500-series plug-ins (Letter-series and 1-series)
These plug-ins fit in 500-series scopes and in external power supply units such as the 127, 132, and 133. They use the 500-series plug-in interface.
Tektronix made plug-ins
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A - 20 MHz, single channel, 1959 (53A: 1954)
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B - Same as A, with an extra 10× of gain, 1954
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C - 24 MHz, (53C: 8.5 MHz) dual channel
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CA - 24 MHz, dual channel
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D - 2 MHz, differential, 1954
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E - 60 kHz, high gain differential, 1955
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G - 20 MHz, differential, 1955
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H - 15 MHz, single channel, 1958
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J - Aborted, similar to 1A1, 1963
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K - 30 MHz, single channel, 1955
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L - Same as K, with an extra 10× of gain, 1957
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M - 20 MHz, four channel, 1962
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N - 600 MHz, sampling, 1960
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O - 25 MHz, op-amp, 1962
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P - Calibration aid, pulser, 1959
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Q - Transducer driver, 1960
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R - Transistor rise-time tester, 1958
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S - Diode recovery tester, 1960
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T - Single time base, 1957
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V - Aborted, video
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W - 23 MHz, differential comparator, 1965
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Z - 13 MHz, differential comparator, 1960
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1A1 - 50 MHz, dual channel, 1964
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1A2 - 50 Mhz, dual channel, 1964
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1A4 - 50 MHz, four channel, 1967
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1A5 - 50 MHz, differential, 1967
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1A6 - 2 MHz, differential, 1967
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1A7 - 1 MHz, high gain differential, 1966
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1S1 - 1 GHz, sampling, 1965
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1S2 - 3.9 GHz, sampling and TDR, 1967
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1L5 - 50 Hz to 1 MHz Spectrum Analyzer, 1967
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1L10 - 1 MHz to 36 MHz Spectrum Analyzer, 1965
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1L20 - 10 MHz to 4.2 GHz, Spectrum Analyzer, 1964
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1L30 - 925 MHz to 10.5 GHz Spectrum Analyzer
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1L40 - 1.5 GHz to 40 GHz Spectrum Analyzer
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1M1 - Calibration aid, 1964
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TU-2 - Calibration aid
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TU-7 - Same as 1M1
Non-Tektronix plug-ins
... that also work in 500-series scopes include, but are probably not limited to:
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EIP 101B - Microwave Spectrum Analyzer
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Electro/Data PN1011 - Microwave Panoramic Spectrum Analyzer
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Hickok 1822 - Tektronix Type B clone
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Hickok 1823 - Tektronix Type 53C clone
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Hickok 1823A - Tektronix Type CA clone
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Hickok 1824 - Tektronix Type D clone
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Hickok 1831 - Tektronix Type K clone
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Hickok 1832 - Tektronix Type L clone
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Hickok 1836 - Calibration fixture
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Lavoie LA-265-B - Tektronix Type B clone
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Lavoie LA-265-CA - Tektronix Type CA clone
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Lavoie LA-265-D - Tektronix Type D clone
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Lavoie LA-265-L - Tektronix Type L clone
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Nelson-Ross 002 - 35 Hz to 150 kHz, Spectrum Analyzer
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Nelson-Ross PSA-011 - 10 Hz to 20 kHz Spectrum Analyzer
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Nelson-Ross 201 - 600 kHz to 35 MHz Spectrum Analyzer
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Nelson-Ross 511 - 10 MHz to 4.5 GHz Spectrum Analyzer
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Pentrix L20 - Spectrum Analyzer, forerunner to Tek 1L20
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Pentrix L21 - Low frequency Spectrum Analyzer
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Pentrix L30 - Spectrum Analyzer, forerunner to Tek 1L30
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Pentrix L3742/2 - Spectrum Analyzer
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Systron Donner 9550 - Curve tracer