Accession Number:

AD0276638

Title:

INTEGRATION COMMITTEE REPORT, MINIATURE GLASS ENCLOSED CRYSTAL UNITS, TYPE CR-(XM-29)/U

Descriptive Note:

Corporate Author:

KNIGHTS (JAMES) CO SANDWICH ILL

Personal Author(s):

Report Date:

1962-12-01

Pagination or Media Count:

1.0

Abstract:

Effort was continued to devise production methods and tools for the production of 500 type-CR-XM- 29U crystal units per eight hour shift. Units were housed in miniature glass enclosure, type HC-26U. Three types of crystal mounts were investigated. The most favored was the modified version of the tab clip. This version may be used without a dimple hole through which cement can be applied. Several epoxy cements were tested. Cements considered favorable were, bakelite-silver, sodium silicate, silpaint, and pyroceram. Pyroceram was the most favorable. A sealing machine was fabricated for use with the HC-26 glass enclosure. Frequency shift was noted during sealup. When epoxy cements were used shifts from 1-5 ppm plusminus the original frequency were indicated. With pyroceram cement shifts from 10-20 ppm positive were indicated. Two methods were tested for sealing with the sealing machine without use of gas flame. These methods were abandoned as control of gas flame developed.

Descriptors:

• *CRYSTAL HOLDERS
• *CRYSTAL OSCILLATORS
• *HEATING ELEMENTS
• *SEALS(STOPPERS)
• GLASS SEALS
• MANUFACTURING
• MINIATURE ELECTRONIC EQUIPMENT
• PREPARATION
• PROCESSING
• QUARTZ
• VACUUM SEALS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE