LA501

Manuals – Specifications – Links – Pictures

The Tektronix LA501 is a logic analyzer plug-in for the TM500 system.

It has a cable-attached, passive 16-channel probe, the P6450, and outputs analog X/Y/Z signals for an external oscilloscope or X/Y monitor. Alternatively, channels 0-3 can be switched to four BNC connector inputs with 1 MΩ impedance intended for external ×10 probes.

The LA501W was a bundle of the LA501 with a WR501 connected internally to provide word recognition trigger as well as data acquisition. In this case, there is no P6450 probe; instead, one or two P6451 probes are attached to the WR501.

The LA501 provides only a timing diagram with clock tick marks on the traces, and analog zoom/pan controls for focusing on a particular trace or detail. Each channel can be positioned anywhere vertically to allow for timing comparisons.

Key Specifications

Memory	4096 bit (4ch/1024 bit, 8ch/512bit or 16ch/256bit)
Sampling rate	up to 50 MHz (100 MHz @ 4ch)

Links

• Tekscope Vol. 7 No. 4, 1975: Marshall Borchers, 16-channel logic analyzer
• Tekscope Vol. 8 No. 2, 1976: Pete Janowitz, A plug-in word recognizer with digital delay (WR501 + LA501)

Pictures

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  LA501

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  LA501

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  LA501

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  DL502, WR501, and LA501W

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  LA501W (including WR501) with SC502 scope in a TM515 mainframe

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  012-0725-01 Clock Access Conversion Kit for the LA501W