Will a gramophone play 33 LP records?

Answer 1

yes

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It depends on how generic you are using the term "gramophone." A non-electrical sound producing phonograph (acoustical) either spring wound or electric motor (often called a "Victrola") will not play 45's or 33's. They are intended for 78's only through the late 1940's. By about 1950 the 78's were made of a softer material and you will ruin them trying to play them with a steel needle.

Modern electrically amplified machines that have the 33 speed on them you can play LP's on or 45's on. Just make sure the correct stylus is installed so you don't damage your records.