HP serial loader roms

[Jay West]

Bob wrote...
> The paper tape loader ROM will actually 'work', if your 12531 interface
> board happens to power-up in receive mode.
Noted... with your caveats. Interesting.

This thread jostled a memory cell in my brain... I do remember one of my 
machines having a loader room with a sticker on the top that said "12531". I 
should locate it and dump the contents and see whats up there.

Jay