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Tektronix 5B12N Dual Sweep Time Base plug-in amplifier for use in any 5000 Series mainframe. Sweep Rates - Calibrated: 1 us/div to 5 s/div in 21 steps (1-2-5 sequence). X10 Magnifier extends displayed sweep time/div to 100 ns. Uncalibrated: Continuously variable between steps and to 12.5 s/div. B Sweep: 0.2 us/div to 0.5 s/div in 20 calibrated steps. Sweep Accuracy - Unmagnified: Within 3% from 1 us/div to 1 s/div and within 4% at 2 s/div and 5 s/div. Add 1% for magnified sweep operation. B Sweep: Within 3% from 1 us/div to 0.1 s/div. Within 4% at 0.2 us/div, 0.5 us/div, 0.2 s/div, and 0.5 s/div. External Trigger Input - Maximum Input: 350 V (dc + peak ac). Input R and C: 1 M-ohm within 2% paralleled by ~70 pF. Trigger Level Voltage Range: +5 V to -5 V. Deflection Factor - Calibrated: 50 mV/div and 500 mV/div. Accuracy is within 3%. X10 variable extends range to at least 5 V/div. Bandwidth - Dc Coupled: Dc to at least 1 MHz. Ac Coupled: 50 Hz or less to at least 1 MHz. Input R and C - 1 M-ohm within 2% paralleled by ~70pF. Maximum Input Voltage - 350 V (dc + peak ac). Delay Time - Accuracy: 1 us/div to 0.5 s/div, within 1%. 1 s/div to 5 s/div, within 2%. Multiplier Range: 0.2 to 10.2 times the time/division setting. Multiplier Incremental Linearity: Within 0.2%. Differential Time Measurement Accuracy - Within 1% plus 2 minor dial div for 1 uS to 0.5 s delay times. Within 2% plus 2 minor dial div for 1 s to 5 s delay times. Jitter - < 0.05% of the time represented by one division of the delaying sweep selected.
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