| Receiving
Tube Supplement, Military/Industrial, supplement for 1958, detailed
specs, data, prices |
| Automobile
Radio Call Letters Book c.1939 |
| Tuning
the Antenna by McMurdoSilver 1935 |
| RPX
Series Variable Reluctance Phonograph Cartridge and UPX003A Preamp Data |
| INSTRUCTIONS
FOR RESISTANCE COUPLED AMPLIFIER (c 1924) |
| History
of company |
| 1952
Dictionary of Radio and electronic terms |
| HIQ
1926 Plans for building this set |
| Automobile
Radio Call Letters Book c.1939 (perfect for the old car glove box) to
pickup "old" stations |
| HQ200
sales brochure |
| 10
Kits Instruction Manual with Schematics 1953 |
| Automobile
Radio Call Letters Book c.1939 (perfect for the old car glove box) to
pickup "old" stations |
| Radio
dial belt and cable repair guide, covering most receivers |
| "Nikola
Tesla, Father of Wireless" Radio Craft Magazine 2/43 by Hugo
Gernsback |
| "Bringing
Electric Sets Up to Data" , c. 1934 |
| "Official
Radio Service Manual" Excellent Text , No Schematics Just text |
| Sine
& Square Wave AF Oscillators, 1943 |
| SUPER
PRO 400 sales brochure with schematics |
| Amplifier
Builders Guide Radiocraft Publications, 1947 |
| Bringing
Electric Sets Up to Data" , c. 1934 |
| Modern
Radio Hookups Diagrams of BC and SW Sets, Text, Etc. |
| History
of Company |
| Official
Radio Service Manual Excellent Text on Servicing Old Radios |
| History
of Company Also known as Charles Freshman Co., Inc. |
| Dial
Belt Guide, covers most receivers |
| Volume
2 Index for Official Radio Service Manual |
| 245M |
| How
To Read Radio Diagrams, how to understand radio diagrams |
| Volume
1 Index for Official Radio Service Manual |
| "HOW
TO BUILD", 1943, Instruction manual, nearly all s |
| Masterpiece
1925 Plans for building this set |
| SP600
communication receiver factory specification sheets and advertisments |
| KV100
VDOUBLET Antenna technical data |
| History
of Company |
| M5C
(SPX001) Preamplifier technical manual |
| 1st
Quarter Century of Radio Excellent book on history of radio |
| Super
10 1928 Plans for building this set |
| 5Tube
1926 Plans for building this set |
| SuperHetero
1925 Plans for building this set |
| Seven
1927 Plans for building this set |
| 1926
Plans for building this set |
| Test
Equipment Sales Brochure with Specifications, Photos, etc. c.1974 |
| ScreenGrid
Receivers Brochure |
| "Transistor
Radios" c.1957 (excellent text) |
| 1939
Book |
| Obsolete
Tube Types Test Data Manual for s 533a, 600a, 605a, for types 00, 01a,
99, etc., Older tubes not on chart |
| 19391043102,3,4 |
| Phonograph
Cartridge Directory & Replacement Chart, c. 1949 |
| Vol.
1 Radio Instuction Book Great reading for old radios |
| History
of AtwaterKent & 1920's Radios |
| Roll
Chart for Tube Testers 533a, 535, 600a, 605 and 605a |
| A
New Type of InductanceCapacity Resistance Chart, c 1932 |
| An
Audio Amplifier Testing Unit, c.1943, no schematic diagram |
| 1951
Loudspeaker catalog, with plans for enclosures |
| Rebel
IV Plans for Speaker Enclosure |
| 14
Plans for building this set |
| Here's
How to Prevent Interferance in your Radio, sales brchure |
| Arcturas
Tube Prices and Substitution Chart 1938 |
| GUIDELINES
FOR SAFE DESIGN OF Polyphase Elect. Systems |
| The
True Story of Heinrich Hertz written in 1935 |
| 1930
Factory Sales Book |
| 1931
Book on Compact Superhet Receiver |
| SSB
MANUAL |
| 1934
Worldwide Radio Station Directory |
| HOW
TO LOCATE TROUBLES IN YOUR RADIO SET c. 1924, T. Benson from the EICO
co. |
| AK
Breadboard No. 8 Data Rarest of all Breadboard Radios |
| Hickok
s 533, 600 and 605 Foreign Tube Test Data |
| ATWATERKENT
ELECTRICAL VALUES OF RESISTORS AND CONDENSERS from AK Manual |
| Instructions
for Detectors and Amplifiers |
| Underground
Antenna System ("subantenna" data) |
| "A
Battery Set Nostalgia" , 40 full page ads of many beautiful battery
receivers and accessories of the 1920's |
| RADIO
SERVICE TRADE KINKS by L. Simon, 1939. A listing of hundreds of case
histories of trouble symptoms and |
| Early
TV book full of illustrations, etc. c.1927 |
| "The
Heathkit Equipment Guide" , from the very start of the Heath
Company through the 1960's, full of illustrations, dates and
specifications |
| "The
Encyclopedia of Antique Radio Test Equipment", an excellent aid in
