8 Channel, 3U NEVE 1073 completed

[zachs]

Just want to say this thread/project is still 100/100. So impressive.

 

[inf0]

Hey there ! I'm working on a variation of this project and wanted to do the modification of the Decoupling & Output capacitor value increase as well.
Could anyone guide me as to which were the original values and to what they were increased to?

Is there any further adjustment that's gonna be needed if I increase those capacitor values?

Thank you !

 

[MidnightArrakis]

>> Why is -- R6 -- shown as being a capacitor? Is this an "OOPS"??? Or, some kind of "secret MOJO" modification???.....


/

 

[MathCantin]

>> Why is -- R6 -- shown as being a capacitor? Is this an "OOPS"??? Or, some kind of "secret MOJO" modification???.....

View attachment 140783
/

This is a big oops on the silkscreen! This is C7 and R6 is the resistor just behind The trace appears to be the same as an usual B283

 

[inf0]

Silly question, when measuring the transistors for voltages , where do I connect the other probe? ( chassis or audio ground? )

Thank you

 

[allergies.for.all]

Look amazing!

 

[inf0]

I run into some issues with sound passing but very low level and distorted. I have to max out the gain to even get a bit of signal
I've tried reflowing all solder joints and checked values / cap orientation for any obvious mistakes but everything seems to be correct.
2N3055 biased to 22.66V

I've taken some measurements from the transistors and it seems that 2 transistors don't match the reference measurements in the guide.
I've replaced TR4 to see if it would make a difference but still get the same readings.



Any suggestions on how to methodically troubleshoot the unit so I can pin point the issue?

Thank you!