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551: Difference between revisions
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A factory modification, MOD 108A, was available for increasing the CRT acceleration voltage. This improved trace visibility at high sweep rates. | A factory modification, MOD 108A, was available for increasing the CRT acceleration voltage. This improved trace visibility at high sweep rates. | ||
* [http://bama.edebris.com/download/tek/551/Tek%20551.pdf Tektronix 551 Manual (PDF)] | |||
<gallery> | <gallery> | ||
Image:551_front.jpg|Front view. | Image:551_front.jpg|Front view. | ||