A page in your DokuWiki was added or changed. Here are the details:

Browser : Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36 IP Address : 73.74.143.186 Hostname : c-73-74-143-186.hsd1.il.comcast.net Old Revision : https://hpwiki.mcguirescientificservices.com/4145a_semiconductor_parameter_a... New Revision : https://hpwiki.mcguirescientificservices.com/4145a_semiconductor_parameter_a... Date of New Revision: 2023/12/10 20:52 Edit Summary : User : wschraml

There may be newer changes after this revision. If this happens, a message will be shown on the top of the rev page.

@@ -2,18 +2,16 @@

<WRAP info round right 33> ^First Catalog | 1983 | ^Last Catalog | <year> | - ^<attribute1> | <value1> | - ^<attribute2> | <value2> | - ^<attribute3> | <value3> | </WRAP>

- <!-- - <WRAP download right 20> + + <WRAP download right 33> {{:component_measurement:4145a:hp4145a_semiconductor_parameter_analyzer_operation_and_service_manual.pdf|Service Manual}} + + {{:component_measurement:4145a:comparison_to_tektronix_curve_tracer.pdf|Comparison to Tektronix Curve Tracer}} </WRAP> - -->

Designed for production line and laboratory use, the HP 4145A was the electronics industry's first stand-alone instrument capable of complete DC characterization of semiconductor devices and materials. It stimulates voltage and current-sensitive devices, measures the resulting current and voltage responses, and displays the results in a user-selectable format (graph, list, matrix, or schmoo) on a built-in CRT display.

The photos show an analyzer that has been upgraded with a modern LCD display and a "Gotek" floppy emulator to replace its original, proprietary 5.25" Floppy Drive.

A page in your DokuWiki was added or changed. Here are the details:

Browser : Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36 IP Address : 73.74.143.186 Hostname : c-73-74-143-186.hsd1.il.comcast.net Old Revision : https://hpwiki.mcguirescientificservices.com/4145a_semiconductor_parameter_a... New Revision : https://hpwiki.mcguirescientificservices.com/4145a_semiconductor_parameter_a... Date of New Revision: 2023/12/10 22:05 Edit Summary : User : wschraml

There may be newer changes after this revision. If this happens, a message will be shown on the top of the rev page.

@@ -5,22 +5,23 @@ ^Last Catalog | <year> | </WRAP>

+ Designed for production line and laboratory use, the HP 4145A was the electronics industry's first stand-alone instrument capable of complete DC characterization of semiconductor devices and materials. It stimulates voltage and current-sensitive devices, measures the resulting current and voltage responses, and displays the results in a user-selectable format (graph, list, matrix, or schmoo) on a built-in CRT display. + + The photos show an analyzer that has been upgraded with a modern LCD display and a "Gotek" floppy emulator to replace its original, proprietary 5.25" Floppy Drive. + + <WRAP clear></WRAP> <WRAP download right 33> {{:component_measurement:4145a:hp4145a_semiconductor_parameter_analyzer_operation_and_service_manual.pdf|Service Manual}}

{{:component_measurement:4145a:an_315_-_dc_parametric_analysis_of_semiconductor_devices_hp_4145b_.pdf|Application Note AN-315}}

- {{:component_measurement:4145a:comparison_to_tektronix_curve_tracer.pdf|Comparison to Tektronix Curve Tracer}} + {{:component_measurement:4145a:comparison_to_tektronix_curve_tracer.pdf|Comparison to Tektronix Curve Tracer (576, 577)}} </WRAP> - - Designed for production line and laboratory use, the HP 4145A was the electronics industry's first stand-alone instrument capable of complete DC characterization of semiconductor devices and materials. It stimulates voltage and current-sensitive devices, measures the resulting current and voltage responses, and displays the results in a user-selectable format (graph, list, matrix, or schmoo) on a built-in CRT display. - - The photos show an analyzer that has been upgraded with a modern LCD display and a "Gotek" floppy emulator to replace its original, proprietary 5.25" Floppy Drive.

{{popup>:component_measurement:4145a:4145A_1.jpg?400x200}} {{popup>:component_measurement:4145a:4145A_2.jpg?400x200}}

<WRAP clear></WRAP>

A page in your DokuWiki was added or changed. Here are the details:

Browser : Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36 IP Address : 73.74.143.186 Hostname : c-73-74-143-186.hsd1.il.comcast.net Old Revision : https://hpwiki.mcguirescientificservices.com/4145a_semiconductor_parameter_a... New Revision : https://hpwiki.mcguirescientificservices.com/4145a_semiconductor_parameter_a... Date of New Revision: 2023/12/10 22:44 Edit Summary : User : wschraml

There may be newer changes after this revision. If this happens, a message will be shown on the top of the rev page.

