donsachs
Responses from donsachs
| 300b lovers @gavin1977 No, sorry. The 2A3 is 2.5 V filament and 300V plate max. The 300b is 5V and the plates are at about 395 V in this amp. Not ever going to happen. What you have to realize is the 300b is a better tube for this purpose and people wh... | |
| 300b lovers To simplify.. All tubes have distortion. The higher orders are what are like fingernails on a blackboard to your ear. DHTs have lower levels of higher order distortion than other types of tubes, and good indirectly heated octals like the 6SN7 and ... | |
| 300b lovers This is getting dangerously close to an infommercial😉 Really, I have enjoyed the thread and never expected it to have this sort of life. I just received the final version of the preamp output transformers from Dave Geren at Cinemag yesterday a... | |
| 300b lovers @atmasphere So many paths to audio nirvana. So many tubes, so little time:) | |
| 300b lovers To distill much of the above. What struck me (well, Clayton and folks at Spatial Audio as well) with the first build of the circuit in a stereo box with a CCS on the plate of each driver tube was the purity of the sound. It didn't have a sound p... | |
| 300b lovers As I said, there are subtle complexities in what appears to be a really simple circuit when you first look at the schematic. I am sure the symmetric Reichert sounds great, but I am sure it cannot touch the current build due to all the improvement... | |
| 300b lovers Yes I am well aware of the debate and tradeoffs in interstage coupling in amps, but I am talking about the output transformer in a preamp here. It has numerous advantages over cap coupled output provided the transformer quality is superb and the t... | |
| 300b lovers I will also add that for the preamp, I built one with off the shelf Lundahl transformers and then again, I got Dave Geren at Cinemag to wind me the best small output transformer he could after I showed him the circuit. Better....... Very trans... | |
| 300b lovers As I am retiring from constant production of tube gear I wanted to see what was possible. How good could it sound? Lynn got me to look at the symmertic Reichert circuit and it looked interesting and off I went. Then he showed me the Raven pream... | |
| 300b lovers Actually Lynn said if I built the Symmetric Reichert it would be the best amp I had ever heard. I like a challenge. Then I decided if I was going to build it we would figure out the best way. So we ditched the driver section and came up with a... | |
| 300b lovers @pindac Hi, the amps are not even released to the public yet. Perhaps when they are in full commercial production someone can take one to a local audio group. I agree that is a great way to let more people here them. One step at a time.... ... | |
| 300b lovers @whitestix When I "voice" amps and preamps I am always trying to make them sound like they are not there. I have a Lampizator Pacific DAC so the front end is killer. I am always trying to have the amps vanish. That is the goal. They should j... | |
| 300b lovers @whitestix I make a change and live with it for at least a few days or a week before deciding. Yes, the film caps have to run in. With this amp project I built a stereo version first because I had a few of the Kootenay amp cherry cases laying ... | |
| 300b lovers ..and what Lynn is not saying is that these amps address these problems. Without going into proprietary detail, I will say that there are two separate power supplies in each amp and that every tube plate in the amp has a healthy inductance betwe... | |
| 300b lovers I run 46 tubes in my Lampi Pacific DAC and they are wonderful. You can still find some. The 45 is now really scarce unless you want to spend a fortune for new production. I have some 26 I collected for a potential preamp project. So many tub... |