1L5: Difference between revisions

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manuals=
manuals=
* [http://bama.edebris.com/download/tek/1l5/Tek%201L5_v6.pdf Tektronix 1L5 Manual (PDF)]
* [http://bama.edebris.com/download/tek/1l5/Tek%201L5_v6.pdf Tektronix 1L5 Manual (PDF)]
* [[Media:Tek 1a5 fcp sep 1967.pdf]]
}}
}}
The '''Tektronix 1L5''' is a low-frequency spectrum analyzer for [[500-series scopes]].
The '''Tektronix 1L5''' is a low-frequency spectrum analyzer for [[500-series scopes]].

Revision as of 20:25, 6 June 2019

Template:Plugin Sidebar 2 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 50 Hz to 990 kHz. Minimum resolution bandwidth is 10 Hz. It has a 1 MΩ input resistance.

Type 1L5 was sold from 1967 until the end of the classic plug-in scope line. 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 500-series scope*, it is most useful by far in the Type 549 storage mainframe which allows slow sweeps needed to match the narrower resolution bandwidths.

In conjunction with the 015-0107-00 "Swept Frequency Generator" (tracking generator), the 1L5 can also measure frequency response.

* 531/535/541/545 need a wiring mod to alleviate vertical amp instability.

Pictures