Change in component values

We have found that changing some of the component values will give slightly better performance. This doesn't mean that you have to change these components. But it will be a good idea to use the new values if/when building more decoders.
These components have changed:

D7: Changed from 5V6 to 6V2.
C2: Changed from 10uF/6V3 to 68uF/6V3. Package is bigger than original.
R1: Changed from 10k to 47k.
R4: Changed from 1k to 47k.
R5: Changed from 3k9 to 270k.
R6: Changed from 10k to 270k.

(C) 1999 Bo Brændstrup
Revised: December 7, 1999