@@ -23,8 +23,35 @@ </WRAP>

{{popup>:component_measurement:4145a:4145A_1.jpg?400x200}} {{popup>:component_measurement:4145a:4145A_2.jpg?400x200}} -

<WRAP clear></WRAP> + + + ===== Installation of "Gotek" Floppy Drive Emulator (running "FlashFloppy") ===== + + There are several articles/videos on the Internet on retrofitting a "Lotharek" HxC floppy emulator to the analyzer. + + Below, the steps to use one of the newer "Goteks" (with the latest 435-based MCU and an OLED display) are outlined. They usually come with "FlashFloppy" already installed. + + * Remove the existing 5.25 drive. + * Retrofit a 34-pin IDC connector to the 4145A Floppy cable (covered in the YouTube video below). + * Use a power adapter to connect the Gotek to the 4-pin Molex of the 4145A. + * Connect Pin 6 and Pin 34 on the floppy drive with a jumper wire. + * Format a USB stick for the FAT32 filesystem. + * Load the configuration and binary files for the boot disk onto the USB stick. + * To install the Gotek into the 5.25 bay of the 4145A, either use parts from one of the universal floppy drive adapter kits that can be found on eBay. Or create a custom adapter if you are mechanically skilled. + * Put everything together, turn the instrument on, and it should boot from the Gotek. + + Zip-file with the two configuration files and the binary file for the boot disk: {{:component_measurement:4145a:gotek_4145a.zip|Gotek FlashFloppy Files}} + + + Credits: + * The boot disk binary file ("DSKA0000.HFE") can also be obtained from here: https://github.com/exclusivelyhp/4145A. + * Article on putting together the "IMG.CFG" file: http://w6akp.com/projects:hp_4145a_virtual_floppy + * FlashFloppy site: https://github.com/keirf/flashfloppy + * Jared Cabot's video and helpful information with regards to the 1345A display: https://youtu.be/53asomSXkXQ?si=rld6QaL18WURdmna + + +

A page in your DokuWiki was added or changed. Here are the details:

Browser : Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36 IP Address : 73.74.143.186 Hostname : c-73-74-143-186.hsd1.il.comcast.net Old Revision : https://hpwiki.mcguirescientificservices.com/4145a_semiconductor_parameter_a... New Revision : https://hpwiki.mcguirescientificservices.com/4145a_semiconductor_parameter_a... Date of New Revision: 2023/12/10 23:41 Edit Summary : User : wschraml

There may be newer changes after this revision. If this happens, a message will be shown on the top of the rev page.

@@ -11,8 +11,10 @@ The photos show an analyzer that has been upgraded with a modern LCD display ({{:component_measurement:4145a:newscope-5_install_op.pdf|NewScope-5 from SIMMCONN Labs}}) and a "Gotek" floppy emulator to replace its original, proprietary 5.25" Floppy Drive.

<WRAP clear></WRAP> <WRAP download right 33> + {{:component_measurement:4145a:hpj-1982-10.pdf|HP Journal 1982-10}} + {{:component_measurement:4145a:hp4145a_semiconductor_parameter_analyzer_operation_and_service_manual.pdf|Service Manual}}

{{:component_measurement:4145a:an_315_-_dc_parametric_analysis_of_semiconductor_devices_hp_4145b_.pdf|Application Note AN-315}}

@@ -59,6 +61,11 @@

Also published on groups.io: https://groups.io/g/HP-Agilent-Keysight-equipment/message/140475

+ ===== HP 4145A - Miscellaneous Repair Notes ===== + + * Front panel push-buttons - if they are "clicky" (which is a well-known problem) - Take the front panel off, remove the PCB with all the switches, and use the Isopropyl alcohol method for cleaning. One sample thread is here: https://groups.io/g/HP-Agilent-Keysight-equipment/message/138483 + * Rotary Pulse generator - if not working, try the information from this groups.io topic "https://groups.io/g/HP-Agilent-Keysight-equipment/message/6724" to fix it. + * Instrument fan: The HP part number is 3160-0391. A suitable replacement is this: https://a.co/d/7s5Tr1T. More info on the topic: https://groups.io/g/HP-Agilent-Keysight-equipment/message/139316