Would like to strip these boards, but it just takes to long
OK, down the rathole again with a CSA8000b...
4 to 5 yrs ago, I bought a CSA8000B for $150. The person was local, college student thought it was a scope, even delivered it. It powered on but had the Dallas eeprom (if that's the right term) issue so it didn't boot. The instructions on eevblog are good and I was able to bring it up but you need the dallas eeproms to hold the boot instructions or its a hassle getting it to run. So I bought the dallas modules for both the PC and PPC boards, carefully soldered them on, had to go back and touch them up, etc. Not a lot of fun as one is up next to a card connector and yes, I had some melted plastic by the time it was done. I had programmed the eeproms and the unit booted correctly. I have a 20Ghz electrical module and that came up. But when I measured the calibrator, I remember the voltage was low by a factor of 10 maybe. So after playing around with settings I powered down, reseated the cards and of course, my brand new eeprom from asia hadn't held the config. There isn't much in there, just a couple instructions on where to find the PPC boot code! But do you think it could keep it just once!! Nope.
And this really po'ed me! While typing this the guy who agreed to sell it to me for the asking price just said he had a higher offer, $50 more. That's a little lame, don't you think? Told him to keep it. This is a company too, not just a person on the web. I mean is that any way to do business?
Jerry
What was the removable cover and changeable batteries version?
The NVRAM's?
I found someone that is reasonably equiped to do some hobby+ grade adjustments and calibrations for me from time to time. Certainly not for all devices but I hope to be able to work with him for devices that have lost cal memory. Example:
https://www.ebay.de/itm/145695383205?itmmeta=01HT8G38K40K7WEK06B9FP4Q64&hash=item21ec1f1ea5:g:gpkAAOSw4cZmB~NT
I'm not trying to flip the unit to you guys but I was just wondering what your impression is? Does this offer added value? Would it increase your likeliness to purchase? Would you be willing to pay a few bucks more? Further tips and tricks?
Thoughts greatly appreciated...
I found someone that is reasonably equiped to do some hobby+ grade adjustments and calibrations for me from time to time. Certainly not for all devices but I hope to be able to work with him for devices that have lost cal memory. Example:
https://www.ebay.de/itm/145695383205?itmmeta=01HT8G38K40K7WEK06B9FP4Q64&hash=item21ec1f1ea5:g:gpkAAOSw4cZmB~NT
I'm not trying to flip the unit to you guys but I was just wondering what your impression is? Does this offer added value? Would it increase your likeliness to purchase? Would you be willing to pay a few bucks more? Further tips and tricks?
Thoughts greatly appreciated...
People on ebay want bargains; I doubt you'd get the money back you spent, at least on "calibration". Calibration only really adds value when it's traceable and over a period of time in order to demonstrate drift, or lack thereof, for example.
It might be worth it for as you say things that have lost cal memory, maybe...
I found someone that is reasonably equiped to do some hobby+ grade adjustments and calibrations for me from time to time. Certainly not for all devices but I hope to be able to work with him for devices that have lost cal memory. Example:
https://www.ebay.de/itm/145695383205?itmmeta=01HT8G38K40K7WEK06B9FP4Q64&hash=item21ec1f1ea5:g:gpkAAOSw4cZmB~NT
I'm not trying to flip the unit to you guys but I was just wondering what your impression is? Does this offer added value? Would it increase your likeliness to purchase? Would you be willing to pay a few bucks more? Further tips and tricks?
Thoughts greatly appreciated...
People on ebay want bargains; I doubt you'd get the money back you spent, at least on "calibration".
It might be worth it for as you say things that have lost cal memory, maybe...
I've noticed recently that a number of the descriptions for ebay items appeared to be written by AI.
Lots of waffle and "weasel words". I found out last night that ebay, in the UK at least, is offering AI generated descriptions
When I flog stuff on fleabay, I show the readings alongside the readings of other good quality but out-of-calibration equipment.
Considering the calibration state and accuracy (vs Keithley 2700) of the Datron 4805, To me it's pretty much the same as saying it was 100% tested.
I expect something like that if you sell something used.
I wouldn't pay necessarily more but I might be more incline to buy since it look well tested.
BTW you should check the ACI 20mA range on your Keithley 2700. Something is off
The last few months I've been working on resurrecting a HP 5245L counter, that was pillaged & left for dead, it's one of the few left that was built in the Bedford HP factory, which was only in use for a couple of years, before production moved to Scotland.
[...]
David
just got an order confirmation for ADJ LINEAR REG, LR8N3-G.
Maybe I'm actually getting them this time, original order was mid October.