[hpsdr] my pico 120 measures low
Duffy
na6mm_mm at earthlink.net
Wed Jun 6 06:57:08 PDT 2007
Ok I received my pico psu-120 supply. It is , as I feared , a little
lite on the -12v output. The voltage measured with Janus-Ozy attached is
-10.75v . Now looking at the schematics the only thing the -12v feeds is
a -5 v regulator on Janus and it's output measures -4.75 v. So the Janus
board is probably happy , but I don't like the fact that the pico -12v
is being dragged down to -10.75. On teamspeak ,I beleive it was Dan ,
who mentioned he has a pico psu 120 wide range unit that has 12 to 24 v
input spec and a 100ma minus 12v out spec. He thinks his was putting out
-11.75. So although mine does , kinda run the boards, It's not right and
may cause future probs or fail and I think I may go for the wide range
input unit. Any body else have theirs running on a pico, and what does
your -12v measure. Roger w3wz you didn,t mention what your -12v reads.
Duffy NA6MM
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