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Date
Re: Conductive Paint for Microcircuit Repair...
Hi Ken, The problem is most everything I have seen is geared to old circuit boards with rather wide traces. This board has 0.04mm traces. I fixed a few HP and tektronix hybrids that were easier to
By Chuck Harris · #145602 ·
Re: Conductive Paint for Microcircuit Repair...
I think that in addition to the near instant evaporation of such a small amount of paint, a single hair doesn't allow for the capillary action that exists in a brush with more hairs. Maybe I need to
By Chuck Harris · #145601 ·
Re: Conductive Paint for Microcircuit Repair...
Greetings, Years ago there was a conductive ink pen used to repair PCB¡¯s. I believe it was called ¡°Wink¡±. I just did a very quick search for conductive ink pens and it appears that such products
By ken chalfant · #145600 ·
Re: Wanted: 16902B recovery DVD, p/n 16902-14100
Media label: ( https://archive.org/download/ftp.keysight.com/2015.03.ftp.keysight.com.tar/ftp.keysight.com%2Fcos%2Foutbound%2F16xxx%20recovery%20images%2F16902-14100%2F16902-14100.pdf )
By Mark Litwack · #145599 ·
Re: 8702A service manual [SEC=UNOFFICIAL]
UNOFFICIAL I will have a look. It looks like the converter from vector to raster display is either not available or the price make sit not viable. So from what you saying, nothing to be gained from
By Wayne Eckert · #145598 ·
Re: Conductive Paint for Microcircuit Repair...
What about an ultra fine syringe? Just a drip at the tip might spread enough to cover the gap rather than pushing the plunger. I had to thin the GC Silver Print from time to time, but it went bad
By Michael A. Terrell · #145597 ·
Re: HP 8557A Start-Up Calibration & Linear Mode - Errors in Manual?
Frank, Ahhh¡­. looking at your photos your spectrum analyzer plug-in has suffered the ubiquitous ¡°shedding of the switch wiper contacts¡± by fatiguing of the tiny staked plastic pins that held
By Greg Muir · #145596 ·
Re: Conductive Paint for Microcircuit Repair...
I am not so sure that it is simply evaporation. I put Xylol, which is a slow evaporating toluene replacement. It dissolves the base nicely, but I still can't get anything on my one hair brush that
By Chuck Harris · #145595 ·
Re: Conductive Paint for Microcircuit Repair...
I've thought of soldering, but I am not sure that the arrangement would be satisfactory even with my Weller MT-1000 MicroTouch iron. Its tip is several times bigger than the 0.04mm traces. -Chuck
By Chuck Harris · #145594 ·
Re: Conductive Paint for Microcircuit Repair...
Maybe you can find a conductive silver or copper true "ink" rather than paint - thin enough to write with a quill pen. When I was much younger and could see great detail, I used to draw and write on
By ed breya · #145593 ·
Wanted: 16902B recovery DVD, p/n 16902-14100
As the subject says, I'd like to obtain a copy of the 16902B recovery DVD, part number 16902-14100. An ISO image was at one time downloadable from the Keysight FTP server. Thanks! Best regards, Eric
By Eric Smith · #145592 ·
Re: HP 83590A - Help understanding frequency band switching
If the YIG was replaced without moving the resistors it came with, couldn¡¯t that cause him to run out of adjustment?
By Ed Marciniak · #145591 ·
Re: HP 83590A - Help understanding frequency band switching
Probably a little late in the game for this but, I would have suggested walking through the adjustments without adjusting anything first to identify where your problems are, then use that in the
By Don Bitters · #145590 ·
Re: Conductive Paint for Microcircuit Repair...
I dont know composition of your conductive "ink" but if only problem is fast solvent evaporation, you can try to make solvent (acetone or MEK) saturated suronding atmosphere... Put piece of cotton
By Milan Vasic · #145589 ·
Re: Conductive Paint for Microcircuit Repair...
Solder paste looks like boulders at this magnification.? There must be a finer grade than I have.
By Peter Gottlieb · #145588 ·
Re: Conductive Paint for Microcircuit Repair...
This is a long shot - and a project in itself. If you can get some really fine wire (for example, a single strand from a Litz wire, with the insulation chemically removed), coat it with solder paste
By SCMenasian · #145587 ·
Re: Conductive Paint for Microcircuit Repair...
I don't know if this suggestion offers any help,? but when I've had to repair hair like traces I've used a strand of wire from a piece of A.C zip cord. Burt, K6OQK
By Burt K6OQK · #145586 ·
Re: Conductive Paint for Microcircuit Repair...
I have a bunch of highly conductive 2 part silver epoxy but it is past expiration date and a bit hard to mix.? It does solidify very well after mixing though.? It might work?? I have a whole bunch
By Peter Gottlieb · #145585 ·
Re: Conductive Paint for Microcircuit Repair...
Years ago when I used to paint cars with laquer, thinner was available in several grades, depending on application temperature. You wanted the solvent to flash off in a reasonable time, not too fast
By Paul Amaranth · #145584 ·
Re: Conductive Paint for Microcircuit Repair...
Hi Peter, The first time I tried, I used it at factory dilution. However, over the 10 years since I did it last, the syringes hardened... So, I reliquified them with acetone... The acetone did a nice
By Chuck Harris · #145583 ·