About that simple hardware RNG

[SINCLAIR DOUGLAS N]

> The idea:  noise from an avalanching diode is applied to the input of an
> 8 bit shift register.  The SR is clocked at some fairly high sampling
> rate.  The 8 bits are made available on the printer port.
The shift register and timer probably involves 2 microchips.  Why not just
use 8 avalanching diodes, one for each bit.  Infact, you can use 13 if you
use the other printer-port input lines.