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National Stock Number:
5960-00-023-8976
Federal Supply Class:
5960
National Item Identification Number:
000238976
Description:
ELECTRON TUBES,MATCHED
Detail:
A GROUPING OF TWO OR MORE SEPARATE ELECTRON TUBES WHICH HAVE BEEN MATCHED TOGETHER FOR A GIVEN CHARACTERISTIC SUCH AS TRANSCONDUCTANCE. THE MATCHED VALUES MUST BE EQUAL OR WITHIN A SPECIFIED TOLERANCE. INCLUDES ONLY THOSE TUBES DESIGNED AND SPECIFICALLY TESTED TO PROVIDE A DESIRED FUNCTION. EXCLUDES TRANSISTORS, SEMICONDUCTOR DEVICES AND ELECTRON TUBES WHICH MAY BE OF AN IDENTICAL TYPE BUT DO NOT MEET THE ABOVE REQUIREMENTS.
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Manufacturer Information:
| 12BY7A | 28569 | HICKOK WAEKON LLC | | 20877-21 | 28569 | HICKOK WAEKON LLC |
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Techincal Specification:
| CONTROLLING AGENCY | HICKOK ELECTRICAL INSTRUMENT CO. | | ENVELOPE MATERIAL | GLASS | | IDENTIFYING NUMBER | 20877-21 DRAWING NO. | | INDIVIDUAL TUBE QUANTITY | 2 | | MANUFACTURER CLASSIFICATION | WIDE BAND PENTODE | | MATCHED CHARACTERISTIC | AMPLIFICATION | | TUBE SIZE DESIGNATION | 7733 |
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