The Christiansen "DG" 300B Amplifier Build Thread
Jun 2, 2017 at 7:35 PM Post #646 of 655
wow, that is a complex build. Some of the joints seem to be floating on the semi-pliable glue.

---Could you recommend a glue that stays compliant when used to create a strain relief void?
 
Jun 2, 2017 at 8:14 PM Post #647 of 655
There's nothing floating on glue, all joints that are supposed to be glued are flush. I used Titebond2 and 3 from homedepot and would recommend Titebond2 if i had to do it again (faster cure).

With these flatpacks, everything is position a piece at a time, glue, align the other side, and clamp. It's very easy, a caveman could do it.
ljOvfVGl.jpg


To fill voids (3 sections in each cabinet), i used a mixture of sand and liquid foam.
 
Last edited:
Jan 13, 2019 at 3:40 PM Post #649 of 655
Last Call: The DG300B will be discontinued once the current stock of 15 board sets runs out. I'm spread too thin and will focus on my solid-state designs going forward.

Thanks,

Tom
 
Mar 25, 2019 at 12:35 PM Post #651 of 655
One board set left.

Thanks,

Tom

I am doing a build as well as a couple friends and it certainly looks like a well documented project. :)
 
Feb 14, 2020 at 2:19 PM Post #652 of 655
Another Box. Don’t think I posted this One. Made it for Mike.
birdseye maple and Purple Heart contoured with French Polish finish.
This will be the last for me because I have tinnitus in the hearing. Everything is fuzzy. Sometimes my brain makes it sound like a distant radio station. Weird. Then... I can’t build fine motor skilled things because I have tremors in my hands Probing with a DMM is I’ll advised. The 300B. Isn’t working. I paid a guy in a guitar shop $300 he was lost. So I’m just do-n woodworking. I’m fine with that.
you guys n gals are Great
peace
luke
 

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Feb 14, 2020 at 7:14 PM Post #653 of 655
Another Box. Don’t think I posted this One. Made it for Mike.
birdseye maple and Purple Heart contoured with French Polish finish.
This will be the last for me because I have tinnitus in the hearing. Everything is fuzzy. Sometimes my brain makes it sound like a distant radio station. Weird. Then... I can’t build fine motor skilled things because I have tremors in my hands Probing with a DMM is I’ll advised. The 300B. Isn’t working. I paid a guy in a guitar shop $300 he was lost. So I’m just do-n woodworking. I’m fine with that.
you guys n gals are Great
peace
luke

Sorry to see that you have tinnitus, and about the hand tremors. Getting old sucks. And yeah, stay away from high voltages.

Take care.

Randy
 
Feb 19, 2020 at 1:55 PM Post #654 of 655
Thanks Randy
whatca gonna do....I don’t have the franchise for problems everybody has something

my son is a nuclear engineer and works for Cymer they make lasers or power source for EUV. Chip lithography machines that the parent company AMSL makes. Super cool all the chip makers, Intel Samsung, etc etc buy from ASML because nobody else makes the machines. They are $100M each

I bring this up because if you watch the 10 min clip it’s pretty incredible the 70yr jump from single circuit tube to IC
Extreme Ultraviolet Lithography
 

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