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#121
Posted to rec.audio.tubes
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Signal to noise ratio, when recording.
"Patrick Turner" wrote in message ... : : : Rudy wrote: : : "Patrick Turner" wrote in message : ... : : : : : : Eeyore wrote: : : : : Patrick Turner wrote: : : : : Having gain adjustment in stage one following the step up tranny : : could be a good idea, perhaps a gain control with a pot in its shunt : NFB : : network would do. : : : : Today's typical high performance mic amps have a single very linear : 'gain cell' : : with voltage gain usually set by a single resistor. : : : : You simply can't come close to their performance with tubes. : : : : What is the URL for a schematic? : : : : Patrick Turner. : : : : Graham : : an example would be the THAT 1510, see he : http://www.thatcorp.com/1500desc.html : only USD 2.05 (if ya get a 1000 : : may be a good idea to build as a reference mic amp. : Rudy : : Thanks Rudy, I've saved the files for when I may need them. : : Patrick Turner. with a +/- 18V supply and a 2K load, it should do about 11Vrms out at unity gain, noise is 124 dB down with 20 dB gain, max 1.1 Vrms in, -121 dB with 40 dB gain, max 110 mVrms in, -110 dB with 60 dB gain, max 11 mVrms in, -98 dB none too shabby :-) (in practise, you'll set your 0dB ref level somewhat below the 11Vrms obtainable, so real life numbers will be somewhat worse) Rudy |
#122
Posted to rec.audio.tubes
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PUKE will **** HIMSELF
"Ian Bell" wrote in message ... Iain Churches wrote: VUs were not really popular in the UK or Europe. Some tape mchines had them just for alignment purposes, but their interpretation for a musical signal was much too variable. In addition, with the advent of multitrack,. the visual monitoring of eight or more analogue meters proved tricky. That's why bar meters became so popular. Some companies (IIRC Surrey Electronics in the UK was one) made add-on meter units, 8,16,24,32 track indicators which could be fitted to the console overbridge. Our memories obviously differ. Certainly as far as the UK is concerned, VUs were standard in recording studios in the hey day of multitrack tape. When I was at Neve, 99% of all our consoles were fitted with VUs. The only exceptions I remember were the BBC and Pete Townshend. We might fit a bar graph meter on a stereo out but that was about it. Ian Just had an e-mail from a pal in the UK who states that Pete Townsend had a Trident desk. I wonder, was that before, after, or as well as the Neve? I wonder what Neve's market share is these days? Studer and Lawo seem ubiquitous and both have a very solid reputation. Iain |
#123
Posted to rec.audio.tubes
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PUKE will **** HIMSELF
Iain Churches wrote: I wonder what Neve's market share is these days? Of what ? Studer and Lawo seem ubiquitous and both have a very solid reputation. Never seen any of either. I'd never even heard of Lawo until your post. Where do you come across these ? Graham |
#124
Posted to rec.audio.tubes
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PUKE will **** HIMSELF
Iain Churches wrote:
"Ian Bell" wrote in message ... Iain Churches wrote: VUs were not really popular in the UK or Europe. Some tape machines had them just for alignment purposes, but their interpretation for a musical signal was much too variable. In addition, with the advent of multitrack,. the visual monitoring of eight or more analogue meters proved tricky. That's why bar meters became so popular. Some companies (IIRC Surrey Electronics in the UK was one) made add-on meter units, 8,16,24,32 track indicators which could be fitted to the console overbridge. Our memories obviously differ. Certainly as far as the UK is concerned, VUs were standard in recording studios in the hey day of multitrack tape. When I was at Neve, 99% of all our consoles were fitted with VUs. The only exceptions I remember were the BBC and Pete Townshend. We might fit a bar graph meter on a stereo out but that was about it. The Neve in Decca studio II was fitted with Decca type PPMs, to bring compatibility with the other consoles. The API had VUs, with the kind of meterbridge I mentioned. Both the old and the new consoles in studio III had PPMs,as did all cutting and dubbing rooms, so I suppose we were luckier than most. These meters had Ernest Turner and Sifam movements and Decca built driver amps designed by Alan Reeve. Iain Decca were probably the other notable exception, especially the classical recording side. Ian |
#125
Posted to rec.audio.tubes
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PUKE will **** HIMSELF
Iain Churches wrote:
"Ian Bell" wrote in message ... Iain Churches wrote: VUs were not really popular in the UK or Europe. Some tape mchines had them just for alignment purposes, but their interpretation for a musical signal was much too variable. In addition, with the advent of multitrack,. the visual monitoring of eight or more analogue meters proved tricky. That's why bar meters became so popular. Some companies (IIRC Surrey Electronics in the UK was one) made add-on meter units, 8,16,24,32 track indicators which could be fitted to the console overbridge. Our memories obviously differ. Certainly as far as the UK is concerned, VUs were standard in recording studios in the hey day of multitrack tape. When I was at Neve, 99% of all our consoles were fitted with VUs. The only exceptions I remember were the BBC and Pete Townshend. We might fit a bar graph meter on a stereo out but that was about it. Ian Just had an e-mail from a pal in the UK who states that Pete Townsend had a Trident desk. I wonder, was that before, after, or as well as the Neve? Probably after. Pete already had a Neve at Eel Pie when I went down there (probably 1975) - he just wanted an extension to add some more input channels. That same year we replaced the Helios in The Who's Rampart Studio with a custom Neve (designed by me) with real Rose wood end cheeks, real leather buffer and luminous silk screen printing on all modules. I remember going to Trident's launch of the A series about that time so it would most likely be after. Rampart was sold ISTR and I don't know if Pete still has Eel Pie or not. I wonder what Neve's market share is these days? Studer and Lawo seem ubiquitous and both have a very solid reputation. Pass Ian Iain |
