

EL34 Shootout for Guitar Amps 16-32

EL34 Shootout for Hi Fi 16-29

EL84 Listening Evaluations 8-8

Fisher 100 FM Tube Tuners 18-22

Fisher 500 Family of Receivers, The - The Start of a Generation 6-3

Golden Age of Stereo - Harmon-Kardon Citation I, II 4-15

Great Sounds from Vintage Home Hi-Fi Speaker Systems 1958-1969 4-28

H. H. Scott 299 & 299B EL84 Stereo Amplifiers 12-19

Heathkit - The Early Hi-Fi Years  2-3

History and Future of Dynaco Tube Audio, The 1-5

Interview with Bruce Moore, An 8-26*, 10-18*

Interview with David Hafler, An - Part 1: The Acrosound Years 14-20@

Interview with David Hafler, An - Part 2: The Dynaco Years 15-21@

Listening Evaluations of 6DJ8 Tubes 7-8*

Listening to 2A3s in Modern SE Amplifiers  12-8*

Maxi-Matcher Digital Tube Tester - VTV Product Review 10-24*

Mid-Priced Vintage Hi-Fi Equipment 11-14

Radio Craftsmen C500 Amplifiers - #2 Vintage Hi-Fi Series  19-21

RCA Tube Production - Harrison, New Jersey  8-15

Scott 222 and LK48 Amps - Sweet Sound for a Song  13-15

Scott 299C, D, and LK-72 Amplifiers  20-29

Tube Guitar Amps: An Interview with Terry Buddingh 2-20*

Ultimate 12AX7 Shootout, The: Hi Fi - 24 Types Tested 15-33

Ultimate Tuner Shoot-Out, The 5-7

Vintage Audio in Japan - 1. Amplifiers and Preamplifiers   9-22

Vintage Microphones and Speakers in Japan 11-27*

VTV at the Winter 1997 CES in Las Vegas 7-34

VTV Listening Tests: 211 / 845s and 10K SE Transformers 9-11*

VTV Listens to SE Transformers 3-24*

VTV Listens to Signal Capacitors

11-26*

VTV Listens to the New WE 300B Types 8-22*

Kittleson, Charles, and John Atwood

Problems with Transistors 1-10

Kittleson, Charles, and Eric Barbour

Fast Recovery Epitaxial Diodes 11-31

Inside Richardson Electronics 11-11

Listening to 6SN7s 11-9

VTV Octal Line Stage Project 11-10

Kittleson, Charles, and Terry Buddingh

6V6 Listening Tests 10-9*

Kittleson, Charles, and Ron Veil

Ultimate 12AX7 Shootout, The: Guitar Amps   14-9

Ultimate 6L6 Shootout 13-22

Manion, Marc What is Power Line Conditioning? 3-29

Olson, Lynn Amplifier-Speaker Interface, The 18-30

Ultrapath, Parallel Feed, and Western Electric 16-4

Pugliese, Al Tribute to Avery Fisher, A 6-10

Sears, Richard 6SN7 Line Stage Project 17-12

Steele, Daniel Steele 70 Mk. II 3-27

Stone, Natalie Gentle Giant, The: Altec 287W 9-28

Swartz, Scott Tube-O-Vibe Project 17-6

Veil, Ron Allen Amplification Guitar Amp Kit Review 12-10

Curt Emery - Mini Boutique Amp Designer 18-26*

Veil, Ron, and Charles Kittleson Ultimate 12AX7 Shootout, The: Guitar Amps 14-9

Ultimate 6L6 Shootout 13-22

Wolze, David A. Magnum Single-Ended Amp, The 2-17

Quest for the Ultimate, The (McIntosh MI-200) 3-18

Zuccaro, Michael Birth of the Marantz 10B 5-25