1L20: Difference between revisions
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Revision as of 09:32, 2 November 2019
Template:Plugin Sidebar 2 The Tektronix 1L20 is a spectrum analyzer plug-in for 500-series scopes. It covers the frequency range from 10 MHz to 4.2 GHz.
The 1L20 was originally the third-party Pentrix L-20. The model number was changed some time after Tektronix took over Pentrix in 1964.
Key Specifications
| Frequency range | 10 MHz to 4 GHz |
|---|---|
| Sensitivity | -110 to -90 dBm |
| Dispersion | 15 kHz to 60 MHz, magnifier usable to 2.5 kHz |
| Resolution bandwidth | 1 kHz to 100 kHz, variable |
| Display | log, lin, square, video |
Prices
$1,995 (1965) equiv. to $15,200 in 2016
Pictures
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Front
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Left
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Right
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Top
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Bottom
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Block Diagram
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RF and Phase Lock Block Diagram
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IF Block Diagram
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RF Section
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Phase Lock Circuit
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Wideband Amp and Mixer
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Sweeper
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IF Attenuator
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IF Amp, 70 MHz Oscillator and Mixer
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Variable Resolution Circuit
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Output Amplifier
