In this video I'll show how to upgrade your HP 3325A function generator with the High Voltage Output option 002. Link to all files, Gerbers, BOM, etc: drive.google.c...
Thank you so much for taking the time to show and explain all the details and share your expertise with us hobbyists. It is always a pleasure to watch your very instructive videos. Keep it up!
I was very pleased to find your video and even more pleased to find your PCB gerber files for the Opt 002 board! Just sent off PCBWay and placed an order with Digikey for the various parts I don't have in my stash. Very excited to try upgrading the unit I have to the HV output. One note for those converting from the standard configuration, according to the manual in section 8-M-2, there's a jumper you'll need to cut on the A6 logic board located between the configuration switch block S1 and U43. This lets the logic know you've got the 002 HV Option installed.
I have one of these as well. However I was fortunate enough to find one with both options 001 and 002 for a reasonable price. It also appears to have been serviced before it was eventually removed from service and found it's way to my home lab.
04:49 Thanks for explaining the difference between phillips and pozidriv, makes a lot of sense. Awesome video 👍 I like following along with your projects and upgrades
Unfortunate that you found the power wires for the 002 option cut off. I've just looked in my 3325A - which doesn't have the option 002 board. The wires are all still in place, curled up, and cable tied, under the transformer. Still has the power supply plug to fit the 002 board too.
Hi there, interested in building this, hope you still look at this after all this time. My query is about the BOM in the Google drive as there seem to be a couple of questions and comments in the forum which differ from the BOM you have put up. Member P diddy refers to values for R10 and C19 but neither the HP service manual or your BOM have values or have them in the circuit schematic. The next query is using 2N3904/06 transistors, again P diddy refers to the need to use 80v transistors in some locations which you agree with but the BOM lists 3904/06 throughout. And finally in the blog you mention the 10k resitor should be 0.1% and say that you used 1% for the first build and will correct that in the next build, unfiortunatley the BOM still lists 1% parts. Hoping you can help, is there a newer version of the BOM ?
Good question... I'm not sure. :D It wasn't done in a day, that's for sure. Besides redrawing the schematic from the service manual and laying out the PCB, which is normal for any project, I spent a bit of time cross referencing and figuring out what transistors HP used as they didn't reveal the actual part numbers for all of the ones they used.
Unfortunately I am unable to construct these for sale due to time constraints, however you can get PCB's made from the files linked in the video description.
I used an NMB fan, part number: 3115PS-12W-B30-A00 from Digikey. Here's a link to the exact part I used: www.digikey.com/en/products/detail/nmb-technologies-corporation/3115PS-12W-B30-A00/740239
Thank you so much for taking the time to show and explain all the details and share your expertise with us hobbyists. It is always a pleasure to watch your very instructive videos. Keep it up!
I was very pleased to find your video and even more pleased to find your PCB gerber files for the Opt 002 board! Just sent off PCBWay and placed an order with Digikey for the various parts I don't have in my stash. Very excited to try upgrading the unit I have to the HV output.
One note for those converting from the standard configuration, according to the manual in section 8-M-2, there's a jumper you'll need to cut on the A6 logic board located between the configuration switch block S1 and U43. This lets the logic know you've got the 002 HV Option installed.
I have one of these as well. However I was fortunate enough to find one with both options 001 and 002 for a reasonable price. It also appears to have been serviced before it was eventually removed from service and found it's way to my home lab.
04:49 Thanks for explaining the difference between phillips and pozidriv, makes a lot of sense. Awesome video 👍 I like following along with your projects and upgrades
Brilliant work! Thanks for the files. I'll definitely route a board.
Great video and project! I have one of these and use it all the time. Thanks
Unfortunate that you found the power wires for the 002 option cut off. I've just looked in my 3325A - which doesn't have the option 002 board. The wires are all still in place, curled up, and cable tied, under the transformer. Still has the power supply plug to fit the 002 board too.
Nice teardown!
Great! Thanks for sharing.
Hi there, interested in building this, hope you still look at this after all this time. My query is about the BOM in the Google drive as there seem to be a couple of questions and comments in the forum which differ from the BOM you have put up. Member P diddy refers to values for R10 and C19 but neither the HP service manual or your BOM have values or have them in the circuit schematic. The next query is using 2N3904/06 transistors, again P diddy refers to the need to use 80v transistors in some locations which you agree with but the BOM lists 3904/06 throughout. And finally in the blog you mention the 10k resitor should be 0.1% and say that you used 1% for the first build and will correct that in the next build, unfiortunatley the BOM still lists 1% parts.
Hoping you can help, is there a newer version of the BOM ?
Very useful stuff. Will this board work with 3325B?
Yep, it is fully compatible. :)
Nice project. How much time did you put into this build? I would imagine that it took a while to gather all the info.
Good question... I'm not sure. :D It wasn't done in a day, that's for sure.
Besides redrawing the schematic from the service manual and laying out the PCB, which is normal for any project, I spent a bit of time cross referencing and figuring out what transistors HP used as they didn't reveal the actual part numbers for all of the ones they used.
@@NearFarMedia Did you really superglued the transistors? Is superglue a good thermal conductor for this application?
Hello . Super movie. Is it possible to buy a ready-made electronic board from you ? I would love to buy it for my generator .
Unfortunately I am unable to construct these for sale due to time constraints, however you can get PCB's made from the files linked in the video description.
can you tell me the model of the fan?
and where did you get it?
I used an NMB fan, part number: 3115PS-12W-B30-A00 from Digikey.
Here's a link to the exact part I used:
www.digikey.com/en/products/detail/nmb-technologies-corporation/3115PS-12W-B30-A00/740239