How to order EBTKS

Sorry, EBTKS is Out of Stock
See below for the Wait List

EBTKS is a hobby project, and as such there was no sales website, this page was it. On December 26th 2025 the last EBTKS was sold, a few days ahead of my prediction of the end of 2025. There are no plans to make any more. 423 units were shipped to 366 people in 34 countries.

I will maintain a wait list in case I decide to make more EBTKS in the future, but it is unlikely to be before 2027, and will depend on the following

  • Sufficient requests on the wait list

  • The tariff situation

  • Available time to take this project on again

  • The current state of the firmware

  • Enthusiasm

The target price will remain the same, $160, but prevailing tariffs may make that not possible.

To be added to the wait list, please send an email to ebtks_wait_list@fliptronics.com

This is not a commitment on your part, just an expression of interest.

Please set the subject to: EBTKS Wait List

In the body of the email, please include the HP Series 80 computer you have (i.e. 85A, 85B, 86, 87XM, etc.) and if you might want more than one EBTKS.

I will reply with a confirmation email advising that you have been added to the list.

Thank you for your interest in EBTKS, and I’m sorry that they are currently unavailable.

Philip Freidin,
27th December 2025