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Date
Re: HP 16500C Display Question
I thought I'd seen something on eevblog but didn't find that. I think that card is another of these programmable devices but for ?20 shipped I'll give it a try. I want to do something like this for a
By Adrian Godwin · #148384 ·
Re: Troubleshooting a 8591e with opt 130
That image was very helpful! I ordered replacement components according to your values. Both for the through hole and the smd resistors. I went with thin film ones because couldn't get any specific RF
By Marco · #148383 ·
Re: HP 16500C Display Question
I had another look for the 16500B and found this fellow ... https://www.artisantg.com/TestMeasurement/54037-93/Keysight-Agilent-16500L-Interface-Module-for-the-16500B-Logic-Analyzer-Mainframe I see a
By Damien Towning · #148382 ·
Re: HP 16500C Display Question
I have an RGB2HDMI for another old bit of hardware. But this is not EGA. Found a good thread over at EEVOLG : https://www.eevblog.com/forum/testgear/hp16500/ The mention of a board for the 16500B to
By Damien Towning · #148381 ·
1991 HP 54600A missing text and display elements
I am attempting to repair a broken HP 54600A. When I first powered it on the display was all solid green and squashed vertically, 3 of the tantalum caps on the motherboard also let out their magic
By fish.cm1@... · #148380 ·
Re: HP 16500C Display Question
From looking at a schematic of the CRT it looks like they have capacitors in series to cut the dc. Going to try today some caps in series to see what happens on the R/G/B channels. It may be that
By Damien Towning · #148379 ·
Re: Repair of HP Logic Clips
Here, here! Everyones time and effort should be rewarded in some fashion. Often, appreciation is enough, other times, not. Some people do not have deep pockets, so trivial costs to some may be greater
By Jeff Kruth · #148378 ·
Re: Repair of HP Logic Clips
I have to push back on this one: it doesn't but there is nothing wrong with making profit either. Every project no matter how small costs time and money, and honest work deserves to be compensated. To
By Nick · #148377 ·
Re: Troubleshooting a 8591e with opt 130
Hi, If you have lost your calibration constants, it will be possible to rebuild them. For the moment there is the attenuator to repair... it is easily achievable according to the image. But I fear for
By Yves Tardif · #148376 ·
Wanted: Hp 2225 parts mule Thinkjet
Looking for an Hp 2225 ThinkJet printer ... parts mule: ( any of the 2225a, b, c, d units ) I need the switch assembly ( Pwr / LF / FF? with LED's ) in the top upper Left hand corner. Contact me
By gren · #148375 ·
Re: Troubleshooting a 8591e with opt 130
I went ahead and took the attenuator out. It's a JFW 50p-1120 and it was definitely abused by a previous owner. Googled the part number hoping to find other teardown pictures to find out replacement
By Marco · #148374 ·
Re: Repair of HP Logic Clips
It has never been my intention to make these boards for profit, and I'll be happy to up-load all files I just made it for my self, because I thought it was a funny project
By Hans Eriksen · #148373 ·
Re: Troubleshooting a 8591e with opt 130
Hey Yves, Thanks for your reply! Those measurements look a lot more like what I expected. Took me a few days but got my hands on a nanoVNA and hooked it up to only the attenuator today. The noisefloor
By Marco · #148372 ·
Re: Repair of HP Logic Clips
Neat project!? Well done. If it were me, I'd release the board design and BoM* under a creative commons license and let others in on the act for personal use.? Profit doesn't have to enter into
By Dave_G0WBX · #148371 ·
Re: Repair of HP Logic Clips
If he were instead to sell it, He may find the market really too small to be worthwhile. Probably no profit motive here otherwise.
By VE6WMR · #148370 ·
Re: Repair of HP Logic Clips
If you are so inclined, I think it would be great for you to release the design, perhaps in the files section here. I have an original HP Logic Clip, but I would like to construct a few of your
By Dave McGuire · #148369 ·
Re: Repair of HP Logic Clips
Well - as I wrote I didn't put pads on my layout for the 2 interconnections, but I did mount 2 wire between the boards Any of the 16 pins can provide power and ground The reason for not putting on
By Hans Eriksen · #148368 ·
Re: Repair of HP Logic Clips
As one who repaired a few logic clips back in the day it looks like the DIY approach above missed something HP did, which was to interconnect the Vcc and local ground busses across both sides of the
By Robert LaJeunesse · #148367 ·
Re: Repair of HP Logic Clips
I made me own Logic Clip (I really wanted a HP one, but they are very expensive now) Just made 2 (equal) boards with 8 x dual diodes, for tapping off power and ground 8 x LED and a resistor (rect. 3 x
By Hans Eriksen · #148366 ·
Re: Added Folder /A temporary directory for photographs and help relating to emails and posting/Fiche Library index #file-notice
Some groups features are a bit baffling Hopefully the scanned content is of use to people Peter
By Peter Brown · #148365 ·