identifying radio servicing equipment, full of illustrations |
| "Silvertone
of the Thirties" from Sears catalogs, photos and descriptions of
Sears sets from 1929 to 1939, excellent reference |
| "Henley's
222 Radio Circuit Designs", 1924, Schematics, part values, etc. |
| Factory
Dealer Sales Letters Book |
| "From
Coherer to Spacistor" A radio history written in 1958 |
| Ads
showing construction, etc. c.1954 - HI-Fi Speakers Data |
| ATWATERKENT
SERVICE MANUAL, Theory Section Only |
| HOW
TO BUILD HAZELTINE'S NEUTRODYNE RECEIVER, 1923 |
| History
of company Also known as Electrical Research Laboratories |
| Collections
for many onetube set circuits, Armstrong Ckt., etc. c.1924 |
| HOW
TO MAKE WIRELESS RECEIVING APPARATUS by 25 experts, 1922, many
illustrations |
| Tube
Manual (From Poster), C. 1936 |
| History
of company Also known as F.A.D. Andrea, Inc. |
| Radio
Sales Brochures, plastic and wooden sets c.1940 |
| Cathod
Ray Oscillograph manual, theory, etc, C. 1935 |
| Radio
Contstruction & Repairing McGraw Hill (1924), an excellent text on
the fundamentals of theory and repair |
| 644
Microphone instruction/technical data sheet |
| The
Story of Facsimile, c 1941, equipment, etc |
| History
of Company Also known as King Quality Products, Inc. |
| History
of company Also known as J.B. Ferguson, Inc. |
| Fisher
500C A Test Report 1964 |
| "Eliminating
Interference in Superhetrodynes", c. 1930 |
| "Plans
for the Silver ShieldedGrid Six", c. 1928, plans |
| A
New Superheterodyne by McMurdoSilver 1935 |
| A
portable communication receiver with schematic, 1939 |
| Measurement
of |
| A
Special DualControl Receiver by McMurdoSilver 1926 |
| HOW
TO REPLACE 35Z5 WITH A 100ma SELENIUM RECTIFIER |
| History
of company Also known as Federal Telephone & Telegraph Co. |
| HISTORY
OF THE SQUAD RADIO |
| History
of Company |
| DIAL
CORD STRINGING GUIDEfor specific makes & s, 19381947 |
| History
of Company |
| Servicing
by signal substitution for E200C signal generator, operation/maintenance
with schematic of E200C |
| Four
1928 Plans for building this set |
| Reflex
1925 Plans for building this set |
| History
of company Also known as Airway Electric Appliance Corp. |
| Five
1927 Plans for building this set |
| Converting
your first command receiver (SCR274 & ARC5) c. 1963 |
| History
of Company |
| INFANTRY
COMMUNICATIONS DATA |
| Underground
Antenna System, c. 1934 |
| Conversion
of SCR274 (ARC5), 1948 |
| 19371938
Radio set specifications |
| The
Radio Trade Directory for 1925 Listings & Illustrations of Various
Companies Involved in Radio Manufactures, Parts, Etc. |
| INTRODUCTION
to Electronics |
| 1926
Plans for building this set |
| Radio
Receivers 6DL and 6V2 Factory Service Data |
| Shielded
Grid 6 MC Murdo Silver 1926 Plans for building this set |
| RV1
Reverberation Unit, Technical Data c.1965 |
| SALES
BROCHURE LEAR KNOW HOW |
| Dial
Drive Assemblies Data |
| Modern
Radio Reception , 1925, many illustrations, diagrams |
| NC88
Communications Receiver Schematic and Article |
| 19,
38, 89 s correcting intermittent operation information and data |
| 1934
Instructions for adjusting compensating capacitors in s 10200 |
| Construction
Plans for Bass Reflex Speaker Cabinet |
| 1928
Plans for building this set |
| 1934
Transitone Automobile Radios Sales Brochure, s 6, 9 & 12 |
| 1948,
Training Manual on Antennas, excellent text |
| 460 |
| "The
Man before Marconi", biograph of dr. Mahlon Loomis |
| KG600
SERIES SUPPLIMENTARY TUBE DATA |
| Five
Plans for building this set |
| History
of company |
| "Transistor
Fundamentals" booklet; c. 1967 |
| RBL/13
VLF Receiver technical specifications |
| STUDY |
| SW3 |
| History
of Company Also known as Joseph W. Jones Radio Manufacturing Company,
Inc. (MELCO BRAND) |
| SW3 |
| SW3 |
| SW34
&SW58 |
| Cnstructing
a Karlson Speaker Enclsure 1955, how to article |
| Adjusting
Philco Superhetrodynes c 1930 |
| Fundamentals
of Television Engineering, 1942, good text regarding early television |
| 1927
Plans for building this set |
| NC173
Communication Receiver sales brochure, 1948 |
| History
of Company Also known as GoldenLeutz, Inc. and sold under the
NordenHauck Brand name |
| 1926,
"A transoceanic broadcast receiver" by C.R. Leutz |
| "Eliminating
Radio Noise Interference caused by32V Farm Lighting |
| "Everyday
