Funny that you mentioned the Super 70 PU, because that is what I used to replace the originals 30 years ago.
N'oge a ọ naghị enye nnukwu ihe, n'ikpeazụ ọ bụ 40w nke m nwere ike iji dịka anyị mere afọ iri atọ gara aga iji chajịa batrị.