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581: Difference between revisions
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The vertical signal path of the 581 is the same as that of the 585. It uses the [[T581]] CRT. | The vertical signal path of the 581 is the same as that of the 585. It uses the [[T581]] CRT. | ||
Type 581 scopes with serial numbers up to 510 use an all-tube trigger circuit. | Type 581 scopes with serial numbers up to 510 use an all-tube trigger circuit. | ||
Starting at serial number 511, the 581 uses [[tunnel diodes|tunnel diode]] triggering. | Starting at serial number 511, the 581 uses [[tunnel diodes|tunnel diode]] triggering. | ||