Tektronix ADA400A Instruction Manual page 63

Maintenance
signals to ground and blows the protective fuse if the current exceeds 1/16 am-
pere for any length of time.
With the jumpers disconnected the input impedance is virtually infinite (1012Q).
For more information about these jumpers, see page 10.
signal from distorting, the signal must be within the dynamic range of the
amplifier. For more information on the dynamic range characteristic, refer to the
notes on page 14.
Low-Pass Filter © The Upper Bandwidth Control selects different RC networks in the low-pass
Overrange Detect Should the input signal exceed the dynamic range of the output amplifier, the
TEKPROBETM Interface = The TEKPROBE interface provides power, signal, and data connections between
the ADA4O0A Differential Preamplifier and the oscilloscope.
ADA4OOA Instruction Manual 51