atmasphere

Responses from atmasphere

Weird question re: balanced connection
If you are looking to monostrap a tube amplifier, the procedure is different from that of a transistor amp.This procedure is outlined in the Dynaco Stereo 70 manual FWIW.The amps to be monostrapped must be absolutely identical! The same signal mus... 
Opinions on ICL, Inrush Current Limiter
CILs can be very helpful! They help prevent switches from being damaged during turn-on as well as other parts. They were not always available, so on older units of 40-50 years and more you won't see them. But on newer units the designer is missing... 
Who makes the highest quality tube gear?
best designed and constructed technically, personal sound preferences asideWhat I get from this is something like, 'tube stuff that is of sound design, built well, meant to last and sounds good at the same time'.I can think of a few that sound goo... 
Does the volume control effect sound quality?
We've done a lot of mods on Dynaco equipment over the years in fact that is how we got started back in the 70s. The volume control on the older PAS-3 was always a problem. Eventually we had some custom switches made up so we could install a steppe... 
Question for technicians
I work on vintage electronics a lot. The better stuff frequently have 'J pots' in them- Allen Bradley J-Style potentiometers. They are really well sealed. If they get noisy, the technique above actually works fairly well on them unless they are re... 
Tube amplifiers and interstage transformers
I don't know why the laws of human hearing are'nt appreciated more and respected.A lot of what we know about human hearing rules has only been worked out in the last 35- 40 years. But by 50 years ago, most of the understanding of how to analyze au... 
Cartridge loading
Larryi, Jonathan Carr and I are talking about the same thing.The 'ultrasonic' frequency can be in the MHz. Sometimes its easier to think of that as RF which is why I put it that way. 
Tube amplifiers and interstage transformers
Charles1dad, something that has puzzled me for a long time is the also 'common argument' that triodes are the most linear form of amplification known to man, yet they have more distortion??The fact is that they don't. Try putting a transistor in a... 
Question for technicians
If you can't get to the switch itself then the cleaner is likely not going to do the job by trying to get it to go through the shaft bushing for the switch!Your best option at this point is actually pretty simple- operate the switch vigorously to ... 
Cartridge loading
This has been covered elsewhere but seems to need repetition. Most Low Output Moving Coil cartridges are unaffected directly by the load, other than the output that have if the load value is too low. But we hear differences at times- so the load i... 
Tube amplifiers and interstage transformers
Based on theory,measurements and the viewpoint of designers of solid state components,tubes should`nt even be a consideration for best sound aspirations.They`re too colored,too much distortion,outdated and measure poorly. Heaven forbid those compt... 
Tube amplifiers and interstage transformers
I've not found that transformers contribute to transparency. IME they always detract from it. Bandwidth aside that has been the main reason I avoid them if possible.Distortion is however a main reason people will often prefer transformers, as thes... 
Sick and tired of hum-please read
Invstbiker, if I were you I would start by disconnecting the preamp from the amp and see if the amp hums on its own.300bs don't make a lot of power, so they have to be on efficient speakers. For this reason, they have to be hum-free. If, not, I wo... 
RCA to balanced
True, but then you are dealing with the limitations imposed by the transformer. 
Cables for low power amps and Horns?
Purist Audio Design would be another. I've used them to very good effect.