Amazed and glad to see this thread is still active 8 years after it was started :) Rock on!

Just logged in to check and its good to see this thread is still going strong after all these years!

That doesn't sound promising. Good luck on the repair and let us know how it goes!

Make sure your soldier joints are clean and your not bridging any other component. Take a picture and post it up here.

I still use the EF5 as my main amp, I think its very underrated on head fi. The first thing I did when I got the amp was to remove all the plexi parts. They just get in the way of tube and op amp rolling, especially the tube. The trick I use to is to actually "roll" the tube in and out of the...

Can't believe this thread is still going after all these years. I'll be adding Cidious's thread on diyaudio.com to the first page:   http://www.diyaudio.com/forums/headphone-systems/285380-headamp-upgrading-lehmann-bcl-clone.html   and this thread about resolving hum on a defective board:  ...

Thanks for the link Cidious!  That page has some good information about changes to six capacitors in the 2013 revision of the board.

  Which vendor did you get the nickel plated board from? It looks to be of very nice quality. Thanks for sharing your builds!

  This would be a great idea! Unfortunately, I don't know if I can devote the time to this right now, I'm moving cross country and starting a new job. Most of the information is present in the thread, I've tried my best to link up all contribution to the first post.   There are several...

  Nice! So which of you have the control of the volume :)

  I have no experience with this mod. Try it and let us know how it turns out. What type of battery are you planning on using to supply the 15V DC?

  Thanks! I've updated the first post with the correct schematics.

Just got my molds done today! Giving InEarz a call tomorrow! 

Mark me down as a maybe. I haven't been to a Chi Uni Fi since the very first one!   I guess I can bring my ATH-W1000x's if no one else is bringing one. 

Unplug all  your sources. Do you still have ground noise with just the power and headphones plugged in? Try another electrical socket also.