PS-251 (25MHz With Component Test)

25MHz, ALT Trigger.
1mV sensitivity.
10ns Resolution.
Component test, Beam-finder
Illuminate, Hold-off, X-Y

SPECIFICATIONS
CRT:
Type: Rectangular with integral grateful.
Display Area: 8 x 10 divisions (1 division = 1 cm)
Accelerating Voltage: 2.1 kV.
Phosphor: P31
Vertical amplifiers (CH 1 and CH 2)
Sensitivity: 5 mV/div to 5 V/div (X1 mode)
1 mV/div to 1 V/div (X5 mode)
Sequence: 1-2-5, 10-step attenuator
Vernier control for full adjustable attenuation between steps
Accuracy: ±3% (X1 mode), ±5% (X5 mode)
Input Resistance: 1 MΩ ±2%
Input Capacitance: 25 pF / 10 pF
Frequency Response: 5 mV to 5 V/div (CAL): DC to 25 MHz (-3 dB)
1 mV/div (CAL): DC to 10 MHz (-3 dB)
Rise Time: Approximately 14.0 ns
Operating Modes: CH1: CH 1, single trace; CH2: CH 2, single trace; ALT: dual trace, alternating; CHOP: dual trace, chopped; ADD: algebraic sum of CH 1 + CH 2
Polarity Reversal (Invert): CH 2 only
Maximum Input Voltage: 400 V dv + ac peak
Maximum Undistorted Amplitude: DC-to-25 MHz: 4 divisions; DC-to-15 MHz: 8 divisions
HORIZONTAL AMPLIFIER (Input through channel 1 input)
X-Y mode: switch selectable using X-Y switch
CH1: X axis, CH2: Y axis
Sensitivity: 1 mV/div to 5 V/div
Accuracy: Y-Axis: ±3%, X-Axis: ±6%
Input Impedance: 1 MΩ // 25 pF
Frequency Response: DC to 1 MHz typical (-3 dB)
X-Y Phase Difference: Approximately 30° at 50 kHz
Maximum input Voltage: 400 V DC + ac peak
SWEEP SYSTEM
Sweep Speed: 0.1 μs/div to 2 s/div in 1-2-5 sequence, 23 steps
Vernier control for fully adjustable sweep time between steps
Accuracy: ±3%
Sweep Magnification: 10X, ±6% (0.1 μs)