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• Minimizing the Effect of Cutoff in TV Vertical Oscillators

Publication Year: 1958, Page(s):52 - 62
Cited by:  Papers (1)
| | PDF (1941 KB)

The vertical oscillator of a TV set, whether a multivibrator or a blocking oscillator, can be very dependent upon the cutoff characteristic of the tube. It can affect the speed or frequency of the oscillator, the linearity and the synchronizing characteristic. There are several classes of cutoff current of the tube, namely that which is controlled by the grid voltage and that which is uncontrolled... View full abstract»

• A Two-Stage DC Coupled Transistor Video Amplifier

Publication Year: 1961, Page(s):72 - 79
Cited by:  Papers (1)
| | PDF (874 KB)

This report describes a three-transistor d.c. coupled video amplifier. The low frequency gain, thermal stability., input impedance, frequency response, distortion, rise time and signal handling capability of the amplifier are discussed and the results of the measurements are given. View full abstract»

• Automatic gain control of transistor amplifiers

Publication Year: 1955, Page(s):1 - 15
| | PDF (1450 KB)

Due to the dependence of transistor small signal parameters on the dc operating point, the gain of a transistor amplifier is function of the emitter current Ie and of the collector voltage Vc. An analysis of the variation of the series-parallel transistor parameters hij with the operating point shows that the gain decreases with decreasing Ie or decreasing Vc in the region of small values of Ie an... View full abstract»

• A New Self-Oscillating Frequency Converter

Publication Year: 1955, Page(s):29 - 35
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First Page of the Article
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• Circuit Aspects of Parametric Amplifiers

Publication Year: 1959, Page(s):75 - 82
Cited by:  Papers (28)
| | PDF (936 KB)

Parametric amplifiers are distinguished from most active networks in that power is taken directly from an a-c source and that the phase of this source is significant in the amplification process. As a consequence of the harmonic spectrum produced by the interaction of the power source (pump) and the nonlinear element, the introduction of a small signal generates a pair of sidebands about each harm... View full abstract»

• Design of Stereophonic Receiver for a Stereo System in the FM Band using an AM Subcarrier

Publication Year: 1961, Page(s):67 - 72
Cited by:  Papers (2)
| | PDF (1158 KB)

From the FM discriminator in the receiver we derive the composite signal containing a low frequency audio signal, a modulated subcarrier and a pilot signal related to the subcarrier. The stereophonic signal demodulator can operate on the composite signal in such fashion as to produce directly a left and right stereophonic signal. View full abstract»

• An Ultra-Low-Distortion Transistorized Power Amplifier

Publication Year: 1961, Page(s):81 - 87
Cited by:  Papers (2)
| | PDF (2485 KB)

The development of a new type of power transistor has made possible the construction of ultra-high-performance audio-frequency amplifiers which can equal the performance of the finest vacuum-tube amplifiers available. The design, construction, and performance characteristics of such an amplifier, using RCA drift-field power transistors, is discussed. The amplifier is capable of providing a power o... View full abstract»

• A High Performance FM-AM Automobile Receiver

Publication Year: 1962, Page(s):86 - 91
Cited by:  Papers (1)
| | PDF (2736 KB)

The design of an FM-AM receiver poses a variety of problems peculiar to the automobile environment. Techniques relating to AM performance are well known and will not be covered in this paper except where FM and AM circuitry are common or possibility of interference exists. The FM problems encountered are those concerned with the design of any good quality FM receiver plus those associated with sat... View full abstract»

• A Precision-Tuned Receiver Employing Solid-State Tuning Elements

Publication Year: 1961, Page(s):39 - 46
Cited by:  Papers (1)
| | PDF (1710 KB)

The capability of rapid frequency selection coupled with crystal controlled tuning accuracy are the salient features of this solid-state receiver. The heart of the system is a discrete local oscillator. It consists of an electronically tuned oscillator which is phase-locked to a selected harmonic of a master crystal. Since there are no mechanical adjustments necessary, the receiver can be built in... View full abstract»

• Stagger-Tuned Transistor Video Amplifiers

Publication Year: 1956, Page(s):53 - 56
Cited by:  Papers (1)
| | PDF (597 KB)

