1L5: Difference between revisions
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File:Tek 1l5 front.JPG|front | File:Tek 1l5 front.JPG|front | ||
File:Tek 1l5 bottom.JPG|bottom | File:Tek 1l5 bottom.JPG|bottom | ||
File:Tek 1l5 center freq switching.png | |||
File:Tek 1l5 swept freq gen.png | |||
File:Tek 1l5 attenuators and input.png | |||
File:Tek 1l5 var res amp.png | |||
File:Tek 1l5 block diagram.png | |||
File:Tek 1l5 dispersion warning.png | |||
File:Tek 1l5 calibrator.png | |||
File:Tek 1l5 plug and power.png | |||
File:Tek 1l5 output amp.png | |||
</gallery> | </gallery> | ||
[[Category:Spectrum Analyzers]] | [[Category:Spectrum Analyzers]] | ||
[[Category:500 series plugins]] | [[Category:500 series plugins]] | ||
Revision as of 20:10, 28 May 2014
The Tektronix 1L5 is a low-frequency spectrum analyzer for 500-series scopes. It is very similar to the 3L5.
Its center frequency is set on a trio of rotary switches and can range from 50Hz to 990kHz. Minimum resolution bandwidth is 10Hz. It has a 1 meg input resistance.
Type 1L5 was sold from 1967 or 1968 until the end of the classic plug-in scope line after 1974. Not particularly accurate in either frequency, bandwidth, or amplitude, it was no match for HP's 141T/8556A/8552B combination in performance, but it was a small fraction of the price.
Although Type 1L5 can operate in any classic plug-in scope*, it is most useful by far in the Type 549 storage mainframe, where it's possible to sweep slowly with the narrower resolution bandwidths.
* 531/535/541/545 need a wiring mod to alleviate vertical amp instability.
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