Odd voltages on transistors in a Colorsound Overdriver build

Started by mordechai, December 27, 2013, 10:55:24 AM

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mordechai

I just measured my BC109 transistors on my Overdriver build...but the voltages are way off:

Q1 -- 8.52
Q2 -- 9.32
Q3 -- 9.32

I used this layout:



I am probably overlooking something very basic, but I'll be damned if I can figure out what I'm doing wrong.  I followed the layout quite carefully.  Any help would be appreciated.


Davelectro


mordechai

Actually, I figured it out...I forgot to connect one of the ground rails properly.  Everything's working fine now.  :-)