john toon Posted October 28, 2015 Share Posted October 28, 2015 (edited) Thought I'd share my newest project y'all. A couple DIY mono block tube amps to power the khorns. I'm using oak to match the klipsch heritage oiled oak speakers. Should be around 25-30 watts using 6550 and 12ax7 tubes. Still have a long way to go but you can see the idea. I'm still waiting on the transformers to get here and The tops of the amps will eventually be painted black. No idea why the pic loaded upside down. :/ Edited October 28, 2015 by john toon 2 Quote Link to comment Share on other sites More sharing options...
Schu Posted October 28, 2015 Share Posted October 28, 2015 how do you get them to stick to the ceiling? 5 Quote Link to comment Share on other sites More sharing options...
john toon Posted October 28, 2015 Author Share Posted October 28, 2015 Lol, isolation spikes... how do you get them to stick to the ceiling? 3 Quote Link to comment Share on other sites More sharing options...
justinsweber Posted October 28, 2015 Share Posted October 28, 2015 Looks great! Quote Link to comment Share on other sites More sharing options...
Jim Naseum Posted October 29, 2015 Share Posted October 29, 2015 Why only 30 watts? Sent from my SM-T330NU using Tapatalk Quote Link to comment Share on other sites More sharing options...
mikebse2a3 Posted October 29, 2015 Share Posted October 29, 2015 Here you go john toon Very nice. :-) 4 Quote Link to comment Share on other sites More sharing options...
Guest David H Posted October 29, 2015 Share Posted October 29, 2015 Nice work, Dave Quote Link to comment Share on other sites More sharing options...
YK Thom Posted October 29, 2015 Share Posted October 29, 2015 They look fantastic. Were they difficult to build? Quote Link to comment Share on other sites More sharing options...
john toon Posted October 29, 2015 Author Share Posted October 29, 2015 I wanted something rather simple and with in a budget to start with. I found a schematic online to go by and 30 watts is what it was rated as. Why only 30 watts? Sent from my SM-T330NU using Tapatalk Quote Link to comment Share on other sites More sharing options...
john toon Posted October 29, 2015 Author Share Posted October 29, 2015 Thanks mike for adjusting the pic. Not sure why it was upside down. Thom, as far as the build difficulty, they arent complete yet so I'm still determining the dificulty level. So far hasn't been bad but there isn't anything on the inside yet. We'll see once I get to slinging solder. Quote Link to comment Share on other sites More sharing options...
Blvdre Posted October 29, 2015 Share Posted October 29, 2015 Why only 30 watts? Sent from my SM-T330NU using Tapatalk Funny, I was thinking that's 25+ Watts too many. Quote Link to comment Share on other sites More sharing options...
swapface Posted October 30, 2015 Share Posted October 30, 2015 Nice work, tubes are the way to go! Quote Link to comment Share on other sites More sharing options...
john toon Posted February 5, 2016 Author Share Posted February 5, 2016 Ok, its been a little while but I finally have the amps finished and all the bugs worked out. The build wasn't too difficult. I also built a preamp for them but it will have to be phono only as it is a little too hot with any other input. They do sound fantastic, they are dead quiet with my ear right up to the horns. I'd recommend the build to anyone tech savy. There is a kit with all the parts supplied but I went the DIY way and sourced all the parts myself and built the cabinets. 1 Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted February 6, 2016 Share Posted February 6, 2016 Those are some beautiful amps! The wood finish and blue parts really make them standout. 1 Quote Link to comment Share on other sites More sharing options...
The Dude Posted February 6, 2016 Share Posted February 6, 2016 Is this based off of the odd watt kit? I have been looking at that, if you wouldn't mind sharing your BOM we would greatly appreciate it. Maybe a schematic. Quote Link to comment Share on other sites More sharing options...
john toon Posted February 6, 2016 Author Share Posted February 6, 2016 yep this sure is the oddwatt design. here is a link to the schematic I used. cost about 500-600 bucks to build both amps and about 6 weeks wait time for the transformers from edcor. I may try to add in a bluetooth module in the premap section. The beauty of DIY... I sourced most of the parts from tubedepot.com and ebay. http://diyaudioprojects.com/Tubes/5751-KT88-Tube-Amp-Kit/ 1 Quote Link to comment Share on other sites More sharing options...
Thaddeus Smith Posted February 6, 2016 Share Posted February 6, 2016 Why only 30 watts? Sent from my SM-T330NU using Tapatalk It's more than the pcats. Quote Link to comment Share on other sites More sharing options...
CindyJarvis Posted February 6, 2016 Share Posted February 6, 2016 They are only 30 watts because they are Class A amplifiers. The self inverting output stage only works for class A operation is my thought. -Cindy Quote Link to comment Share on other sites More sharing options...
Zim. Posted February 6, 2016 Share Posted February 6, 2016 x Quote Link to comment Share on other sites More sharing options...
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