Macintosh Classic I upgraded to 4MB #2 This one i bought in Tilburg, it was non-working/untested. After a re-cap i tried to start it and it started :- ) Working harddrive of 40MB and 4MB ram. But during the re-cap i discovered something… Classic I (v1) vs Classic I (v2) It contained a little cap.. Which when removed unveils a microphone jack? Well my guess… Apple ran out of the stock of Classic I housings and didnt want to make more, so they ran Classic II housings with this little plug and a sticker. Classic II vs Classic I (v2?) And best of all no battery leakage !