Agilent 34401a revisions

[HighVoltage]

Go to the Keysight Service Notes website:
https://support.keysight.com/s/service-notes?language=en_US

and type "34401A" into the search field and you will get all service notes for this instrument.

[Miti]

Go to the Keysight Service Notes website:
https://support.keysight.com/s/service-notes?language=en_US

and type "34401A" into the search field and you will get all service notes for this instrument.

Thanks, that works… on my laptop at work. Zero service notes on my phone. I’ll check from home tonight. 

Edit: It gets even more interesting. If I connect to internet using my LTE data, it doesn’t find any service notes. If I turn on the Wi-Fi and connect to the company internet, it finds all 14 service notes. Craaazy…

[GigaJoe]

more likely you phone browser behavior, cutting some script.

[Peter_O]

I've bought this one:
https://de.aliexpress.com/item/1005003371396426.html
for 34 Euros incl. tax and shipping and received it 2 weeks later via DHL in Germany well packed in a small cardboard parcel.

[Hydron]

Mine (same seller) is out for delivery now... but Evri (aka Hermes, name change probably aimed at tricking people who've had bad Hermes experiences) is indicating that they're going to try and deliver to my work address (clearly a business) between 5 and 7pm, so it'll be closed and I'll need to wait a while longer before reporting back on my order 

Edit: it showed up, was also well packed (important as the box had taken a beating) and looks to be in good new condition. Will report back once I've installed it, might be a few days until I have a chance though.

[Hydron]

Found some time to put it in my meter, results were in line with Miti's (i.e. good brightness and evenly lit). Don't have a before photo unfortunately and not much point in an after one (will look like Miti's).

Examining my original VFD (Samsung) vs the Aliexpress clone shows some pretty close copying going on; the main differences I could see were some slight differences in the phosphor (Samsung was a bit whiter), and the grid infront of the anodes was a bit finer on the original (i.e. a bit higher quality).

Zero issues getting it installed - a good desoldering iron makes short work of it (the VFD was one of the easiest many-pin devices I've ever desoldered, due to it's long flexible pins and large hole clearances) and my original display should still work fine if I ever need it as a backup.

[coromonadalix]

check the other thread   early 34401a revision  lolll   number 42  loll