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14 October 2024
- Signature analysis 04:39 +576 Peter talk contribs
- Signature analysis 04:21 +10 Peter talk contribs
- Signature analysis 04:20 +27 Peter talk contribs
- Signature analysis 04:18 +11 Peter talk contribs
- Signature analysis 04:15 +497 Peter talk contribs
- diffhistN Signature analyzer 04:10 +31 Peter talk contribs (Redirected page to Signature analysis) Tag: New redirect
- Main Page 03:57 +12 Peter talk contribs (→Technical Information)
- diffhistN Signature analysis 03:53 +2,875 Peter talk contribs (Created page with "'''Signature Analysis''' is a method to simplify (field) troubleshooting of complex digital systems, developed at Hewlett-Packard in the early 1970s. The idea is to describe "known good" states of signals in the system – typically when in some diagnostic / troubleshooting mode – as a CRC of that signal, when referenced to a known clock and defined start/stop conditions. The concept was introduced in [https://doc.xdevs.com/doc/HP_Agilent_Keysight/journals/1977-0...")
- Category:Signature analysis 03:35 +43 Peter talk contribs
- diffhistN Category:Signature analysis 03:33 +38 Peter talk contribs (Created page with " Category:Circuits and Concepts")
- diffhistN Patent US 3976864A 03:32 +533 Peter talk contribs (Created page with "{{Patent |Office=US |Number=3976864A |Title=Apparatus and method for testing digital circuits |Company=Hewlett-Packard |Inventors=Gary B. Gordon;George A. Haag;Jan R. Hofland;Daniel I. Kolody |Filing date=1974-09-03 |Grant date=1976-08-24 |Cites=Patent US 3582633A;Patent US 3651315A;Patent US 3739160A;Patent US 3777129A;Patent US 3780277A;Patent US 3812426A;Patent US 3813647A;Patent US 3821645A;Patent US 3826909A;Patent US 3832535A; }} This is the original HP patent for...")
- Patent US 4192451A 03:31 +117 Peter talk contribs
- Patent US 4527272A 03:31 0 Peter talk contribs
- Patent US 4527272A 03:23 +35 Peter talk contribs
- Patent US 4527272A 03:23 +142 Peter talk contribs
- Patent US 4752928A 03:20 +256 Peter talk contribs
13 October 2024
- 7A12 20:04 +9 Johnaddis talk contribs
- m Telequipment D61 13:44 −16 Julesomega talk contribs
- m Telequipment D61 13:41 +136 Julesomega talk contribs
- SA501 12:59 +8 Peter talk contribs
- Upload log 11:35 Julesomega talk contribs uploaded File:PC156 main PCB.png (Component side of PC156)
- m Telequipment D63 DM63 D75 D83 08:05 +1 Julesomega talk contribs (link amended)
- Telequipment D63 DM63 D75 D83 07:59 +39 Julesomega talk contribs (Added TQ S2A timebase)
- P6458 05:51 +122 Peter talk contribs
- SA501 05:46 +424 Peter talk contribs
- IM5610 05:45 +38 Peter talk contribs
- IM5610 05:29 +10 Peter talk contribs
- IM5610 04:35 −38 Peter talk contribs (parts have 40/50 ns access time)
- SA501 04:32 +431 Peter talk contribs
- IM5610 04:32 +54 Peter talk contribs
- SA501 03:48 +48 Peter talk contribs
- P6458 03:48 +24 Peter talk contribs
- SA501 03:43 +20 Peter talk contribs
- P6451 03:37 −35 Peter talk contribs
- File:Tekscope 1976 V8 N2.pdf 03:35 +7 Peter talk contribs
12 October 2024
- 155-0085-00 10:51 +34 Peter talk contribs
- 155-0068-00 10:50 +7 Peter talk contribs
11 October 2024
- 7A12 20:18 +13 Johnaddis talk contribs
- 7A12 20:15 +30 Johnaddis talk contribs
- 7A12 20:09 +159 Johnaddis talk contribs
- 7A12 20:03 +205 Johnaddis talk contribs
- 7A26 17:04 −2 Johnaddis talk contribs
- 7A26 17:02 −7 Johnaddis talk contribs
- 7A26 17:01 +76 Johnaddis talk contribs
- diffhistN Keithley 160/Repairs 09:03 +592 Gregor talk contribs (Created page with "==All ranges broken== If all ranges on your instrument are broken, but the power supply is fine, it check the analog output on the rear of the instrument. It is directly connected to the output of QA703 (an LM201 op-amp). Since the analog output connector is a open two-prong type it is very susceptible to accidental shorting. After replacing the op-amp, my instrument came back to life. I added a 1 kΩ resistor in series with the external output connector, to prevent acc...")
- Keithley 182 08:12 +158 Peter talk contribs
- Keithley 182 07:44 +215 Peter talk contribs
- Upload log 07:44 Peter talk contribs uploaded File:Keithley 182 901 01A.pdf
- Upload log 07:43 Peter talk contribs uploaded File:Keithley 182 901 02E.pdf
- Upload log 07:42 Peter talk contribs uploaded File:Keithley 182 903 01B.pdf