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The trigger is a 6DJ8 differential trigger amplifier followed by a 6DJ8 Schmitt trigger. | The trigger is a 6DJ8 differential trigger amplifier followed by a 6DJ8 Schmitt trigger. | ||
The 515A has a Z-axis input and slightly higher vertical sensitivity than the 515. | |||
The maximum vertical sensitivity is 100mV/div for the 515 and 50mV for the 515A. | |||
* [http://w140.com/mmm/tek-515.pdf Tektronix 515 Manual (PDF)] | * [http://w140.com/mmm/tek-515.pdf Tektronix 515 Manual (PDF)] |