The TEKTRONIX 2465 Oscilloscope is a portable
300-MHz instrument having a four-channel vertical deflec-
tion system. Channel 1 and Channel 2 provide calibrated
deflection factors from 2mV per division to 5V per
division. For each of these channels, input impedance is
selectable between two values: either 1 M ohm in parallel
with 15pF, or 5O ohm internal termination. Input-signal
coupling with 1-M ohm impedance can be selected as either
AC or DC. Channel 3 and Channel 4 have deflection factors
of either 0.1 V or 0.5 V per division. Each of these channels
has an input impedance of 1 M ohm in parallel with 15 pF,
with DC input-signal coupling. Trigger circuits enable stable
triggering over the full bandwidth of the vertical system.
The horizontal deflection system provides calibrated
sweep speeds from 1.5 s per division to 500 ps per division.
Drive for the horizontal deflection system is obtained from
a choice of A, B delayed, A alternated with B delayed
sweeps, or CH 1 (for the X-Y display mode).
The 2465 incorporates alphanumeric crt readouts of the
vertical and horizontal scale factors, the trigger levels,
time-difference measurement values, voltage-difference
measurement values, and certain auxiliary information.
