oh, I misunderstood ... sorry about that... I took off the 7912 and checked the voltage in the diode's anode that was connected to it and is -18Vdc aproximately. Then I put back the regulator and measured the voltage in the input of the 7912 regulator and it is -6.3 Vdc.
---------- Post added at 12:07 ---------- Previous post was at 12:04 ----------
Thanks dselec, I checked that connection, at least its working in the positive side, but now I have that little problem of low voltage in 7912 output (- 4.6Vdc aprox)
1=grn
2=in
3=out did u see my drawing ?
Thanks dselec, I saw your drawing, I took that in consideration for regulator conections. It doesn't really get hot alexan_e, it gives me low voltage only. I measured the center tap - end transformer wire and it's 13.5 VAC, which I think is OK. Also i measured 0VAC in the output (where is -4.6Vdc), is it important to measure the AC voltage in this point?
opps coffee break got to go can u help him here alex.?
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