Hi Ok, well let’s put some dimensions on it.
Say that the new board for the counter costs $400 each. (and that’s probably low). How many are people likely to buy? If so how much would you pay for a working 5370? Bob > On Jan 26, 2016, at 11:08 PM, Perry Sandeen via time-nuts > <time-nuts@febo.com> wrote: > > Hi, > Wrote: Since the front end chips are mixed signal ASIC’s, it will take more > than a bit of time to replace them directly. Re-doing the entire front panel > board is the most likely way to “fix”the problem. The question is - why do > that at all? Just do a PC instrument that does the same thing as the counter > with way less effort….. > Well, I have two reasons not to. > First I have about $1800 invested in my 3 5370’s including the new CPU > boards and blowing that off is not in my budget. I’ll kludge the living > daylights out of my units before blowing off my investment. > Second, I haven’t the slightest clue on how to do a PC instrument and I have > to many other projects to finish to learn something new. > Also there was much discussion about A and B cooling in the past and it seems > the only things some did to their units was the addition of fan(s) on the > cooling fins. I had an external fan on a B I was running and the thing still > was too hot. > IMNSHO, I believe the front end chip failure is aggravated by the high > interior heat level. I’m committed to a number of other projects so it will > be a while before I can work on mine. > I’ll either rip the whole PS out and put it on another chassis, try better 3 > terminal regulators instead of the installed pass transistors, install > switching regulator PS’s in place of the original PS, cut holes in the top > lid and install 10 or 12 computer fans. Or a combination of the afore > mentioned. > I don’t give a rat’s behind how it will look. I’m only interested in it > working properly. I’ve spent 50 years in the electronics industry and I will > find a way to skin this cat. I’ve done this to other equipment before. And > when done I’ll tell the list how I did it. > Regards, > Perrier > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
