Beginner's Build Guide: Pearl II

[mannytheseacow]

Only one channel is currently wired up to the power supply while I work on it.
I posted a photo of the power supply, too, which I was incorrect in my earlier post- it puts out 29v.

 

[6L6]

Ok. That’s not going to work. Don’t plug it in again. I’ll have a PSU solution for you shortly.

 

[mannytheseacow]

I appreciate your help, 6L6.
One thing I am confused about is that if it is a power supply issue, why was it working just fine prior to changing R14 for more gain? I probably listened to 7-10 LPs with before deciding to increase the output.

 

[6L6]

It wasn’t working properly.

You may have been getting something, but with about half normal supply voltage and ground not really there and the circuit just floating around, it was spring loaded to fail messily.

 

[mannytheseacow]

Ok. While maybe not the news I wanted but very helpful nonetheless. Before wasting any more people’s time here then, I will build Wayne’s PSU properly and go from there. Thanks again.

 

[6L6]

Check PM

 

[Dennis Hui]

@mannytheseacow , the sample PS in the original Pearl 2 article has a missing ground connection. This one from 6L6's build thread has the correction:

https://i198.photobucket.com/albums/aa276/aeroplane_album/Pearl2PSU.jpg

Hopefully you can resolve this issue soon.