How to Count the Jews - May 16, 1981 -

The Bank Account of Zechus Avos - Feb 9, 1989 - The difference between the tochacha of sefer Vayikra and of sefer Devarim is whether there's hope - there's hope only when a person grabs on to the zechus avos

Yom Tov and Shabbos - Two Kedushos or Kedusha Achas - Feb 25, 1976 -

Hilchot Birchat Hamazon - Dec 29, 1983 -

Matan Torah and Kimu V'kiblu - Feb 10, 1983 - This shiur was digitally restored by the Avi Yaffe Jerusalem Recording Studio and is being donated to the YU Torah Archives by Mordechai I. Twersky, (YC'85) of Jerusalem in memory of Rav Alpert.

Pesach Hagadah - Apr 7, 2008 -

Haggadah - Jan 1, 1985 - Thanks to 613.org and Fivel Smiles

Vezot Haberacha 5745 - Jan 1, 1984 - Thanks to 613.org and Fivel Smiles