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The Tektronix 11301 is a programmable 400 MHz analog oscilloscope that takes up to three 11000-series plug-ins or (vertical) 7000-series plug-ins. Note, however, that the 7000 series plugins have mechanical interlock preventing them from being installed into an 11K mainframe.

The sister model 11302 is basically identical but has a micro-channel plate CRT and 500 MHz bandwidth.

The 11301 has an infrared beam touch screen. There are 10 columns and 14 rows of beams.

The 11301 contains a 77 nanosecond delay line.

The 11301 and 11302 make use of a patented system for automatically calibrating all the way to the graticule (i.e., including CRT deflection sensitivity) by optically sensing the position of the beam with respect to the graticule and applying any necessary correction factors. This is discussed in the patent and also on page 9 of the Handshake article linked below which states:

Optical sensors on the CRT bezel sense when the beam crosses the graticule lines to factor this information into the auto cal control signals. As a result, accuracy of the 11300-Series is controlled from the plug-in input connector to the CRT graticule without operator intervention.

Key Specifications

Bandwidth 400 MHz
Sweep 5 ns/Div to 500 ms/Div, 1−2−5, 10 magnifier
(same specs for delayed time base)
Triggering 0.35 Div (int) or 20 mV (ext) to 50 MHz, increasing to 1 Div/150 mV at max. bandwidth
Trigger modes DC, AC (>50 Hz), HF Reject (<30 kHz), LF reject (>80 kHz), TV (line or field)
X-Y operation X from center plugin, bandwidth 3 MHz
X-Y phase difference < 1° to 1 MHz, <3° to 2 MHz


Documents Referencing 11301

Document Class Title Authors Year Links
Handshake 1986-1987 Winter.pdf Article 11300-Series extends the usefulness of analog scopes Dale Aufrecht 1986



Some Parts Used in the 11301

Part Part Number(s) Class Description Used in
165-2053-00 165-2053-00 Hybrid integrated circuit vertical amplifier 11301 11302
M229 Monolithic integrated circuit input/output 11301 11302
M414 Monolithic integrated circuit counter 11301 11302

Some Parts Used in the 11301A

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