Hello,
I have a 78-2, the pictures of your machine look very much like what I have, but I think you noted it as a 78-1 or 78-3. I cannot seem to find a picture of the 78-2. Can you tell me the differences between the 78-1, 2, and 3? I hope someone is still receiving these messages, the last post was some years ago. Thank you for any information.