First quick look didn't turn up anything, even BAMA is bare. When buying an old analog scope it is always good to check for availability of at least service manual before buying, unless it's free. A good reason to pay a bit more for a Tektronix, as many of the manuals are easily available. These 25 year old scopes are on the verge of needing work, if not already, and that can be very difficult without a decent service manual.