Thank you for the reply. I read that there was an option to purchase the option, but I'm sure that was many years ago. I haven't opened up the cover yet, my guess, there is no speaker there. I also read that when the machine powers up, there would be a beep, which there isn't.
I will follow the instructions on backing up the calibration data, no sense in making more work for myself. From the E series manual, there appears to be a 3.3volt 1Ah lithium cell with wire leads. Following links, it appears that current cells by the recommended part number do not have leads and go into a holder. If the replacement needs leads, I'm sure I can find somebody to weld some tabs onto a new battery, I know that soldering to a cell is generally a no-no, although I've actually done it many times, using the proper soldering flux, solder, and a very hot iron to get the process over quickly.
On an old spectrum analyzer, I recall using the chart output going to a speaker would actually play the sounds, not all that important, just wondering how difficult it would be to get the speaker to work, I'm sure it isn't worth the trouble.
Jim H.