When a Tallit is worn

	How to tie Tsitsit (NBS)
	Amsterdam talitot tradition (NBS)

Day	Chazzan	Tsibur
Shacharit
All days	Yes	Yes
9 Av	No[1]	No1
Minchah
Weekday	No	No
Friday and eve of Yom Tov[2]	Yes	No
Shabbat	Yes	Yes
Rosh Chodesh	No	No
Yom Tov2 & Yom Kipur Neilah	Yes	Yes
Taanit	Yes[3]	Yes3
Chanukkah, Purim	No	No
Arvit
Weekday	No	No
Friday night	Yes	No
Close of Shabbat and Yom Tov2	No	No
Yom Tov2	Yes	No
Yom Kippur (Kal Nidre)	Yes	Yes
Close Yom Kippur	No	No
Chanukah	No	No
Purim incl. Megillah	Yes	No

The Chazzan used to wear a silken Tallit, donated by a Mr. de Castro. At a certain moment the Rabbanim decided that the silken Tallit was only permitted for Arvit. For the other services a woolen Tallit had to be used.

Boys start wearing a Tallit as of the age of 4-5years old.

   

Tzitzit have 10-5-6-5 windings, the number of yod keh vav keh (‘י’ה’ו’ה).
The oldest source for this minhag is Rabbi Solomon Molcho, born in 1500 and burned at the stake by the Inquisition in 1532. This can be found a.o. in ש”ע או”ח יא מגן אברהם כב, in the באר הטיב נד and in משנה ברורה ע.