Electronics Reference Manual" |
| AR9
1926 Plans for building this set |
| History
of Company usually known simply as TUSKA Radios |
| RADIO
BUILDER'S HANDBOOK 1944 31 PGS |
| Frequency
Modulation 1942, excellent text on early FM |
| List
of Chevrolet automobile radios from 1932 1946 showing years
manufactured, etc |
| Resistor
Values for Self Biased Tubes |
| History
of Company Also known as Kellogg Switchboard & Supply Co. now known
as IT&T |
| History
of Company Also known as Pilot Electric Manufacturing Co., Inc. |
| The
Coherer how this early type detector works |
| Practical
radio noise suppression in home receivers, 1942 text |
| RECEIVING
TUBE CHARACTERISTICS TUBE MANUAL 1942, (00,01a,WD11,99) |
| HANDY
CIRCUIT BOOKLET FOR RADIO SET BUILDERS (M&H 1928*, many photos,
schematics and parts |
| History
of Company Also known as Federal Telegraph Company |
| SUPERHETRODYNE
FIRST DETECTORS AND OSCILLATORS 1942, good text |
| USEFUL
SERVICING INFORMATION 1942, good reference data |
| Vacuum
Tube Voltmeters, excellent 1942 text with schematics, etc |
| Vibrators
& Vibrator power supplies (theory and design) |
| 14800+
Replacement parts chart for these s |
| LOUD
SPEAKER FREQUENCYRESPONSE MEASUREMENTS 1944 |
| Volume
23 Troubleshooters Manual Index with parts lists |
| Brochure
for 71 and 72 c. 1929 |
| FREQUENCY
RANGE & POWER CONSIDERATIONS IN MUSIC REPRODUCTION 1945 |
| HighFidelity
Speaker (Bass Reflex) probably first use of system 1936 |
| Indicator
Lamp Characteristics 1945, for radios, autos, toy trains, flashlights,
etc. |
| Philco
radio test instruments catalog, c. 1938, w/parts lists all s (missing
two pages) |
| IMPEDANCE
MATCHING & POWER DISTRIBUTION IN SPEAKER SYSTEMS 1945 |
| RADIO
ANTENNA HANDBOOK by W.W. Smith 1936, excellent text for construction of
various antenna types |
| THE
EFFECTIVE REPRODUCTION OF SPEECH 1944 |
| Sales
Brochure S120A |
| Sales
Brochure SX122A |
| History
of Company Also known as A. H. Grebe & Co., Inc. |
| CB7 |
| Quick
Selector Parts Directory 1947 |
| Radio
Loudspeakers Specifications, Etc. for Most of the Older Philco Radios |
| s
14; 800+ replacement parts charts |
| s
19,38, and 89 Correcting Intermittent Operation Data |
| Theory
and using vibrators, very informative |
| Designing
the SX42 by Bill Halligan & Cy Read, 1946 |
| R.L.
Drake Catalog, 1973 |
| Service
Data, s 14 to 680, data only, no schematics, hard to find information on
how to repair |
| T9
TransWorld & Motorola Weatherama 6X39 technical data |
| Values
of Philco condenser assemblies ( in black bakelite containers, etc.) |
| MODERN
RADIO SERVICING TECHNIQUE excellent text |
| Base
Ultraflex speaker enclosure details and plans |
| SW5 |
| SW5 |
| Radio
Simplified, 1923, good early fundamental text |
| Ballast
tube service manual Uniballast substitution data |
| TUBE
MANUAL 1945, Lists almost all older types, this may be the best of the
best of tube manuals |
| TUBE
MANUAL 1945, Lists almost all older types, this may be the best of the
best of tube manuals |
| Commercial
Killer Circuitry for TV 1955 Article with Schematic |
| Drive
Belt and Ballast Tube Book, covering most receivers |
| How
to Add a Collins Mechanical Filter to a Receiver |
| Field
& Bench Testing of Radio Parts, 1937, very thorough description and
excellent learning text |
| Sales
Brochure S120A |
| Motor
TuneUp with Ignition Analyzers |
| The
Book of Wireless, crystal sets, how to build, many illustrations and
diagrams, text very detailed, 1922, excellent |
| 3Tube
1925 Plans for building this set |
| CATALOG
FEATURING SCHEMATICS OF ULTRALINEAR AMP CIRCUITES, WILLIAMSON, ETC. |
| Crystal
Oscillators, into from 1938 |
| The
Inverse Duplex System c.1927 |
| TECHNICAL
MANUAL W/SCHEMATIC FOR DUAL FREQUENCY CRYSTAL CALIBRATOR 1941 |
| Sales
Brochure SX122A |
| RADIO
TUBE TABLES (Tube Manual), including 01A, 99, etc. |
| RADIO
COURSE MICROPHONES & LOUD SPEAKERS 1937 |
| THE
RADIO NEWS SUPERHETRODYNE BOOK, 1926, schematics & data on superhet
sets |
| RADIO
COURSE AUDIO AND POWER AMPLIFIERS, 1938, |
| History
of Company Also known as Colin B. Kennedy Company |
| Receiver
Hum, Causes and Elimination, 1937, excellent learning text |
| Voltage
Regulator Tube Manual, types OA2, OB2, OC3, OD3/VR150, etc . . . |
| "The
Panadapter" Panoramic, Hallicrafters, etc., schematics and data |
