Another KT-88

cryo · 29th July 2008, 03:44 AM

I promised some time ago to post a final finished picture and also a shot of the undercarriage. I am a bit nervous showing the underside of my amp, kind of like dropping my pants on stage.

But I can take positive criticism. This is my version of Michael's KT-88 single ended circuit. I got a lot of help from people on this forum, and I thank them from my heart.

And now on to the next project........

cryo · 29th July 2008, 03:45 AM

And the undercarriage......

despotic931 · 29th July 2008, 03:55 AM

Beautiful!

How's it sound?

What's the power output?

And, what wood is that base made of?

-Justin

jimmyd53 · 29th July 2008, 04:32 AM

I second that. Very nice work.
James

Rodmunch · 29th July 2008, 05:20 AM

Absolutely gorgeous. What does something like that cost to build? How's it sound?

Hearinspace · 29th July 2008, 09:05 AM

I triple that. Beautiful from both sides! Love the clean layout and wiring, top-plate cutouts , the whole thing . . . . .and that base is gorgeous!

Simpleton · 29th July 2008, 09:18 AM

Trully a work of art!

ymwong · 29th July 2008, 09:44 AM

Wow, love that sloped base. And the finish! 1st class.

jrn77478 · 29th July 2008, 02:01 PM

My compliments as well. Very nice work, especially the chassis design. I may have to... erm, borrow that.

cryo · 29th July 2008, 02:40 PM

Thanks for the responses, my head is sufficiently swollen.

It sounds great. It only puts out a few watts, but I have two-way bookshelves that it pushes very nicely. Plenty of power for a bedroom, office, etc. I now understand the leanings toward single-ended sound.

The base is bubinga, 45 degree miters on the ends, with about a 15 degree compound angle to get the sloped sides. That took a bit of tweaking, and I set up a jig on my disk sander to get it just right. After a few dry runs on pine, I finally did it in the expensive bubinga.

I have tried a lot of fancy finishes. But in the end I really like Deft's spray on polyurethane. You have to have a clean place to spray, you can't rub out any imperfections. But it goes on nice and you are done.

It doesn't show on the pic, but there is a perforated aluminum sheet inset into the bottom to keep fingers away from 400 volts DC.

29th July 2008, 09:18 AM	#7
Simpleton diyAudio Member Join Date: Jan 2005 Location: Lisboa	Trully a work of art! __________________ "There's something organic about a happy cloud of electrons" - Neutron Bob

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read

29th July 2008, 03:55 AM	#3
despotic931 diyAudio Member Join Date: Jan 2008	Beautiful! How's it sound? What's the power output? And, what wood is that base made of? -Justin

29th July 2008, 04:32 AM	#4
jimmyd53 diyAudio Member Join Date: Jan 2006 Location: EUGENE, OREGON	I second that. Very nice work. James

29th July 2008, 05:20 AM	#5
Rodmunch diyAudio Member Join Date: Jun 2008	Absolutely gorgeous. What does something like that cost to build? How's it sound?

29th July 2008, 09:05 AM	#6
Hearinspace diyAudio Member Join Date: Jun 2008	I triple that. Beautiful from both sides! Love the clean layout and wiring, top-plate cutouts , the whole thing . . . . .and that base is gorgeous!

29th July 2008, 09:44 AM	#8
ymwong diyAudio Member Join Date: Jan 2003 Location: california	Wow, love that sloped base. And the finish! 1st class.

29th July 2008, 02:01 PM	#9
jrn77478 diyAudio Member Join Date: Jun 2008	My compliments as well. Very nice work, especially the chassis design. I may have to... erm, borrow that.

29th July 2008, 02:40 PM	#10
cryo diyAudio Member Join Date: Nov 2004 Location: CA	Thanks for the responses, my head is sufficiently swollen. It sounds great. It only puts out a few watts, but I have two-way bookshelves that it pushes very nicely. Plenty of power for a bedroom, office, etc. I now understand the leanings toward single-ended sound. The base is bubinga, 45 degree miters on the ends, with about a 15 degree compound angle to get the sloped sides. That took a bit of tweaking, and I set up a jig on my disk sander to get it just right. After a few dry runs on pine, I finally did it in the expensive bubinga. I have tried a lot of fancy finishes. But in the end I really like Deft's spray on polyurethane. You have to have a clean place to spray, you can't rub out any imperfections. But it goes on nice and you are done. It doesn't show on the pic, but there is a perforated aluminum sheet inset into the bottom to keep fingers away from 400 volts DC.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)