November 10, 2025 at 7:14 PM
Started testing with the EF36 (I'm lazy - it fits in a relay socket). Tubes covered in black paint don't glow much ;)
#ElectronicsDIY #Tubeaudio
#ElectronicsDIY #Tubeaudio
September 27, 2025 at 9:11 PM
Started testing with the EF36 (I'm lazy - it fits in a relay socket). Tubes covered in black paint don't glow much ;)
#ElectronicsDIY #Tubeaudio
#ElectronicsDIY #Tubeaudio
Built a test version of the input stage/phase splitter, to figure out why it clips so fast...
#TubeAudio #DIYelectronics
#TubeAudio #DIYelectronics
June 9, 2025 at 2:29 PM
Built a test version of the input stage/phase splitter, to figure out why it clips so fast...
#TubeAudio #DIYelectronics
#TubeAudio #DIYelectronics
The second prototype - now enclosed. Soon I'll know if everything works. The boards work individually, but haven't been tested together 🙈
#TubeAudio #ElectronicsDIY
#TubeAudio #ElectronicsDIY
November 22, 2025 at 5:57 PM
The second prototype - now enclosed. Soon I'll know if everything works. The boards work individually, but haven't been tested together 🙈
#TubeAudio #ElectronicsDIY
#TubeAudio #ElectronicsDIY
Shifting gears - remember that chassis plate I drew up in CAD and did the Send-cut-send? Here’s my test fitting of the amp components. Made a few measurement errors - corrected and sent final. #tubeaudio #diy #busyhands
May 15, 2026 at 5:21 PM
Shifting gears - remember that chassis plate I drew up in CAD and did the Send-cut-send? Here’s my test fitting of the amp components. Made a few measurement errors - corrected and sent final. #tubeaudio #diy #busyhands
Tonight's project. Heater supplies for 300B tubes. Regulated using "ultra low noise" LT3045 regulator ICs.
#ElectronicsDIY #Tubeaudio
#ElectronicsDIY #Tubeaudio
January 12, 2025 at 11:02 PM
Tonight's project. Heater supplies for 300B tubes. Regulated using "ultra low noise" LT3045 regulator ICs.
#ElectronicsDIY #Tubeaudio
#ElectronicsDIY #Tubeaudio
Installed the last parts. Now I have to take it home to finish the software, and test the hardware...
#TubeAudio #ElectronicsDIY
#TubeAudio #ElectronicsDIY
May 24, 2025 at 10:42 PM
Installed the last parts. Now I have to take it home to finish the software, and test the hardware...
#TubeAudio #ElectronicsDIY
#TubeAudio #ElectronicsDIY
Giving the Audible Illusions pre a run for its money with some oboe! First stereo press of Yusef Lateef’s “Live At Pep’s”, a great towering giant of an album. #JazzSky #HiFi #tubeaudio
August 9, 2025 at 4:35 AM
Giving the Audible Illusions pre a run for its money with some oboe! First stereo press of Yusef Lateef’s “Live At Pep’s”, a great towering giant of an album. #JazzSky #HiFi #tubeaudio
Getting ready for the first power up of a circuit running on 600VAC, is always a bit scary...
Nothing went bang :)
#TubeAudio #DIYelectronics
Nothing went bang :)
#TubeAudio #DIYelectronics
April 26, 2025 at 12:24 AM
Getting ready for the first power up of a circuit running on 600VAC, is always a bit scary...
Nothing went bang :)
#TubeAudio #DIYelectronics
Nothing went bang :)
#TubeAudio #DIYelectronics
Revision B coming...
First version of the board had a couple of oopsies, so I decided to make a revised board, before completing the project.
#DIY #TubeAudio
First version of the board had a couple of oopsies, so I decided to make a revised board, before completing the project.
#DIY #TubeAudio
July 20, 2025 at 9:27 PM
Revision B coming...
First version of the board had a couple of oopsies, so I decided to make a revised board, before completing the project.
#DIY #TubeAudio
First version of the board had a couple of oopsies, so I decided to make a revised board, before completing the project.
#DIY #TubeAudio
Got the schematic for this project drawn, as the parts are starting to assemble themselves...
It's point to point wired - it's only the heater supply from the previous post, that's on a PCB. Does it work? Time will tell ;)
#TubeAudio
It's point to point wired - it's only the heater supply from the previous post, that's on a PCB. Does it work? Time will tell ;)
#TubeAudio
April 6, 2025 at 12:18 AM
Got the schematic for this project drawn, as the parts are starting to assemble themselves...
It's point to point wired - it's only the heater supply from the previous post, that's on a PCB. Does it work? Time will tell ;)
#TubeAudio
It's point to point wired - it's only the heater supply from the previous post, that's on a PCB. Does it work? Time will tell ;)
#TubeAudio
Yet another amp project... I work on a lot of projects simultaneously, because I always run into a lack of parts, or something I have to look into. This is an SE tube power amp. The power transformer isn't fitted yet, as it weighs a ton...
#ElectronicsDIY #Tubeaudio
#ElectronicsDIY #Tubeaudio
July 26, 2025 at 10:00 PM
Yet another amp project... I work on a lot of projects simultaneously, because I always run into a lack of parts, or something I have to look into. This is an SE tube power amp. The power transformer isn't fitted yet, as it weighs a ton...
#ElectronicsDIY #Tubeaudio
#ElectronicsDIY #Tubeaudio
youtu.be/_R_mC0xpqpc?...
