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| HP LCR/LCZ Comparator Handler Interface Recreation: 16064A |
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| TERRA Operative:
--- Quote from: TERRA Operative on June 17, 2024, 10:54:58 pm ---What's the exact size of the PCB? I'll stitch it together in Photoshop to make a shape-corrected image of the PCB. --- End quote --- @ZGoode Did you manage to get the PCB dimensions? |
| ZGoode:
The approximate measurements of the board are 3.5" x 10". Although, it would probably be more accurate to use the 0.1" hole spacing of the DIP IC's as a reference |
| TERRA Operative:
It's hard to use the board features as a reference due to perspective and parallax. Are you able to measure it more precisely? A decent ruler should get you to half a millimeter if you don't have calipers. |
| ch_scr:
--- Quote from: TERRA Operative on June 17, 2024, 11:08:26 pm --- --- Quote from: ZGoode on June 17, 2024, 07:12:03 am ---The 2 weird parts not off the shelf are the 2 HP labelled IC's. I could not find anything at all for these components anywhere on the internet, as far as I can find, they don't exist anywhere else. Based on the capacitors and resistors setup around them I am under the assumption that they are some kind of comparator or amplifier, but have not confirmed that yet. - 1x 900 602 8828 - 1x 900 577 8834 --- End quote --- Those two, the '8828' and '8834' are the date codes (28th week of 1988 and 34th week of 1988). So the part number would probably be some combination of 900 602 and 900 577. Sometimes a first digit will be dropped due to space constraints on a small part, so the part number could be something like 1900-0602 etc (HP part numbers are in the xxxx-xxxx format). It looks like 1900-xxxx part numbers are diodes, 1901-xxxx looks like discreet semiconductors like diodes and LED's etc. Integrated circuits and transistors seem to be 18xx-xxxx part numbers, with integrated circuits being around 182x-xxxx. Looking at the passive components and stuff around them, maybe either opamp's, optocouplers or voltage regulators maybe? --- End quote --- The writing looks a lot like HP optocouplers. One has the RU safety marking, the other space for it. |
| ZGoode:
Well, I ended up purchasing that copy of the 16064A manual on eBay. Hopefully there is more information on it that will assist in the recreation efforts. As soon as it arrives I will scan it at a high DPI and upload the PDF here (and probably to XDevs as well just so it is available in a few different places). |
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