I forgot to say... forget the memory test. : )
Visit the link below and run this code with an AM radio on top of the Altair (case off).
Experiment with placement of the radio and frequency setting. I've found that a cheap clock radio will pick up the sounds much better than a digital tuner...
http://www.digibarn.com/collections/...ein/index.html
Look for:
Try this with AM Radio:
000:003 Inx BX
001:170 Mov A,B
002:241 And C
003:075 Dec A
004:302 Jnz 000:003
005:003
006:000
007:303 Jmp 000:000
010:000
011:000
If you want you can also enter in the historic "fool on the hill" listing, but it takes a lot longer.