| NaAld
Circuits Including Prof. Haxetines Neutrodyne with Schematic 1923 |
| How
to Recognize, locate & remedy internal receiver noise &
intermittent receiver reception, 1937 |
| How
to Troubleshoot by the point to point voltage & resistance method,
1934, excellent learning text |
| Radio
Weekly, Week of 12/28/1925 |
| SMeter
Circuits |
| S38,
S38A, S38B, S38C & S38D: Exact Size Template to Make Bottom Cover
for Cabinet and Back Cabinet Cover |
| Radio
Weekly, Week of 6/14/1926 |
| Operating
an Amateur Radio Station 1956 A.R.R.L. |
| Crosley
Facts 1932, covers the Crosley plant and refrigerators |
| PROTELGRAM |
| History
of Company |
| XTAL
OSC |
| Service,
Bench and Laboratory testing of Vacuum Tubes, 1937, very thorough text
for the basics |
| TA124A |
| Kit
Builders |
| The
Home Radiophone, construction, operation, illustrations, great text,
1929 |
| History
of Company |
| 26C
limiting aplifier brochure with schematic only |
| 1930
"Building the LoftinWhite" ampllifier |
| Troubleshooting
in AC/DC and battery sets, 1933 |
| History
of Company |
| History
of Company |
| Radio
Batteries, Chargers, and Power Units, 1930, very detailed description of
basic radio elements |
| HQ100A,
HQ145A, HQ180A, HQ110A, HQ170A, HLX1, HX50A sales brochure,
illustrations, equipment & data |
| HQ180A
sales brochure |
| Direct
Stage by Stage Elimination Method of Troubleshooting, 1937, excellent
learning text |
| Six
1928 Plans for building this set |
| M
and E Volume Controls, Switch Installation Instructions |
| Fundamental
D.C. Theory, 1931, good basic text on radio fundamental elements |
| Complete
Collection 16 NRI BOOKS |
| History
of company |
| Audio
Frequency Amplifiers & Radio Speaker Units, 1930, good basics |
| "Rich
Rewards in Radio" 1931 Very historical and interesting text about
the golden age of radio |
| SuperHeterodyne
1926 Plans for building this set |
| Radio
Weekly, Week of 1/04/1926 |
| HQ129X
sales brochure with schematics |
| Servicing
Sound Reproducers & Pickups, 1937, excellent learning text |
| "Be
a radio expert", 1927 text, very interesting information in the
early days of radio |
| How
the Cathod Ray Oscilloscope is used in Radio Servicing, 1937, good text
on how to use |
| VT73 |
| 1926
Plans for building this set |
| Quam
Transformer ChartOlder Output Tubes to Impedance and Turns Ratio |
| Crosley
Facts 1932, covers the Crosley plant and refrigerators |
| The
Tuner, July 1960, Article about the company Hallicrafters |
| History
of Company |
| History
of Company Also known as the William J. Murdock Company |
| 32S1
RTTY Modification Data |
| The
Gomez Super Reflex Receiver 1927 |
| History
of Company Also known as Gilfillan Brothers, Inc. |
| The
How and Why of High Fidelity c.1957 |
| SW
Receivers That Go to Sea, 1934 |
| KTRAN
IF Transformers 262 and 455 KHz, 4.5 & 10.7 MHz |
| 1947
Vibrator Guide same as above but later version |
| SCHEMATICS
& PARTS VALUES OF AMPLIFIERS & TRANSFORMER SPECIFICATIONS |
| HERE'S
HOW, Tested ideas to solve volume control problems 1943 |
| Super
Selective 1927 Plans for building this set |
| History
of company also known as Paragon |
| Transoceanic
New Phantom 1927 Plans for building this set |
| OCEAN
HOPPER |
| 101
RADIO HOOKUPS, 1930, Typical & specific manufacturer circuits by
numbers |
| NC100
and NC100A Factory Service Data |
| Servicing
Broadcast & All Wave Superhetrodyne Receivers, 1937, excellent
learning text |
| "Superhetrodyne,
First Detectors and Oscillators" |
| History
of company also known as AC Electrical Company |
| HISTORY
OF HEATHKIT Reprint Very Detailed |
| 1941
Vibrator Guide Auto receivers listed by mfgr or name of auto and of
radio, 19321947, very complete |
| 9
1926 Plans for building this set |
| Wireless
Telegraphy & Telephony, 1912, by A.P. Morgan, 156 Illustrations |
| DC
Dry Electrolytic Cpacitors, construction theory circuitry, 1942 text |
| SW
Receivers for Yachts, 1934 |
| 1927
Plans for building this set |
| "Radio
Starts and Stations", c 1932, lists stations and stories about
radio stars of that time |
| Super
10 1926 Plans for building this set |
| Plans
for building this set |
| 1949
Communication Receiver Catalog |
| History
of company |
| "Data
on All Philco Speakers, reconing, service, etc |
| Transformers,
1935, A Very Detailed Book |