A method of analyzing common-emitter transistor video amplifiers has been given that is sufficiently simple and accurate for design work. This paper discusses the use of the above design method for the purpose of obtaining RC-coupled stagger-tuned video amplifiers. For a poles-canceling-zeros scheme, the design equations are given relating external circuit parameters to desired response shape and ... View full abstract»

Publication Year: 1958, Page(s):68 - 77
Cited by:  Papers (2)
| | PDF (1377 KB)

The development of the transistor has progressed to the point where practical video amplifiers of quality comparable to those of vacuum tubes can be designed. Limitations such as collector-emitter voltage, power, and alpha cut-off frequency continue to pose problems in designing a one stage video amplifier. View full abstract»

• A Two-Transistor FM Broadcast Band Tuner for a 12-Volt Automobile System

Publication Year: 1962, Page(s):74 - 84
Cited by:  Papers (1)
| | PDF (2006 KB)

Commercial FM broadcast-band vacuum-tube receivers have been with us for many years. Generally they have been of the relatively expensive, high-fidelity, entertainment type. However, with the advent of competitive transistors having VHF capabilities, the FM receiver market has been considerably expanded. Our country alone saw the birth of 173 new FM transmitting stations in the last sixteen months... View full abstract»

• Considerations in Transistor Automobile Receiver Front End Design

Publication Year: 1959, Page(s):31 - 37
| | PDF (798 KB)

This paper discusses the requirements which must be considered in the design of an r-f amplifier stage and converter for a transistor automobile receiver. Several coupling networks for the antenna and interstage circuits are discussed and performance data is given for various combinations of circuits. Data is given for a converter circuit including voltage and temperature effects on frequency stab... View full abstract»

• Transistorized Television Vertical Deflection System

Publication Year: 1957, Page(s):98 - 105
Cited by:  Papers (7)
| | PDF (1685 KB)

Currently available power transistors are capable of driving the deflection coils of large screen television sets without impedance transformation. Direct-coupled, single-ended deflection amplifiers, and problems and their solutions relative to decentering due to dc yoke current components, are discussed. View full abstract»

• ICO - Where and How much

Publication Year: 1962, Page(s):19 - 21
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First Page of the Article
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• Practical Aspects of TV Tuner Design

Publication Year: 1957, Page(s):59 - 64
| | PDF (5531 KB)

This paper discusses some of the tv tuner design problems experienced by the author during the product design of tuners used in DuMont Telesets. The subjects discussed are: oscillator radiation, spurious responses, provision for uhf reception, and a typical vhf wafer switch tuner design. View full abstract»

• Vacuum-Tube Requirements in Vertical-Deflection Circuits

Publication Year: 1958, Page(s):3 - 14
Cited by:  Papers (2)
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First Page of the Article
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• Horizontal Scan Non-Linearity in Television Receivers and the Saturable Reactor

Publication Year: 1961, Page(s):14 - 20
| | PDF (1335 KB)

The current trend in cathode-ray tube designs for use in modern TV receivers seem to fall into two categories: (1) More rectangular or squared off'' faceplates in order to provide more viewing area for a given aspect ratio. (2) Increased deflection angles so that the overall length of the CRT may be reduced for a given deflection angle. This is necessary for the popular slimline'' type of cabi... View full abstract»

• A Transistor TV Tuner with a 4.5 DB Noise Figure

Publication Year: 1960, Page(s):67 - 71
| | PDF (2426 KB)

This paper discusses an experimental MADT transistor designed for TV RF amplifier applications and a prototype tuner designed to use this transistor. All of the best techniques available at the present state-of-the-art'' have been utilized in the construction of these experimental units. The last few years have seen a marked reduction in the noise figure, and a marked improvement in the gain, of... View full abstract»

Publication Year: 1955, Page(s):15 - 19
| | PDF (3020 KB)

This is a progress report on vhf-uhf radiation measurements by IRE Subcommittee 27.3. The function of this committee is to develop techniques for the measurement of radio interference generated by fm and TV receivers. This radio interference may cover the spectrum from 300 kc to 1000 mc. View full abstract»

