atmasphere
Responses from atmasphere
| SUT Interconnects 20pf/foot is a practical value for a cable. Mogami makes a console cable that specs in this area. Since transformers can receive either a single-ended signal or balanced, you could run a balanced connection from your arm to the SUT and thus obviat... | |
| Any Technics 1200GR Owners With Arm Upgrades? Nice. Thanks for the feedback! Anyone else have ideas or experience on this? I like doing mechanical and car/engine type work...but I am very intimated messing with setting up Turntables. I designed an armboard to replace the stock arm locatio... | |
| Are cutting lathes VTA constant across the board? Or do different mastering engineers have preferences on the angle of the cutting head? If they have differences, isn’t fine tuning VTA on you turn table just going to run you in circles with each different lol you play? The cutter head has a st... | |
| Want to make sure I have the correct settings for my phono pre-amp Cartridge loading is for the benefit of the phono section not the cartridge, which does not care a bit how you load it unless you get too low- at which point its output will decrease. FWIW a LOMC cartridge cannot 'ring' (distort) at audio frequenc... | |
| SUT Interconnects Could you please explain why it is important to have low capacitance cable before the transformer. how does that affect the transformer ? The inductance of the cartridge and transformer in parallel with the capacitance of the tonearm cable caus... | |
| Grounding cable gauge size I also had a residual noise when I used your Atmashere amps. It is inherent in tube amplifier designs. With all due respect, you really need to try this type of grounding before you comment. It would probably surprise you, as it did me. Its tr... | |
| Does anyone manufacture an alternative Linn Sondek belt pulley ? If you are needing an idler pulley and you have the old one, whether a turntable or tape machine, you can get it rebuilt by Russell Industries for a reasonable price. For many years it was only $35.00; I got a capstan pinch roller rebuilt there fo... | |
| SUT Interconnects I always though it was more critical to keep capacitance low AFTER the SUT, rather than BEFORE the SUT, becasue of the after-SUT’s capacitative load supposedly "reflecting back times the sqaure of the turns ratio" (i.e. the opposite of what happe... | |
| Peeking inside a Carver Crimson 275 Tube Amplifier It's a video of a Suntan cap blowing up. Those are electrolytics, quite different from what is used for coupling caps in tube gear! | |
| Push Pull KT vs DHT SET vs DHT PP FWIW we built a few prototype amps using the 2A3 in push-pull. You get about 16 watts in class A. There are a lot of nuances that affect how tube amps sound. If the amp combines single-ended and push-pull, like most textbook circuit so the 1950s,... | |
| Heat in class A equipment It depends entirely on how well the amplifier is ventilated. Heat also will work its way from the heatsinks through the chassis so over time the entire amp will get warmer. | |
| Grounding cable gauge size Ok, but my ears can hear the improvement and my brain can appreciate it. If it can't be measured it must not be? It reminds me of the age-old topic of power cords not making a difference. I'm not contesting that. And I can easily measure why a... | |
| Turntable Hum I'll try your suggestions, the only time the hum goes away is when the phonostage is out of the loop 🤷♂️ If nothing is connected to the input of the phono preamp, does it still hum? If yes, based on the statement above the problem is the phono... | |
| Amplifier stability with very low impedance, high efficiency mid/tweeter section??? This is simply for a speaker I'm thinking of making myself, not for an existing product. Once I model it I'll have a better idea of the impedance curve. @poseidon1500 To prevent the array from being low impedance you can put the midrange dri... | |
| SET Shootout China VS The USA Shugang has liscened out its facilities to Psvane and Lin Lai to make their tubes INSIDE Shugaung’s manufacturing tool shop. FWIW the Shugang plant that made their 6SN7s burned to the ground about 2 1/2 years ago (so that tube has gotten hard t... |