| Transistors
vs. Tubes for HiFi 1964 |
| Tricks
of the Trade c.19361937 (receiver trouble versus remedy troubleshooting) |
| TROUBLESHOOTERS
REMINDER CHART FOR COMMON AUTO RADIO SET TROUBLES |
| TUBE
SOCKETS AND BASE PIN NUMBERING SYSTEMS |
| Tube
Tester Circuitry Explained |
| TUBE
TESTERS Important Things About Their Selection & Operation |
| TV
Channel Frequencies Table |
| TV
Picture Tube & CRT Rejuvinators & Brightners 1952 |
| Troubleshooting
Hum problems in radio and audio circuits, 1949 |
| Speaker
Baffles nearly all types illustrated, how they work, etc. |
| Standard
Transistor Outlines |
| The
Electrostatic Load Speaker, 1929 |
| Standard
Light Bulbs Used as Power Resistors (How To) |
| Square
wave applications, 19381942 |
| The
Evolution of the Communication Receivers |
| The
Karlson Speaker Enclosure characteristics and construction details |
| Spectrum
Analyzers, 1965 |
| Special
tube data for Raytheon gassious rectifier types BH, BR, ETC., AND DATA
FOR WD11 & many other types. |
| Speaker
repairs anyone can make, 1955 (you will need this data) |
| Speaker
Enclosure Types 1956 |
| Shielding
in HiFi Equipment |
| Speaker
Dividing Networks Explained |
| The
Decibel System Explained |
| The
Mos Fet Explained |
| Sound
on wire and tape, very early article, 1939 (prewar data on wire/tape
recording before any were made) |
| The
National HRO Communications Receiver Tested 1935 |
| Solid
State Theory c.1966 (simplified easy to understand text) |
| The
National HRO500 A Test and Specifications |
| The
New Exponential Horn (Audio) 1927 |
| SMeters
and SUnits Explained |
| SMeter
calibration technique for communications receivers, 1948 |
| SINGLE
LAYER AIRCORE COIL DESIGN CHARTS |
| The
Operation Amplifier Explained |
| Reflex
10Circuits (2Tubes) 1925 Plans for building this set |
| The
Man Who Knew All About Radio 1925 |
| That
Vile Interference (Get Rid of Radio Interference) |
| SUMMARY
OF IMPORTANT RADIO & SERVICING FORMULAS |
| Stereo
Multiplex FM Adapter Circuits (Tubes) 1961 |
| Super
Hilodyne 1928 Plans for building this set |
| How
to build an electrolytic capacitor "restorer" (ReForm Plate),
c 1961 |
| Super
Reception on Short Waves (antenna designs for short wave listening) |
| TELEVISION
A 1928 Periodical of early disk scanner tv equipment w/pictures,
illustrations and schematics |
| Television
Interference Remedies |
| Tesla
Coil Plans for small unit |
| Tesla
Tames Tornados In His 79th Year, Nicoli Tesla Claimed To Be Able To Stop
A Tornado Short Article Gives Details 1933 |
| Testing
semiconductors with a VOM or VTVM |
| Testing
the Ecophone EC2 Communications Receiver 1941 |
| The
electronics of flourescent lamps, 1959 |
| Testing
the Hammarlund SuperPro 1936 |
| The
EchoPhone (Antique Acoustical Phonograph) Very Early Sales Brochure |
| The
Type 2B6 tube, amplifiers, circuites, etc, c. 1933 |
| The
"Air Cell" grid bias cell, 1935, schematic of audio amp using
22B6 twin directly internally coupled triodes |
| THE
32 COLONIAL SCREEN GRID RADIO c 1932, BEAUTIFUL CONSOLES |
| The
Agonies of Major Armstrong Inventor of Super Het |
| Stereo
Multiplex Explained |
| The
BeamAScope Antenna |
| The
Big Ear Spy Device How to Plans |
| The
Birth of a Loudspeaker Scenes Inside the Electrovoice Plant 1955 |
| THE
BOSTON POST BOOK OF RADIO KNOWLEDGE 1926 excellent "how to"
text with photos/schematics |
| The
Bypass Capacitor, 1962 |
| Servicing
radio oscillators, 1944 |
| Testing
the Hammarlund Super Pro Communications Receiver 1936 |
| Receiving
tube characteristics, base diagrams and replacement tube type charts
lists nearly all old tube types. |
| Replacing
If Coil Windings 1940 |
| Replacing
a Loop Antenna with a Ferrite "Loop" Unit |
| Repairing
portable tube radios, 1956 |
| Repair
That Speaker, how to repair speakers with damaged cones |
| Regenerative
Interflex 1925 Plans for building this set |
| Reflective
Optical System for Projection TV by Dr. V.K. Zworykin 1947 |
| RECTIFIER
AND BVOLTAGE FILTER CIRCUIT DESIGN DATA |
| Z13
Radio Receiver Service Data |
| Recognizing
Antenna Types |
| The
Technique of "Backscatter" in Radio Signal Prop |
| Simple
emergency test equipment you can make, 1951 |
| RECEIVING
TUBE CLASSIFICATION CHART BY INTERNAL STRUCTURE, USE, ETC. |
| Resistance
and temperature cofficient of 45 common types of metals and resistance
alloys. |
| The
True Story of Heinrich Hertz written in 1935 |
| The
Tunnel Diode, 1961 |
| The
Western Electric Type 231D Tube Data Sheet (similar to type 99) |
| REACTANCE
& RESISTANCE IN SERIES OR PARALLEL (CHARTS) |
| The
Zenier Diode , 1961 |
| The
Zenor Diode Explained |
| Three
ads for wireless equipment c.1914 |
| TIME
CONSTANT CHARTS FOR RESISTANCECAPACITANCE & RESISTANCEINDUCTANCE
CIRCUITS |
| Radiotherapy
on Short Waves by Lee DeForest 1943 |
| Time
Constants what they do, 1956 |
| Tone
Control and Equalizers 1947 |
| Reception
Difference Broadcast Band vs. Short Wave Bands 1935 |
| RMA
FIXED RESISTOR & RESISTOR CORD COLOR CODE CHART |
| Servicing
Intermittents in radio circuits, 1949 |
| Sentinel
Radio Portable Radio Receivers Sales Brochure |
| SCHEMATICS
& PARTS VALUES OF AMPLIFIERS & TRANSFORMER SPECIFICATIONS |
| Schematic
Symbols used in Radio Diagrams |
| Schematic
Symbols Used in Radio (Chart) |
| The
Phillips projection tv system, 1948 |
| Sample
QSL Requests in Different Languages for SWL's. |
| S9
Signals by A.L. Munzig, 1934, excellent data on antennas and propagation |
| Room
Acoustics for HiFi Listening |
| RMA
TYPE NUMBER DESIGNATION SYSTEM FOR ALL STANDARD TUBES |
| RMA
POWER, IF, INTERSTAGE AUDIO, AND OUTPUT XFMR LEAD COLOR CODE |
| Replacing
selenium rectifiers with silicon diodes, c 1964 |
| The
Radio Antenna Book by Radio Magazine 1936, the Design of Many Different
Antennas, Theory, Etc. |
| Replacing
speaker cones, 1950 |
| RMA
FIXED CONDENSER COLOR CODE CHART |
| THE
RESISTOR/CAPACITOR COLOR CODE (Nearly all old & new types depicted) |
| RMA
FIXED COMPOSITION RESISTOR PREFERRED VALUE CHART |
| The
Secret Tube That Changed World War II |
| RMA
DYNAMIC SPEAKER LEAD COLOR CODE & PLUG CONNECTIONS |
| Rider
Index for Volumes 1 through 5 abridged |
| RESISTANCE/CURRENT/VOLTAGE
POWER RATING CHART FOR RESISTORS |
| Resistance
coupled amplifiers Operating & Circuit Design Data (includes data
for phase inverters and AF amps. |
| The
Shortwave Beginners Book, How to build shortwave sets, 1934 |
| RESISTANCE
CHART REACTANCE OF INDUCTANCES & CAPACITANCES AT FREQUENCIES TO 1mc |
| Radioclast
The Latest Radio Swindle 1944 |
| The
Q Code, RST System and Radio Abbreviations |
| ABC
OF TELEVISION or SEEING BY RADIO, R.F. Waters, 1929, Full of
illustrations, flying spot tv systems, etc. |
| A
modern crystal set, 1946 a more elaborate circuit |
| A
push pull crystal receiver, 1949 |
| A
Simple FM Converter Old 4050 MHz to New Band 88108 MHz c. 1946 |
| A
SolidState Flashlight Signal Injector (Small) (Plans) |
| A
SuperHighQualityAudio B.C. Band Tuner |
| 1959
"Restoration of wireless equipment", very good text on
restoration of old equipment |
| A
unique crystal set, 1925 |
| A
Kissing Meter That's Right! You Can Buold A "Osculation
Indicator" You Just Hook One Test Lead to the Boy & to the
Girl. |
| Adaptol
tube adapters chart |
| Adventure
into the Unknown by L. Hawkins, The first fifty years of GE Research
Labs 1950, very historical rare facts |
| ALL
ABOUT AERIALS AND THEIR CONSTRUCTION, 1922, Text plus 12 aerial plans |
| All
about ballast and resistor tubes, c 1939 |
| An
AddOn SMeter for Comm. Receivers, Etc. |
| An
Electrolytic Capacitor Restoring Unit (Plans) |
| A
Tester for 6Volt Car Radio Vibrators (Plans) 1951 |
| A
DirectReading SoundMeter You Can Build |
| How
to Choose a ShortWave Receiver Article 1937 shows Crosley 37tube |
| A
$6.00 Automobile DashMounted Tachometer (Plans) 1967 |
| A
1966 Guide to Communications Receivers |
| A
1Tube Loudspeaker Radio (Plans) 1950 |
| A
beginners radio set plans for a crystal sset |
| A
Big Tesla Coil (Plans) |
| A
loud crystal radio, 1945 |
| A
Crossover with Brilliance 1957 |
| A
Large Series of Articles on Dr. Lee DeForest, the Father of Radio 194447 |
| A
Drainpipe Speaker Enclosure |
| A
Glossary of Receiver Complaints tables of troubles verses possible
causes |
| A
HiFi Speaker Enclosure from a Plastic Waste Basket |
| A
history of radio, 1924 probably one of the earliest?? |
| A
History of Time/Frequency Standards Station WWV |
| Audio
Frequency Networks 1947 |
| A
Broadcast Band Amplified Ferrite Loop Antenna |
| Charts
Frequency vs. Inductance/Capacitance Values, 1927 |
| An
SWL Antenna Tuner 1963 (Plans) |
| C.
