RCA App Notes
Tech's Filing Cabinet Miscellaneous General Electric RCA VTP-HWU-MU Hughes Military Raytheon

Application Notes target the design engineer with ideas and assistance in designing-in RCA products. Distributed to the general public. These came from the Harold Ulmer collection.

RCA 1958 AN-174 Design-Maximum System for Rating Electron Tubes - Definition of Design-Maximum rating system, compared to the old Design-Center and Absolute-Maximum systems. Includes the 30-page JETEC J5-C3 spec which shows the development of the Design-Maximum system in a variety of circuits. Important.

RCA 1960 AN-187 Photometry as Applied to Camera and Cathode-Ray-Tube Applications - Definitions and measurements of camera, CRT, and scene lighting.

RCA 1960 AN-188 Comparison of Picture-Tube Performance in Grid-Drive and Cathode-Drive Service - Cathode drive is more sensitive but has more defocussing than grid drive.

RCA 1960 AN-189 New 100-Ma Tubes for 120V Series-Heater-String Home Radio Receivers - Replacing the "All-American Five" tubes with the new 100 mA tubes. Also a low-cost four-tube radio.

RCA 1960 AN-190 AC-DC Stereo Amplifiers Using Output Tubes Having 100 mA Heaters - Three different low-cost amplifiers using the new 100 mA tubes.

RCA 1961 AN-191 RCA 6CW4 and 2CW4 Nuvistor Triodes as RF Amplifiers - Improvement in RF performance in TV tuners using Nuvistors.

RCA 1961 AN-192 Use of the 6939 UHF Twin Power Pentode in RF-Amplifier and Frequency-Tripler Service - Aplication of the 6939.

RCA 1961 AN-193 Use of the 7587 Industrial Tetrode - Benefits of the Nuvistor tetrode.

RCA 1963 AN-195 Noise and Gain of the 8056 Nuvistor Triode at 200 Mc - A low-voltage Nuvistor RF amplifier.

RCA 1963 AN-196 Temperature Ratings and Thermal Considerations for Nuvistor Tubes - How to keep your Nuvistors cool.

RCA 1963 AN-197 New High-Gain Tubes for IF-Amplifier and Limiter Stages of FM Tuners - The 6HR6 and 6HS6. These were the only high-performance RF/IF pentodes that had the same pin-out as the 6AU6/6BA6. Unfortunately, they came late in the game and are now very scarce.

RCA 1963 AN-199 Snivets - "Snivets" or Barkausen oscillations in TV sweep tubes and how to reduce them.

RCA 1963 AN-200 Techniques for Measuring Electron-Tube Bulb Temperatures - A simple way of measuring bulb temperature.