HP 4155A Parameter Analyser

What is your question, exactly?

I recently acquired a nice 4145B. Apart from the weird and unique floppy drives, they're pretty nearly indestructible, and they do amazing things.

Cheers

Phil Hobbs

I found their menu system painful, not very intuitive, and the manual is a disaster. Also, I wasn't able to find much discussion on the web.

I've become a big fan of SMUs. Yes, those old HP instruments have multiple SMUs, but usually you only need two. A used Keithley 2602, 2612, etc., is a very versatile instrument. With its ethernet connection, you can run it from your computer, using a JAVA program they supply.

Well, I've been using them for 20 years or so, and you get good at it eventually. ;)

Cheers

Phil Hobbs

OK, when I get stuck, I'll call you! :>))

I was just trying to gauge whether the 4155A is considered to be as reliable as it's predecessor...

You probably already know - but the HxC Floppy Drive Emulator can replace the drive.

I did find it puzzling that HP don't list any docs for the 4155/4156. There are some decent docs available though - such as the Self-paced Training Manual.

Thanks, I didn't know that. Looks like a bit more of a science project than I had in mind though.

Cheers

Phil Hobbs

Are you interested in a replacement drive? I know SRS changed out their 3.5" floppy in the SRS770 to a usb drive, (The usb still only holds 720 kB or something like that... it gets formatted to look like a floppy) I've got one and could open it up and look for a part number/ manufacturer.

George H.

one, I could open it up and

Thanks. The 4145B uses a drive with a nonstandard interface, which is why r eplacing it is more of a science project than doing the same thing with a P C. I think it's a Sony model 300D.

Cheers

Phil Hobbs