This work is shared under the CC BY-NC-SA 4.0 license.

For detailed building instructions see my page on Thingiverse.

Summary

This is a HP-163 compatible connector I made to power an old HP 5245L counter I bought from a retired electronic tech.

These connectors are nowhere to be found these days unless you want to pay through the nose for a "vintage" cable on eBay.

More information on the PH-163 here.

If you like this and want to incentivize me to make more, consider a donation.

If you don't have a 3D printer, I published the model on JLCPCB. You can have it made in black SLS nylon (recommended) for less than 4US$. Shipping starts at 2US$.

WARNING! RISK OF DEATH!

Mains voltage is dangerous. I am not an electrical engineer and cannot guarantee the safety of my design. Make it at your own risks.

If you have a doubt, do NOT build this.

CAUTION!

Old electrical devices should not be left unattended, even when they seem powered off (for example, the HP counter is still keeping its crystal oven on even when it is apparently "shut off"). One of the components could fail suddenly and cause a fire (a few diodes went up in flames while I was testing my unit). Also electrical standards have evolved and these devices are very probably less safe than modern equipment.

ABSOLUTELY NON-COMMERCIAL

I MEAN IT. You can make this connector for yourself, AT YOUR OWN RISKS, but by downloading the files you are accepting the terms of the license which expressly forbids you to SELL the model or the prints in any way shape or form. You can modify and re-share the model but you HAVE to credit me, and you can’t share it under ANY OTHER license than CC BY-NC-SA 4.0. It’s not because it’s available to print for free that the model is yours to do as you please. It's free as in free speech, not as in free beer.

If you don’t like the terms of this license, go ahead and make your own.