Accession Number:

AD0292910

Title:

PRODUCTION ENGINEERING MEASURE FUNDAMENTAL MODE CRYSTAL FOR FILTERS CR(XM-41)+U

Descriptive Note:

Corporate Author:

PIEZO CRYSTAL CO CARLISLE PA

Personal Author(s):

Report Date:

1962-08-09

Pagination or Media Count:

1.0

Abstract:

After establishing a definite set of procedures for manufacturing filter type crystals, groups were run at 10 mc and 15 mc. The 10 units on these two frequencies were completed and passed all test requirements. The 30 mc filter crystals were not passing the spurious requirements until the CoCi ratio was raised to 550 maximum. A temperature coefficient problem was noted on the cultured quartz 30 mc units, the cultured quartz units required a 2 to 3 minute increase in angle to keep them inside the tolerance for temperature drift. With the T.A.R. granted on the capacity ratio, the 30 mc units were completed and passed all tests prior to submission. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE