HD 146 S4:1988

Overview

The HD 146 S4:1988 standard, developed by CLC, specifies the dimensional requirements and tolerances for electronic tubes and valves. It covers essential components such as bases, holders, and caps to ensure consistent interchangeability across manufacturers and applications. The standard also defines the relevant gauges and the proper gauging procedures required for accurate measurement. As a living document, it is provided in a loose-leaf format with ongoing supplements that introduce new or revised dimensional sheets and guidelines.

This standard is vital for engineers, designers, and manufacturers working within the electronics and telecommunications industries to maintain compatibility and quality control for electronic tube components.

Key Topics

• Dimensions and Tolerances
  Defines precise measurements for electronic tube and valve bases, holders, and caps to guarantee fit and interchangeability.
• Gauges and Gauging Procedure
  Establishes the tools and step-by-step procedures for measurement to ensure consistency in production and testing.
• Drawing Preparation
  Provides recommended practices for creating technical drawings of electronic tubes and valves, which helps maintain clarity and uniformity in documentation.
• Loose-leaf Format
  Allows for continuous updates and supplements, keeping the standard current with technological advancements and market needs.

Applications

• Product Design and Development
  Ensures electronic tube and valve components conform to recognized dimensional standards, promoting reliable and efficient product design.
• Manufacturing Quality Control
  Enables manufacturers to use standard gauges and procedures to verify dimensions during and after production, helping maintain high quality.
• Interchangeability Across Brands
  Facilitates compatibility between tubes and valves from different manufacturers, reducing replacement issues and enhancing system integration.
• Technical Documentation
  Provides clear guidelines for drawing and documenting electronic tubes and valves, aiding technical communication and inventory management.

Related Standards

• IEC 60034 Series - Standard for rotating electrical machines, which may integrate tubes and valves requiring dimensional consistency.
• ISO 1000 Series - Covers technical drawings and dimensioning guidelines complementary to HD 146 S4:1988.
• CLC Standards on Electronic Components - Broader standards focusing on component specifications and testing for electronic parts.

Adherence to HD 146 S4:1988 is essential for maintaining global interoperability, facilitating maintenance, and supporting innovation in technologies reliant on electronic tubes and valves. Its comprehensive approach to dimensions and gauging ensures uniformity and compatibility throughout the electronics industry.