Right on, joe134cd! But I don't know about puters and cells.
When I was active in the ministry, I had some conversations with
members of the Plymouth Brethren. They are divided into two groups, Open
and Exclusive, and the latter group is pretty much anti-education. In
some ways they are like JWs but doctrinally there are some big differences,
like hellfire and the trinity. As for their view toward higher
education, this chap's article from the University of Worcester is
informative:
https://eprints.worc.ac.uk/241/1/EXCLUSIVES.pdf
Hope this helps. Cheers.
BTW, the Christadelphians go back to before Russell's day and thus cannot be an offshoot of the Russellites.