HP 1820-0092 Nixie Driver

I was taking apart some display adapters recently and I came across some Nixie display chips I hadn’t seen before, namely the HP 1820-0092. It is similar in function to chips like the 74141 – it converts 5V BCD values into high voltage outputs suitable for driving Nixie tubes. Here is a picture:

I had a bunch of them so I decided I should figure out the pinouts. Here are the results:

One Reply to “HP 1820-0092 Nixie Driver”

  1. Hi,
    I just came across your site, as I’m searching where to buy one 1820-0092 to populate the 6th digit on my HP 5221B Counter. I have all the other parts, but this one is still missing.

    Would you happen to have a spare one you’d consider selling?

    Best regards,

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