• A Transistor TV I-F Amplifier

Publication Year: 1960, Page(s):17 - 20
Cited by:  Papers (2)
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First Page of the Article
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• A High Sensitivity Ultrasonic Microphone

Publication Year: 1959, Page(s):64 - 69
Cited by:  Papers (1)
| | PDF (2090 KB)

The use of ultrasonic signal transmission for remote control of television receivers has acquired great practical utility. In such a system the microphone is an important component since it determines the required gain and, to some extent, the maximum attainable sensitivity. View full abstract»

• Novel tube and circuit designs for automatic gain controlled broad band intermediate frequency amplifiers

Publication Year: 1962, Page(s):139 - 160
| | PDF (3739 KB)

A special pentode tube for broad band intermediate frequency amplifier application is designed with the purpose of eliminating cathode degeneration while maintaining the capability to control the gain. The amplification of the stage is further increased by utilizing the space charge coupling between the plate current and suppressor grid. The circuits are developed to move the poles of the amplifie... View full abstract»

• Factors in the Circuit Operation of Transistorized Horizontal Deflection

Publication Year: 1960, Page(s):57 - 79
Cited by:  Papers (4)
| | PDF (3524 KB)

First Page of the Article
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• Transistorized Vertical Scan System for Magnetic Deflection

Publication Year: 1960, Page(s):33 - 38
Cited by:  Papers (2)
| | PDF (3066 KB)

A transistorized vertical deflection system has been developed to scan a 90-degree, 14-inch picture tube at 14 KV accelerating voltage. This system consists of two transistors in a common-emitter multivibrator to form a vertical oscillator, one transistor as a driver and one output transistor, and the system is supplied power from a 12-volt d-c source. To prevent decentering of the raster, due to ... View full abstract»

• Transistor Television Picture if Double Tuned Amplifiers

Publication Year: 1959, Page(s):25 - 32
Cited by:  Papers (1)
| | PDF (2151 KB)

The recent development of suitable VHF transistors has made possible the design of transistors amplifiers at the picture intermediate frequencies. Picture i-f strips using single-tuned circuits have been successfully built.1,2 This paper describes the design of a picture i-f strip using double-tuned circuits. View full abstract»

• A New Compact VHF TV Tuner

Publication Year: 1961, Page(s):29 - 34
| | PDF (3031 KB)

A brief review of the performance requirements and other factors influencing the design of VHF television tuners is presented, including some of the unforeseen problems encountered during development of a new design. The basic electrical similarity between tuners of different manufacturers is pointed out, which suggests that significant design improvement might best be obtained by concentrating at... View full abstract»

• High Voltage Ceramic Transformers

Publication Year: 1962, Page(s):22 - 35
Cited by:  Papers (7)  |  Patents (5)
| | PDF (2253 KB)

A ceramic transformer made from a piezoelectric material such as polarized BaTiO3 can be designed to have a voltage step-up of about 60 at 15 KC/S. The design of such a transformer is described. Equations giving step-up ratio and losses as a function of piezoelectric coefficients and transformer dimensions are derived. Experimental results are given and discussed. BaTiO3 transformers begin to show... View full abstract»

• A Self-Protecting Transistor Power Amplifier

Publication Year: 1962, Page(s):91 - 95
| | PDF (579 KB)

OTL Power Amplifiers (See figure 1.) The basic types of configuration evolve around either complementary pairs, or the full or half-bridge configuration. The complementary circuit requires a split power supply and matched PNP-NPN power transistors. The practicalities in procuring germanium pairs in reasonably high power ratings exclude this circuit from consideration for the high-fidelity audio am... View full abstract»

• An Ultrasonic Remote Control for Home Receivers

Publication Year: 1957, Page(s):8 - 13
Cited by:  Papers (2)
| | PDF (7346 KB)

A remote control system for tv receivers is described which employs ultrasound in the vicinity of 40 kc. Slowly decaying single-frequency signals are produced by striking aluminum rods with a hammer. The receiver employs limiting followed by frequency selection and integration to discriminate against acoustic interference. View full abstract»

• Some Notes on the Hybrid-Pi Transistor Equivalent Circuit

Publication Year: 1958, Page(s):92 - 109
Cited by:  Papers (1)
| | PDF (2604 KB)

