As in this video
IBM Model M SSK with xWhatsit Model F Controller and Solenoid
admin Answered question July 7, 2020
As an update, solenoids are now available to order! They work on any xwhatsit Model F or xwhatsit beam spring keyboard! Each solenoid requires a solenoid driver too.
More details here: https://www.modelfkeyboards.com/product/xwhatsit-beam-spring-or-model-f-controller/
admin Answered question July 7, 2020