(1) Cases required to be tried by jury shall be so tried unless the defendant waives a jury trial in writing with the approval of the court and the consent of the Commonwealth. (2) In a case tried without a jury the court shall make a general finding and shall in addition, on request made before the general finding, find the facts specially. Such findings may be oral. If an opinion or memorandum of decision is filed, it will be sufficient if the findings of fact appear in it.
