The ‘Potato’ mod on rev 0.7


Changing 74AC74(U11) with PO74G74A has been suggested for a long time. I can confirm it is safe and easy to do, here in few simple steps:

1. Remove U11, preferably by hot air. Turn the board back and cut the 5V trace in the corner

(click for larger view)

2.  Solder the new chip and put a small wire between the two decoupling caps (hot side, not GND)

(click for larger view)

You are all set!


2 thoughts on “The ‘Potato’ mod on rev 0.7

    1. m0nka Post author


      I think was described in some doc in the group or Github, can’t remember. The chip works upto 750 Mhz and
      allows the mcHF mixer to operate better on 10m, if i remember correctly.



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