Re: power supply flakiness of MuP21 boards

[Penio Penev <penev@xxxxxxx>]

Dear MISC readers, 

We had the following discussion with one of our MuP21 engineers:

> Regarding Andrew's letter we can give the following suggestions:
>  - larger power decoupling capacitors (220n to 1uF);
>  - large (>4000 uF) capacitors before and after the 7805 regulator.
>  - a stable AC source yielding quiet .5 amp at 7.5 V;
>  - reliable sockets.
> Also, the 330pF in the video output may be safely removed.

Take it for what it's worth. (And let me know of the result :-) 

Cheers,

--
Penio Penev <Penev@pisa.Rockefeller.edu> 1-212-327-7423