Francis Jenkins, TV adventurer, 1948 |
| CathodeRay
Testing & Analysis by Kendall Clough, 1935, (oscilloscope use) |
| Ceramic,
Plastic Film, Paper, and Mica Fixed Capacitors |
| CHART
FOR DETERMINING WHEN TO REPLACE A CONDENSER WITH CHANGED CAPACITY |
| Chart
of dimensions & specs of 12 leading makes of A, B, and AB batteries
for portable & farm radios. |
| Building
the Loftin White Amplifier, 1930 |
| Chart
of replacement & comparable batteries for 1250 s of portable radio
receivers. |
| Build
your own Paramic Adapter, 1954 |
| CLASSIFIED
DIRECTORY OF MANUFACTURERS OF 17 DIFFERENT KINDS OF RADIO TEST
EQUIP(1941) |
| CLASSIFIED
DIRECTORY OF RADIO ACCESSORY MANUFACTURERS (TO 1941) |
| CLASSIFIED
DIRECTORY OF RADIO PARTS MANUFACTURERS (1941) |
| CLASSIFIED
RADIO TRADE DIRECTORY (1941) Many trade names linked to Specific
Manufacturers |
| Coil
Winding Data |
| Coil
Winding Machine, instructions, you could build this yourself |
| CHART
OF GRIDBIAS RESISTOR VALUES & WATTAGE RATINGS FOR ALL SELFBIASED
TUBES |
| BATTERY
CONNECTING INSTRUCTIONS FOR RADIOLA IIIA & BALANCED AMPLIFIER |
| 1955,
Characteristics, etc of phonograph pickups |
| AUTOMATIC
TUNING (How it works) mechanical, electrical, and electricmotordriven
systems, an excellent text |
| AUTOMOBILE
RADIO VIBRATOR BUFFER CAPACITOR REPLACEMENT CHART TO 1941 |
| Automobile
Tachometer Plans No Tubes or Transistors |
| Automobile
Tachometer Plans Solid State Circuitry |
| BALLAST
TUBE DATA Resistance Data & RMA Designation Code |
| Building
the Raytheon BEleminator power supply |
| BATTERY
CABLE LEAD & PHONOGRAPH MOTOR LEAD COLOR CODE CHART |
| Audio
Amplifier Power Ratings Compared |
| Bigger
Bass from small Broadcast sets, 1961 |
| Broadcast
Microphones 1946 |
| Build
a Modern Crystal Set 1964 |
| Build
a small Tesla Coil with T Ford Spark Coil, 1960 |
| Build
a SolidState Theremin Musical Instrument |
| Build
an Electrostatic Tweeter 1959 |
| Bankers
Life Map, 1924, US Principal Radio Stations |
| History
of Company |
| Capacitor
Troubleshooting |
| "Capacitor
Troubleshooting" |
| History
of Company |
| History
of Company Also known as the Spark Withington Company |
| Characteristics
of their tubes, No Base Diagrams |
| 4Tube
Superdyne 1925 Plans for building this set |
| Electronic
Solovox Article and Schematic (Musical Instrument) |
| Letter
to Zenith stockholders signed by E.F. McDonald Jr., 1938 |
| History
of Company |
| N
Circuit 1927 Plans for building this set |
| "1001
uses for the 260 V.O.M." (Good For Any V.O.M. |
| The
Chicago Radio Laboratories Probably the First Catalog! s : MGR2, CW1,
CW2, PR1,(aka Zenith) |
| TR1,
AM1, AM2, AD1, AGN1, AGN2, AGN3, Paragon SW All Early Wireless Receivers
and Transmitters |
| Zenith
automatic record changer instruction, c. 1938, not cobra arm type
(earlier) |
| History
of Company Also known as Sonora Phonograph Company |
| Characteristics
of Receiving Tubes All Old Types 01A, 99, etc. |
| TUBE
MANUAL, Lists all older types including 00, 01A, V99, X99, etc. |
| TECHNICAL
MANUALSYLVANIA RADIO TUBES, 1937, 01A, 99, etc., listed |
| SYLVANIA
TUBE SUBSTITUTION MANUAL (very detailed older types) c. 1950 |
| Sylvania
Tube Chart & Substitution 1960's |
| SYLVANIA
RADIO TUBES, 1945, 01A, 99, most older types listed |
| How
to service radios with an oscilloscope, 1949 |
| 1926
Plans for building this set |
| Characteristics
of Receiving Tubes All Old Types 01A, 99, etc. |
| SERVICE
GUIDE Lists sets by manufacturer and number etc. |
| 21
Circuits for Germanium Crystal Diodes c. 1948 |
| History
of Company |
| 1927
Plans for building this set |
| History
of Company |
| History
of Company |
| "Audio
Amplifier Checking with Oscilloscope", good text, c. 1937 |
| FIFTY
YEARS OF INNOVATION (very historical with photos, etc.) |
| 1934
A 1934 DoubleHetrodyne communication receiver, by Matthews |
| ZENITH
PRODUCT INFORMATION FOR DEALERS, 1948 |
| 1924,
"The Sodion D21 Detector Tube" |
| 1926,
Alleviation of static in reception (very good article, helpful) |
| 1928,
"What's a good loudspeaker" |
| 1928,
How to make coils good info |
| 1932
Tradename index listing tradenames with actual manufacturer names great
for finding schematics for old radios |
| 101
Ways to Use Your Sweep Generator |
| 1933,
"The Ten Most Popular Short Wave Receivers", plans, etc and
lots more |
| "The
Story of the Buried Antenna", 1926 |
| 1934,
"How to Build SW Receivers" |
| 1937
Oscillograph design (small units) |
| 1941
CHART OF PREFERRED TUBE TYPE NUMBERS WITH SUGGESTED STOCK QUANTITIES |
| 1941
CHART OF PREFERRED TUBE TYPE NUMBERS WITH SUGGESTED STOCK QUANTITIES |
| 1948,
"What is SSB Telephony?", good technical text on subject of
this mode of transmission |
| 1954,