#audionote #audiophile #diyaudio #hifi #openbaffle #bluesound #tubeaudio #fostex #speakers #supravox #qobuz #300b
#audionote #audiophile #diyaudio #hifi #openbaffle #bluesound #tubeaudio #fostex #speakers #supravox #qobuz #300b
Jacintha, Light my Fire, Open baffle speakers
#audionote #audiophile #diyaudio #hifi #openbaffle #bluesound #tubeaudio #fostex #speakers #supravox #qobuz #300b
youtu.be
February 10, 2024 at 6:09 PM
The new operating points of the input stage, did improve matters - slightly...
4% THD at 1W output isn't exactly great. But compared to 0.14W at 1% THD it is an improvement. Distortion halved in round numbers. So it's not just the input stage that was causing the issues.
#TubeAudio #ElectronicsDIY
4% THD at 1W output isn't exactly great. But compared to 0.14W at 1% THD it is an improvement. Distortion halved in round numbers. So it's not just the input stage that was causing the issues.
#TubeAudio #ElectronicsDIY
June 21, 2025 at 9:53 PM
The new operating points of the input stage, did improve matters - slightly...
4% THD at 1W output isn't exactly great. But compared to 0.14W at 1% THD it is an improvement. Distortion halved in round numbers. So it's not just the input stage that was causing the issues.
#TubeAudio #ElectronicsDIY
4% THD at 1W output isn't exactly great. But compared to 0.14W at 1% THD it is an improvement. Distortion halved in round numbers. So it's not just the input stage that was causing the issues.
#TubeAudio #ElectronicsDIY
Transformers (and covers) installed...
It's going to be an all metal tube amp. 6SF5, 6J5, 1619 and 5T4.
#TubeAudio
It's going to be an all metal tube amp. 6SF5, 6J5, 1619 and 5T4.
#TubeAudio
March 30, 2025 at 9:53 PM
Transformers (and covers) installed...
It's going to be an all metal tube amp. 6SF5, 6J5, 1619 and 5T4.
#TubeAudio
It's going to be an all metal tube amp. 6SF5, 6J5, 1619 and 5T4.
#TubeAudio
Tube experiment time again. This time a driver stage for an SE power amp. I'm measuring at 65Vp out. Again spice did not predict the best operating point... The lowest THD I saw was 1.17%, but it looks nicer at 1.57% (pictured). The tube is a 6EA7/6EM7 TV vertical tube. #TubeAudio #DIY
July 12, 2025 at 9:43 PM
Tube experiment time again. This time a driver stage for an SE power amp. I'm measuring at 65Vp out. Again spice did not predict the best operating point... The lowest THD I saw was 1.17%, but it looks nicer at 1.57% (pictured). The tube is a 6EA7/6EM7 TV vertical tube. #TubeAudio #DIY
Time for some weekend DIY... Another amp project coming along. Some parts near the edge of the board, need a bit of cooling. So I have a small heatsink for that - that I forgot to add the space for on the top plate 🤬
That's what happens when you work on projects on and off for months ;)
#TubeAudio
That's what happens when you work on projects on and off for months ;)
#TubeAudio
March 30, 2025 at 5:52 PM
Time for some weekend DIY... Another amp project coming along. Some parts near the edge of the board, need a bit of cooling. So I have a small heatsink for that - that I forgot to add the space for on the top plate 🤬
That's what happens when you work on projects on and off for months ;)
#TubeAudio
That's what happens when you work on projects on and off for months ;)
#TubeAudio
Neue Phase bei Audio Research Corp.: Valerio Cora gibt operative Führungsaufgaben ab, David Gordon kehrt als Brand Ambassador zurück. #AudioResearch #HiFi #HighEndAudio #TubeAudio www.sempre-audio.at/audio-resear...
Audio Research Corp. stellt sich neu auf | sempre-audio.at
Audio Research Corp. ordnet die Führung neu: Valerio Cora zieht sich aus operativem Geschäft zurück, David Gordon kehrt als Brand Ambassador zur Marke zurück.
www.sempre-audio.at
July 9, 2026 at 11:24 AM
Neue Phase bei Audio Research Corp.: Valerio Cora gibt operative Führungsaufgaben ab, David Gordon kehrt als Brand Ambassador zurück. #AudioResearch #HiFi #HighEndAudio #TubeAudio www.sempre-audio.at/audio-resear...
Spouse is finally home tonight so I gotta play some loud zappa before they’re back! #hifi #vinyl #tubeaudio #analogaudio #vintagehifi
July 2, 2023 at 10:32 PM
Spouse is finally home tonight so I gotta play some loud zappa before they’re back! #hifi #vinyl #tubeaudio #analogaudio #vintagehifi
always a good time with Thad & Mel #hifi #tubeaudio #analog
August 10, 2023 at 4:05 AM
always a good time with Thad & Mel #hifi #tubeaudio #analog
youtu.be/RKk0jXH14HI?...
DIY Open Baffle Speakers
DIY Open Baffle Speakers
#openbafflespeakers #diyaudio #reimyodap777 #hifi #audiophile #tubeaudio #supravox #wiimultra
YouTube video by Audio Anarchy
youtu.be
June 7, 2026 at 5:24 PM
youtu.be/RKk0jXH14HI?...
DIY Open Baffle Speakers
DIY Open Baffle Speakers
