| Products > Test Equipment |
| My poor mans SMU - The Agilent 66311B |
| << < (19/41) > >> |
| TheSteve:
Yep, that has got to be a factory option. I see you also have the local/remote sense switch. I am guessing your board is through-hole instead of surface mount. |
| stuartk:
I'm not sure when they switched from through hole to surface mount. Look at the first 2 digits of your serial number and add 1960. This gives you the year of manufacture. The next 2 digits are the week. My first 4 digits are 4300, meaning manufactured in 2003, week 0 |
| ve7xen:
Mine is 1998/44. |
| bson:
--- Quote from: ve7xen on February 26, 2016, 09:42:40 am ---Not sure how painful it is to order, I think there is an automated process in the US, but in Canada it seems I need to call them... --- End quote --- They're a complete pain in the arse in the U.S. - you have to get a quote for the $3.67 knob, then because they don't have a checkout system you have to either telephone or telefax (yeah, right, remember those things?) payment information like a credit card. The net result it takes someone there 15-20 min to take your order, spell out your shipping address, etc 7 times to make sure there are no errors, for a sub $5 sale. They waste both their own and your time, either of which amounts to a lot more than than the price of a plastic knob. They're just not in the modern epoch. |
| ve7xen:
So I've done some additional testing/calibration, and my box does great as a power supply, well within spec per the verification procedure after calibration. However the current sink seems to have failed short. Though this would seem to short across the output rails, so perhaps it is part of the control circuitry for the 'downprogrammer' that's the problem. In trying to track this down I'm finding this is by far the worst piece of HP test equipment to work on I've ever seen. All the component designators are hidden under the components, many of the test points called out in the service manual are unreachable with normal probes, and no schematic or component placement diagram seems to be available. It looks like I'm going to have to remove the A1 board to do further testing, which is also a much more arduous chore than most HP gear. Ah well, at least it makes a great power supply if nothing else. |
| Navigation |
| Message Index |
| Next page |
| Previous page |