开云体育

After looking at my 535A this a.m., you are correct. There are tube lineups just as you say in my scope AND CA plugin. However, I don't recall seeing many 6AK5, 6AU6, or 12AU7 tubes from the

Right on. Same for the Japanese paying mega bucks for the old Western Electric theatre amps. Audio is rife with "the emperor's new clothes" syndrome, and the brain plays a lot of tricks on

europachris@... wrote: I'm not really sure what you mean by "small signal positions" . . . do you mean the first stage of a sensitive amplifier? For letter series tube amplifiers, the first

It isn't human dynamic range or bandwidth that creates this demand for certain devices/brands Dean; it's a tone; a certain character of sound quality. There is no technical definition for this

Well hang on guys. I'm with you to a point. My original response was mainly ridiculing the hype and component pricing that is the consequence of that hype, within the audio community. I am not an

Relax Steve. A bit of humor, venting and off-topic chat is something fairly foreign to a group of mostly serious stodgy engineer/techies (sorry guys) that are interested in oscilloscopes. This sort

Ah yes, audio mumbo-jumbo. Before everyone jumps on my case, I do a fair amount of audio design and I DO know what i am talking about. Most people forget there is a way to get very close to 'what

be I would respectfully suggest we return to our respective fields of expertise and experience and the central topic of this forum, Tek 'scopes and related items. Enough misinformation has already

"The ear is a funny thing" very true but we do not hear with our ears we hear with our brains and are therefore subject to all the follies of the mind IE we tell ourselves what we want believe and we

OOOhhhh, this has been the cause of some VERY hot debates on the audio newsgroups. I certainly won't get into it here. I would LOVE to be the participant of a double blind, being the engineer at

Dean, not to get into a big debate here, but there are lots of things going on that test gear cannot measure. I agree with you, as I am an engineer, and I say "speak with data". But, I've listened

I am with Dean on this one. There is a special process called "double-blind testing" where these sorts of claims can be debunked. If I understand it right, double-blind testing amounts to the

Methinks the tops of my boots are needing a few more inches to clear the effluent which is building. Ain't no way the human sense of hearing has the bandwidth or the dynamic range that even modest

Excuse my ignorance, but what is so special about the 12AX7s compared to any of the other twin triodes?. I have been swaping them around for years in various pieces of equipment without much

europachris@... writes: . tubes I have never read about this in the electronics literature, but look up the phenomenon of "superwaves" in the field of oceanography. In perfectly normal

Ahhh, a topic that I'm well versed in. I'm an "audio nut", but am totally not into $100 cable, stones, magic dots, etc. I'm into the DIY tubes and speakers end of it. While there IS a lot of hype,

The vacuum tube audio guys have gone absolutely "stupid" over this sort of thing. This is the same group that will pay $100 per foot for special oxygen-free speaker cable, $50 for special medical

Just a note to those who may have some 12AX7s in their equipment (e.g., 549 has 2) or junk box: Check your stuff for Telefunken tubes. There are some strange people out there who pay big bucks

I hate to disagree, but the Navy Chief had a good point. The military, as you know, tends to "go by the book". The book in this case is a Tek manual and it specifies timemark generators. But more

Sometimes, time-mark generators are overrated. The advantage of them is that they make vertical marks for easily matching marks to graticule lines. But if you need faster timing checks, you don't