Products > Test Equipment

HP410C late version

(1/4) > >>

Ovi4:
Hi, everyone.  I recently purchased a  HP410C  (E-bay) with no AC Probe and in my mind and according to what I've seen so far (On YouTube and other places)  it is a hybrid meter that has tubes and solid state components as well.

Well, ... to my big surprise the item that I received is nothing like I thought It would be, simply because it has no tubes, no stereo (audio style jack for the AC probe) but has a BNC style socket instead. Further on inside, there is no optic chopper to be seen but there is some sort of newer revision PCB  that no longer uses a chopper component but some FET transistors and some op-amps (I think).
So,  after searching high and low...  For the life of me !!! I just simply could not find a full  manual  for  this version  other that the 1 page solid state  module schematic diagram only  the one that seems to have replaced the chopper version found on BAMA site.

I've attached  some relevant pictures below.

I really need the full manual since I really need to know what kind of newer version AC probe it has and how it is built since it no longer uses the tube style one

Now,  if anyone has or knows  where I could get a full service manual from, would be of a great help.

Any links or pointers are much appreciated.

Thank you

TimFox:
I can't tell in your attached photo:
Is the AC probe connector a BNC or a triaxial connector?

Ovi4:
Hi, it is shown at picture number 7 as you count from the top down, and yes is a normal BNC style socket.

factory:
Not mine, but serial number very close to your 410C, the BNC is definitely not original.





Can't comment about the later A3 board, you could check component date codes to determine if it's original, or a replacement done by HP or someone else.

This service manual covers both the older & later versions, it's two manuals combined into one (crappy scan) pdf. https://www.keysight.com/us/en/support/410C/multi-func-meter.html

David

TimFox:
The meter shown in factory's post above uses a vacuum diode in the probe, and a BNC would not have enough contacts.
The original diode used in the early 410s was an Eimac 2-01C, which might have been replaced later by an EA53.

Navigation

[0] Message Index

[#] Next page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod