Wozmon sends all characters to $D012 with the bit7 high.
Modern replicas and emulators print an 'H' when sending #$48 or #$C8.
I want to know if sending #$48 to $D012 in an original Apple-1 also prints 'H'.
If you have an original Apple-1, could you run this little program?
0000 A9 48 LDA #$48
0002 20 EF FF JSR $FFEF
0005 A9 C8 LDA #$C8
0007 20 EF FF JSR $FFEF
000A 4C 00 FF JMP $FF00
How many 'H's does it print?
On mine I get;
0000: A9H_\