7704: Difference between revisions

7704 (view source)

Revision as of 23:32, 17 April 2023

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 {{Spec | Fastest cal. sweep | 2 ns/Div  }}
 {{Spec | Bandwidth | 150 MHz (with [[7A11]] or [[7A16]]) }}
-{{Spec | Calibrator | 4 mV to 40 V in decade steps, 2/20/200/400 mV into 50 Ω, 40 mA; 1 kHz }}
+{{Spec | Calibrator | 4 mV to 40 V in decade steps (2/20/200/400 mV into 50 Ω); 40 mA; 1 kHz }}
 {{Spec | Outputs | Vertical Signal Out (25 mV/Div, 60 MHz), +Sawtooth, +Gate, Cal, camera power, probe power }}
-{{Spec | Z Axis input | two: High Speed (60 V<sub>p-p</sub>, DC-100 MHz), High Sensitivity (2 V<sub>p-p</sub>, DC-2 MHz; 0.4 V<sub>p-p</sub> @ 20 MHz) }}
+{{Spec | Z Axis input | two: High Speed (60 V<sub>p-p</sub>, DC−100 MHz), High Sensitivity (2 V<sub>p-p</sub>, DC−2 MHz; 0.4 V<sub>p-p</sub> @ 20 MHz) }}
 {{Spec | CRT | [[154-0609-00]], 8 cm × 10 cm graticule, [[distributed vertical deflection plates]], P31 [[phosphor]] standard }}
-{{Spec | Acceleration voltage | 24 kV (+21/-2.96) }}
+{{Spec | Acceleration voltage | 24 kV (+21/−2.96) }}
-{{Spec | Power | 90-136 V or 180-272 V, 48-440 Hz, 210 W max. }}
+{{Spec | Power | 90−136 V or 180−272 V, 48−440 Hz, 210 W max. }}
 {{Spec | Weight | 19.1 kg (42 lbs) }}
 {{Spec | Size | 34.2 cm × 30.5 cm × 55.1 cm (H×W×L) }}
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 ==Internals==
-The 7704 uses an all-discrete switch-mode power supply (SMPS) in resonant half-bridge topology.
+The 7704 was the first Tek lab scope to employ a switch-mode power supply (SMPS)<ref>See [[Media:Tekscope_1972_V4_N2_Mar_1972.pdf|Tekscope Vol.4 No.2, March 1972]], p.5</ref>.
+The SMPS, designed by [[Gene Andrews]], uses an all-discrete resonant half-bridge topology.
 The CRT voltages and heating are produced in a separate switching stage running off the main SMPS DC output.
-Logic, channel switching, and [[7000_series_readout_system|readout]] use the classic TEK 7000 series custom ICs ([[155-0009-00]] to [[155-0022-00]]), the horizontal and vertical amplifiers are completely discrete.
+Logic, channel switching, and [[7000_series_readout_system|readout]] use the classic TEK 7000 series custom ICs ([[155-0009-00]] to [[155-0022-00]]), the horizontal amplifier and the vertical amplifier (also designed by Andrews) are completely discrete.
 ==Links==
 * [http://www.barrytech.com/tektronix/tek7000/tek7704.html Tek 7704 @ barrytech.com]
+<references />
 ==Pictures==