First Page of the Article
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• Reliability Considerations in the Application of Power Transistors to Consumer Products

Publication Year: 1962, Page(s):65 - 73
Cited by:  Papers (4)
| | PDF (1603 KB)

First Page of the Article
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• A Compatible Stereophonic System for the AM Broadcast Band

Publication Year: 1960, Page(s):30 - 37
Cited by:  Papers (4)
| | PDF (1224 KB)

Stereophonic broadcasting presents a variety of problems, including compatibility, out-of-band radiation, stereo performance, distortion, signal-to-noise, receiver tuning, and receiver cost. Possible system solutions can be classified as either multiplicative'' or additive,'' depending upon whether the quadrature sidebands representative of the stereo information (L-R) are modulated by the env... View full abstract»

• The Effect on Color TV of Dr. Edwin H. Land's Color Experiments

Publication Year: 1960, Page(s):5 - 12
Cited by:  Papers (1)
| | PDF (1124 KB)

First Page of the Article
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• Television Wireless Remote Control

Publication Year: 1959, Page(s):76 - 80
| | PDF (954 KB)

First Page of the Article
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• Detection of Asymmetric Sideband Signals in the Presence of Noise

Publication Year: 1959, Page(s):46 - 75
Cited by:  Patents (7)
| | PDF (3821 KB)

The first part of this paper analyzes three methods of detection of signals contaminated by fluctuation noise: (1) Linear Envelope Detectors (2) Product Detectors (3) Exalted Carrier Detectors. A new ratio, the video-to-noise-error ratio'' is proposed for a more adequate quantitative evaluation of detector performance. Its use is justified by a large number of theoretical curves and experimental... View full abstract»

• Design of Transistor Vertical Deflection Output and Driver Stages

Publication Year: 1959, Page(s):7 - 17
Cited by:  Papers (4)
| | PDF (1818 KB)

Television vertical deflection circuits using transistors and direct coupling to the deflection yoke have been described. Although techniques for compensation for the large average flux in the yoke are known they suffer from difficulties with linearity, raster distortion and power consumption. A circuit which uses direct coupling to the yoke requires approximately twice as much power from the batt... View full abstract»

• Linearization of a Transistorized Vertical Deflection System

Publication Year: 1960, Page(s):39 - 47
Cited by:  Papers (3)
| | PDF (1635 KB)

One of the principal problems involved in the design of a transistorized vertical deflection circuit is obtaining a linear deflection. Non-linearity errors are generated by the transfer characteristics of the driving network, the output transistor, and the output coupling network. The results of these non-linearity errors are cumulative and manifest themselves as deflection distortion. View full abstract»

• Transistorized TV Horizontal Deflection and High Voltage System

Publication Year: 1958, Page(s):19 - 35
Cited by:  Papers (3)
| | PDF (5292 KB)

Measurements on tube deflection systems allow us to determine the deflection power requirements for any given picture tube and yoke. Since the output requirements for a transistor deflection system are thus known, it is convenient to start with an investigation of the deflection output stage. View full abstract»

• Transistor Design for Picture IF Stages

Publication Year: 1957, Page(s):76 - 80
Cited by:  Papers (2)
| | PDF (878 KB)

In addition to the conventional problems of sensitivity, bandwidth, and transient response, the transistor poses several new problems in television IF design due to its power gain mechanism. In particular, the resistive and capacitive components of output impedance dictate that matched power gain can be obtained only at or below matched bandwidth, and definite limits are thereby imposed on the loa... View full abstract»

• Television if Selectivity and Adjacent-Channel Interference

Publication Year: 1959, Page(s):18 - 21
Cited by:  Papers (1)
| | PDF (598 KB)

The general problem of selectivity, as always, is to amplify the wanted frequencies and reject the unwanted frequencies. This is the function of the i-f amplifier and the main reason for using the superheterodyne system at all. In television, the closest unwanted frequencies are the picture carrier of the next higher channel and the sound carrier of the next lower channel. Channels 2, 3, 5, 7, 8, ... View full abstract»

Aims & Scope

This Transactions ceased publication in 1962. The current retitled version is named IEEE Transactions on Consumer Electronics.

Full Aims & Scope