[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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