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{{Plugin Sidebar 2 | | |||
title=Tektronix 1L20 | | |||
summary=4.2 GHz Spectrum Analyzer plug-in | | |||
image=1L20 front.JPG | | |||
caption=1L20 front | | |||
series=[[500-series scopes]] | | |||
introduced=(?) | | |||
discontinued=(?) | | |||
manuals= | |||
* [http://w140.com/tek_1l20.pdf Tektronix 1L20 Manual (PDF)] | * [http://w140.com/tek_1l20.pdf Tektronix 1L20 Manual (PDF)] | ||
* [http://ki3u.byethost3.com/Radio-PhysicsDIR/Substitute_uhf_osc_tubes_for_Tek_1L20.html Berj / KI3U's Page on 1L20 Oscillator Repair] | * [http://ki3u.byethost3.com/Radio-PhysicsDIR/Substitute_uhf_osc_tubes_for_Tek_1L20.html Berj / KI3U's Page on 1L20 Oscillator Repair] | ||
}} | |||
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 L20|Pentrix L-20]]. The model number | |||
was changed some time after Tektronix took over [[Pentrix]] in 1964. | |||
==Pictures== | |||
<gallery> | <gallery> | ||
File:1L20 front.JPG|Front | File:1L20 front.JPG|Front | ||
| Line 12: | Line 25: | ||
File:1L20 bottom.JPG|Bottom | File:1L20 bottom.JPG|Bottom | ||
File:Tek 1l20 pb.jpg | File:Tek 1l20 pb.jpg | ||
File:1L20_1.jpg | |||
File:1L20 block.png|Block Diagram | File:1L20 block.png|Block Diagram | ||
File:1L20 rf and phase lock block.png|RF and Phase Lock Block Diagram | File:1L20 rf and phase lock block.png|RF and Phase Lock Block Diagram | ||
| Line 21: | Line 34: | ||
File:1L20 schem sweeper.png|Sweeper | File:1L20 schem sweeper.png|Sweeper | ||
File:1L20 schem if attenuator.png|IF Attenuator | File:1L20 schem if attenuator.png|IF Attenuator | ||
File:1L20 schem if amp 70mhz osc mixer.png|IF Amp, | File:1L20 schem if amp 70mhz osc mixer.png | IF Amp, 70 MHz Oscillator and Mixer | ||
File:1L20 schem variable resolution.png|Variable Resolution Circuit | File:1L20 schem variable resolution.png | Variable Resolution Circuit | ||
File:1L20 schem output amp.png|Output Amplifier | File:1L20 schem output amp.png | Output Amplifier | ||
</gallery> | </gallery> | ||
Revision as of 11:32, 20 July 2014
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.
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
