R' Rosenfeld - Sichos HaRan by Sichah/ שיחות הר"ן
SICHAH 175 – Who Can Make a Pidyon?
Podcast (shiurim): Download (Duration: 9:31 — 13.1MB)
Sichos HaRan 175 – Who Can Make a Pidyon? Speaker: Rabbi Zvi Aryeh Rosenfeld zal. (Lesson rw39aclip-6. Recorded in 1978.)
The entire shiur is HERE.