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Re: E4406 Synthetizer trouble
Best R Yiannis SV1MNE
By sv1mne · #118561 ·
Re: I found a source of good used Zebra Strips.
Instead of soldering. As LCD's take next to no "power" to operate, how about using small amounts of conductive epoxy to glue a suitable ribbon cable of the right pitch, to the LCD?? In cases where
By Dave_G0WBX · #118560 ·
Re: I found a source of good used Zebra Strips.
Is conductive epoxy a possibility ? Cheers! Quoting Dave Casey <polara413@...>:
By Bruce · #118559 ·
Re: E4406 Synthetizer trouble
Thank you all that helped. I have one idea to put one? 1N4148, only for curiosity and test, because I haven't this part and look what happened in attached... I generate one signal of 1GHz at
By Marcelo · #118558 ·
Re: HP App Note #315 Practical Applications of the HP 4145B Semiconductor Parameter Analyzer
AWESOME!!! Thank you! Sean
By Sean Turner · #118557 ·
Re: HPAK 54624A Oscilloscope not starting
Hi, Keysight.com has all the manuals for it: https://www.keysight.com/at/de/product/54624A/portable-dso.html#resources Cheers, Wolferl
By Wolfgang Mahringer · #118556 ·
Re: E4406 Synthetizer trouble
According to the parts list just posted, my hunch was correct: HSMP-389x/489x series pin switching diodes. The datasheet lists the various G# codes and associated configurations, and their RF circuit
By Kuba Ober · #118555 ·
Re: E4406 Synthetizer trouble
Thank you all. I compaired with other boards I have here and it is damaged, I am sure. I will look for it to replace. Thank you all. And the step of frequencies show this diode too. Regads, Marcelo
By Marcelo · #118554 ·
Re: E4406 Synthetizer trouble
Here comes the a19 synth for esg-and e4406A vsa Hardy -----Oprindelig meddelelse----- Fra: [email protected] [mailto:[email protected]] P? vegne af
By hardyhansendk · #118553 ·
Re: E4406 Synthetizer trouble
Better datasheet link: https://media.digikey.com/pdf/Data%20Sheets/Avago%20PDFs/HSMP-389x-489x.pdf It’s an Avago part, they spun off from HP (if I recall correctly, don’t quote me on it).
By Kuba Ober · #118552 ·
Re: E4406 Synthetizer trouble
Hi I think the third component also ia a schotty diode--have the schematic for this--wil look for it Hardy -----Oprindelig meddelelse----- Fra:
By hardyhansendk · #118551 ·
Re: E4406 Synthetizer trouble
Delta usually means "ESD sensitive", but I've only seen that on larger packages. -Dave
By Dave McGuire · #118550 ·
Re: E4406 Synthetizer trouble
Looked further into it; the delta seems to be a manufacturer marking. The device marking is G2. In that case, a good bet would be a double pin switching diode of the made by HP, type HSMP-3892, in
By Kuba Ober · #118549 ·
Re: E4406 Synthetizer trouble
I think he meant the component to the left of those two diodes. -Dave
By Dave McGuire · #118548 ·
Re: E4406 Synthetizer trouble
This is a diode(or perhaps two diodes), not a transistor. Probably a basic silicon switching or Schottky diode. If you think it’s bad, look at other ones and probe out the pin out with a multimeter
By Kuba Ober · #118547 ·
E4406 Synthetizer trouble
Dear frienda, I am Marcelo from Brazil? and I have one trouble with my E4406. When I put 940MHz the spectrum don't show more, it lost the signal, and in other higher frequencies too. I already found
By Marcelo · #118546 ·
Re: HP App Note #315 Practical Applications of the HP 4145B Semiconductor Parameter Analyzer
I took a look at the attached document. To my surprise I have actually scene the test fixture for sale at the old MIT flea. Wasn't sure what the test fixture went to but thought it might be useful.
By paulswed · #118545 ·
File /3000 to 3999/3852A/3852A-4.22-ROM-upgrade.pdf uploaded #file-notice
The following files have been uploaded to the Files area of the [email protected] group. * /3000 to 3999/3852A/3852A-4.22-ROM-upgrade.pdf (
By [email protected] Notification <noreply@...> · #118544 ·
Re: I found a source of good used Zebra Strips.
Sounds like my Micronta 22-191 DMM uses the same tape technology to connect its display. I think the traces are vapor-deposited low-temp solder, and the tape was fused to the pads with BRIEF
By Dave Wise · #118543 ·
Re: HP 54512B
Hi John, Have you looked here: https://www.keysight.com/at/de/product/54512B/1-gsas-digitizing-oscilloscope.html#resources Regards, Wolferl
By Wolfgang Mahringer · #118542 ·