1176 best low noise build

[Spencerleehorton]

I’ve opted to use some 24v bulbs I had I didn’t know how much current to give them but experimented and ended up liking 27ma at around 18v seemed to light them up nicely.
I wanted to use 3 of them, 2 for both VU meters and one for a front panel jewel light.
So using the 180 ohm 10W resistor with 37v off the diode bridge gives me what I want.
I have some 22k switched pots for the attack pot but the switch is disconnected in the CCW position, can’t seem to figure it out with the switch this way??

 

[Spencerleehorton]

Channel 1 isn’t playing ball, for some reason signal is only getting to q1 drain and no further? I’ve put in a brand new 2n5457 and checked the pin out?
Will try another fet but I’ve also changed q2,q3 and q4 and used scope but no signal through?
I’ve checked all resistors and checked all continuity through the first and second stage.
Also checked all voltages and all voltages are fine?

 

[Spencerleehorton]

Also one of the vu meters is sticky?
And since putting in the bulbs ch2 has got noisy so I’m thinking of changing the vu meters.View attachment IMG_0732.jpeg

 

[Spencerleehorton]

Also now thinking of going with a separate psu to feed both channels due to the noise?

 

[Spencerleehorton]

Have changed the Q10 to 2n5458 in channel 1 and now get small signal to q4 and see very low signal on output.
So then changed Q6 and Q7, no change.
Will now change Q8 and Q9 and see if anything changes.