On 2008-04-22, EADGBE wrote:

I have revised the schematic further by adding the voltages at the
base of Q205 and collector of Q204....

http://i240.photobucket.com/albums/f...mplifier-2.jpg

I guess I don't have enough equipment to fix this problem. I can't
afford a 'scope right now. This will have to go on a shelf until I
can deal with it.

If I understand this correctly the nominally 5.8 V point on Q208 base
is close to 0 V but the output node is OK at +6.4 V.

If that's right, Q208's VBE plus the drop across the lower 3.3 ohm output
resistor is about 6.4 volts rather than about 0.6 V. That can't be
so unless the lower 3.3 ohm resistor is open circuit, or it has 6.4 V
across it and is boiling hot, or Q208 is open circuit B-E.


--
John Phillips