RR#5: Apple II marketplace pickup is filled with surprises!

[@john_ace]

Apple II and II+ are mainly differentiated by the Rom. Additionally the board revision is important. Apple II were sold with boards up to rev7 (very rarely) but most commonly from rev0 to rev4. Apple II+ could have boards from rev3 and rev4 (rarely) but more commonly rev7 onwards. As a rule of thumb: boards with the memory select blocks (4K,16K) are Apple II while all other are Apple II+. The ROMs on the boards determine if it is an Apple II or an Apple II+ in software. The very early rev0 - rev2 boards are expensive while rev3 and rev4 still get you >$100. Someone who restores an original Apple II case might pay premium for a nice rev3 or rev4 board, especially if the original Int-Basic ROMs are installed (they cost >100$).

[@RDKLInc]

Thanks for the info, good stuff. Yes supposedly these II boards have the + ROM and are therefore less desirable

[@john_ace]

5:24 is a 80col text card. Only 2K SRAM for text mode. 7:17 the Apple //e with the white keyboard lettering is an early Apple //e. The Apple II and II+ cases can be differentiated by the label on the bottom: A2S1-xxxxx for Apple II and A2S2-xxxxx for Apple II+ where the xxxxx is the serial number (lower=older). An Apple II with a 3 digit serial number is extremely rare >25,000 is very late for an original Apple II. The floppy drives have serial numbers as well. 500,000 is a later drive. 8:38 has an replacement PSU, the sticker on the PCB shows the production number (ca. 1,200,000-3,300,000 lower=older) 5:56 is a test pattern on the //e boards that runs when the keyboard is not plugged in (for fast factory testing)