[volt-nuts] Traveling Standards

[Andreas Jahn]

> The schematic is attached to this page:
>
>   http://www.c-c-i.com/TS
>

Mhm,

im missing a 100nF at the output of the 7815.
and a 100 nF directly at the heater input  of the LM399.
Also at the MAX6350 a 100nF is missing.

It is essential that these capacitors are located directly
at the pins of the respective ICs.

I have seen a 3,3V Voltage Regulator shifting output voltage by
several 100mV with a 3V/m electric field strength.
(which is quite low compared with a wireles phone of 30V/m or a mobile with 
up to 200V/m).
And there was already a 10uF Tantal at the output.
The voltage shift could be elimininated with a 100nF directly
at input and output.

With best regards

Andreas