How to use an oscilloscope, good text on how to use one of these in
testing of radios/tv |
| 1932
Tradename index listing tradenames with actual manufacturer names great
for finding schematics for old radios |
| "How
to choose the right pickup"" phonograph cartridge information |
| COMMON
RADIO TROUBLES STAGEBYSTAGE (Chart), 1942 |
| "Building
Superhetrodynes", 1925 |
| "Buried
Aerial Reduces Static", , 1927, very interesting information |
| "Control
of Damping Factor" variable damping factor in audio amplifiers |
| "Control
of Damping Factor" variable damping factor in audio amplifiers |
| "Developing
the possibilities of a horn", (loudspeaker), c. 1928 |
| 1923
Radio broadcasting station directory, and trouble finder for 1923
receivers |
| "How
to choose the right pickup"" phonograph cartridge information |
| "An
Inverse Duplex Receiver (Plans), 1926 |
| "How
to make your own TV set", 1928 |
| "How
to replace tube type 5Y4 with 5Y3 rectifier" 5Y3 much easier to
find |
| "Loudspeakers",
Horn speakers for battery sets characteristics, 1926 |
| "The
Radio Bottle" (Fleming Valve) by J.S. Fleming, 1923 |
| "The
Snoop Loop" portable transistorized loop antenna for station
finding |
| "The
Story of Radio and Telephony (very old) |
| "How
to build a transistorized vibrator substitute for car radios" |
| Microphones
explained for Beginners 1938, carbon, ribbon, condenser, moving coil and
crystal w/illustrations |
| Magnet
Wire Data, Gauges, Current Carrying Capabilities" |
| Major
Armstrong's Frequency Modulation System 1935 |
| Match
Your Speakers The Easy Way how to calculate & match your speakers
with the 70volt line |
| Mechanical
Appliances Movements and Perpetual Motion Novelties of Construction |
| Methods
for Coupling from a Signal Generater to a Radio Receiver 1940 |
| COMMON
FRACTIONS & THRIE DECIMAL & METRIC EQUIVALENTS CHART |
| METRIC
PREFIXES USED IN RADIO WORK AND CONVERSION FACTORS FOR THEM |
| Loudspeaker
Testing and Measurement 1961 |
| Military
Tube Tester TV7/U Series Supplentary Test Data |
| MODERNIZING
OLD RECEIVERS BY SUBSTITUTING NEWER TYPE TUBES (1941) |
| Most
Often Used Radio/Electronics Math Formulas |
| Nearly
All Types of Diodes Theory How to Use, Etc. |
| Neon
Lamp Circuits |
| Neon
Lamps Characteristics Theory |
| Methods
of Oscillator Control in Stabilized Receivers 1926 |
| INSTRUCTIONS
FOR BUILDING PHONO OSCILLATOR (PLAY RADIO PROGRAMS THRU SET) |
| How
to Reset Tuning PushButtons 1941 |
| How
to select RF chokes, 1966 |
| HOW
TO SERVICE RADIO SPEAKERS, RECONING, ETC. |
| HOW
TO USE EXPONENTS IN RADIO CALCULATIONS |
| How
to Use Your Oscilloscope measuring voltage, current, time, frequency,
& phase excellent text w/pictures, etc. |
| IF
ALIGNMENT "PEAKS" FOR 20,173 SUPERHETRODYNE RECEIVERS |
| MAGNET
WIRE DATA TABLE (gauges, current carrying capacities, etc.) |
| IMPEDANCE
MATCHING WITH 29 SPEAKERS |
| Loudspeakers
by Paul Klipsch 1957 |
| INTERPRETATION
OF RMA RECEIVING TUBE RATINGS |
| Int'l
"AT A GLANCE" Radio valve substitution manual Lists American
equivalents w/many types of foreign mfgrs. |
| Limiter
Discriminator vs. ratio detector |
| LITZ
WIRE SIZE, WEIGHT & DATA CHART |
| LOUD
SPEAKER DESIGN & APPLICATION (1942 text) |
| Not
To Be Broadcast by Ruth Brindze, 1937, amazing facts about radio
broadcasts of that era, star's earnings, etc. |
| IF
TRANSFORMER CONSTRUCTION, TROUBLES, SERVICING & REPLACEMENT |
| Radio
Aboard the Hindenburg (Dirigible) 1936 |
| NickelCadmium
(NiCad) and Mercury and CarbonZinc Batteries 1965 |
| Power
supply filter design, 1945, important info |
| POWER
TRANSFORMER DESIGN CHART |
| PRACTICAL
WIRELESS TELEGRAPHY, 1917, by E.E. Bucher, Full of illustrations,
Marconi transatlantic radio, text, etc |
| Prefix
Names From 10(18) to 10(12) |
| Presenting
The MultiImage TV Receiver, 1935 |
| Plans
for Electric Tic Tac Toe Game |
| Questions
About Radio Reception 1935 |
| Plans
for 4 Different Crystal Sets |
| Radio
Frequency Amplification 1926 |
| RADIO
HOOKUPS by M.B. Sleeper 1922, Many schematics, xtal sets, spark xmtrs,
early batt tube sets w/texts |
| RADIO
PHONOGRAPH SERVICE DATA THEORY + MANY MECHANICAL DIAGRAMS |
| Radio
Plans Solid State No Batteries or Power Used |
| RADIO
SERVICE TRADE KINKS by L. Simon, 1939. A listing of hundreds of case
histories of trouble symptoms and more |
| Radio
Trade Directory, Parts Manufacturers, 1947 |
| Principles
of Transformer Design 1929 |
| PARALLEL
RESISTANCES SERIES CAPACITANCES CALCULATION CHART |
| How
to Make a Simple Tesla Coil 1920 |
| Novelties
of Construction in Radio Equipment; c. 1927 |
| OHM'S
LAW CHART (Graphic determination of DC current, volts, resistance,
watts) |
Radio
Era Archives -
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