i wanted to know if the X-reference for the MM5837 was a SAE800. I called National yesterday to find out if they had a substitute for the 5837 and they led me to the SAE800. but somehow that doesnt feel right to me. let me know what you think.
I don't know about subs. If you need one, I have an extra.
By the way, on the package (Radio Shack) it says S2688/MM5837 so I guess S2688 is a sub...