HaRav Moshe Mordechai Karp

Please note:

This page and all derivatives is/are a continued work in progress. Please send a message for any corrections and those will be considered and/or actioned as soon as possible.
Just because the below authorities wearing Techeiles are listed doesn’t mean we have contact info on all of them. This is for informational purposes only.

“Why don’t more Ashkenazim tie techelet according to the Tosafos? One reason might be found in a responsa written by HaRav Moshe Mordechai Carp in 5772, where he notes that you cannot use a techelet string in place of white, therefore if halacha is not like the Tosafot, you would have too many techelet strings in your tzitzit.”

Update 2021-11-01 – R’ Karp now wears Tosafos ratio as well.