alexberger
Responses from alexberger
| 300b lovers Dear Don, I'm also going to make an independent power supply for the driver and input stages. Now I use one 5u4g rectifier for both channel tubes 2x 300B 2x 6f6 2x 6sn7. The total current is 180mA. Is to much for one 5u4g. Now I have very big B+ ... | |
| 300b lovers Dear Lynn, Thank you for convincing me to use an interstage transformer for driving 300B in my SET. I installed Hashimoto A305 into my amp. I put 82K Ohm Kiwame load resistors.. First I measured the 6f6 driver stage with an oscilloscope. There is ... | |
| 300b lovers I upgraded my DACT VC by using constant serial resistors and "half" of DACT itself like a shunt resistor. I used Shinkoh 0.5W resistors before and now I use AN Silver 2W resistors. | |
| 300b lovers Hi @donsachs @lynn_olson , I have 300B SET with 6f6 driver in triode mode. I did 2nd harmonic distortion calculation using 3 point method and 6f6 plate characteristic graph. So with RC coupling that I have right now I get more than 2% dist... | |
| 300b lovers I have a question to @lynn_olson I have 300B SET 6sn7 input, 6f6g in triod driver with RC coupling. One friend of mine who reads DIY forums and tries all this thing by himself, recommended me to enlarge cathode capacitors up to 100,000uF in input... | |
| 300b lovers Hi @charles1dad , I don't have practical experience. But theoretically 300B is winn-winn vs 845. 1. Output transformer has wider bandwidth. 2. Easy to drive. Driver tube and driver transformer. 3. Easy to build a high quality PS for 400v vs 10... | |
| 300b lovers The output transformer for 845 SET should be at least 10K Ohm. And it can't be as wide a bandwidth as a 3K output transformer for 300B. Another issue is that driving 845 tubes is much more difficult. A well designed 845 SET will always be inferio... | |
| 300b lovers Hi @lynn_olson , Thank you for very interesting information. Do you have any data high order distortion in 6F6 and 6V6 in a thiode mode? A friend of mine use 6BX7 double triode for driving. Is there any information about 6BX7? I heard 2 SET ... | |
| New Vinyl Jazz and Classical Reissues Charles Mingus – The Clown - "Reincarnation Of A Lovebird" - Speakers Corner Records https://youtu.be/W5kHvi5CMhM | |
| New Vinyl Jazz and Classical Reissues The Charlie Mingus Jazz Workshop – Pithecanthropus Erectus - Speakers Corner Records https://youtu.be/AwjkvFKBOYY | |
| New Vinyl Jazz and Classical Reissues Charles Mingus – Oh Yeah - "Hog Callin' Blues" - Speakers Corner Records https://youtu.be/6ILqxUOQ9og | |
| Top two most important sound qualities Tonality and ability to produce individual rhythm pattern of each instrument. | |
| Blue Note Tone Poet Series Chet Baker – Sings And Plays With Bud Shank, Russ Freeman And Strings - "Someone To Watch Over Me" https://youtu.be/BCIP2nNmIZE "Let's Get Lost" https://youtu.be/dqYFXCqpTQo "Just Friends" https://youtu.be/Dezzwk3cUbM | |
| Blue Note Tone Poet Series Gil Evans Orchestra – Great Jazz Standards - "Davenport Blues" https://youtu.be/9HJvYIMRHjQ | |
| Classical Vinyl Series Jackie McLean – Destination... Out! - "Love And Hate" https://youtu.be/ox5mRov_gMs |