#A4# #Cassette out bit# #1u# #22n# #4k7# #4k7# #100# #Cassette recorder# #22n# #10k# #470k# #10k# #3n3# #10u# #2k7# #2k7# #4k7# #220k# #1k# #+# #-# #+5V# #+5V# #+5V# #cassette in bit# #cassette player #