#126
Posted to rec.audio.tubes
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Canceling distortion
On Tue, 19 Jun 2007 14:01:55 GMT, Eeyore
wrote: Phil Allison wrote: "Eeysore" According to Paul Tipler's Physics For Scientists and Engineers (Third Edition, 1991 by Worth Publishers): Normal Breathing 10dB ** Go test it out with an SPL meter I don't have a suitably sensitive one of my own. That idiot web ref is totally wrong ! Here's another one for you then ..... http://ccrma.stanford.edu/~jos/mdft/DB_SPL.html Human breathing (at 3m) 10dB I know this much. When I took those 30dB readings outisde the local venue it was quite clear that breathing wasn't registering as a significant component of the noise. You are quite quite wrong about this or you must have some serious nasal defect. of course this aspergers syndrome afflicted cretin has at least one serious nasal defect , it is the one through which what was left of his brain has been leaking away since he was sent down from Sydney Uni having been caught fellating a lecturer in the orchestra pit in an attempt to secure a passing grade. Any dialogue with this seriously developmentally delayed life(?) form is an abject waste of your time Kind regards! The Doctor Graham |
#127
Posted to rec.audio.tubes
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PUKE will **** HIMSELF
"Ian Bell" wrote in message ... Iain Churches wrote: "Ian Bell" wrote in message ... Iain Churches wrote: VUs were not really popular in the UK or Europe. Some tape mchines had them just for alignment purposes, but their interpretation for a musical signal was much too variable. In addition, with the advent of multitrack,. the visual monitoring of eight or more analogue meters proved tricky. That's why bar meters became so popular. Some companies (IIRC Surrey Electronics in the UK was one) made add-on meter units, 8,16,24,32 track indicators which could be fitted to the console overbridge. Our memories obviously differ. Certainly as far as the UK is concerned, VUs were standard in recording studios in the hey day of multitrack tape. When I was at Neve, 99% of all our consoles were fitted with VUs. The only exceptions I remember were the BBC and Pete Townshend. We might fit a bar graph meter on a stereo out but that was about it. Ian Just had an e-mail from a pal in the UK who states that Pete Townsend had a Trident desk. I wonder, was that before, after, or as well as the Neve? Probably after. Pete already had a Neve at Eel Pie when I went down there (probably 1975) - he just wanted an extension to add some more input channels. That same year we replaced the Helios in The Who's Rampart Studio with a custom Neve (designed by me) with real Rose wood end cheeks, real leather buffer and luminous silk screen printing on all modules. I remember going to Trident's launch of the A series about that time so it would most likely be after. Rampart was sold ISTR and I don't know if Pete still has Eel Pie or not. In the 60s and 70s, I lived at Richmond Upon Thames, quite close to Eel Pie Island, so went there often. Iain |
#128
Posted to rec.audio.tubes
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PUKE will **** HIMSELF
"Eeyore" wrote in message ... Iain Churches wrote: I wonder what Neve's market share is these days? Of what ? Studer and Lawo seem ubiquitous and both have a very solid reputation. Never seen any of either. I'd never even heard of Lawo until your post. Where do you come across these ? But you know the name Studer of course? Type the names in Google, and you will come up with some links to die-for audio consoles. The Lawo MC2-90 was used by YLE (Finnish Broadcasting) this year fotr Eurovision. It attracted a lot of attention from technical visitors, particularly the BBC I am told. Iain |
#129
Posted to rec.audio.tubes
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PUKE will **** HIMSELF
Iain Churches wrote:
"Ian Bell" wrote in message ... Iain Churches wrote: "Ian Bell" wrote in message ... Iain Churches wrote: VUs were not really popular in the UK or Europe. Some tape mchines had them just for alignment purposes, but their interpretation for a musical signal was much too variable. In addition, with the advent of multitrack,. the visual monitoring of eight or more analogue meters proved tricky. That's why bar meters became so popular. Some companies (IIRC Surrey Electronics in the UK was one) made add-on meter units, 8,16,24,32 track indicators which could be fitted to the console overbridge. Our memories obviously differ. Certainly as far as the UK is concerned, VUs were standard in recording studios in the hey day of multitrack tape. When I was at Neve, 99% of all our consoles were fitted with VUs. The only exceptions I remember were the BBC and Pete Townshend. We might fit a bar graph meter on a stereo out but that was about it. Ian Just had an e-mail from a pal in the UK who states that Pete Townsend had a Trident desk. I wonder, was that before, after, or as well as the Neve? Probably after. Pete already had a Neve at Eel Pie when I went down there (probably 1975) - he just wanted an extension to add some more input channels. That same year we replaced the Helios in The Who's Rampart Studio with a custom Neve (designed by me) with real Rose wood end cheeks, real leather buffer and luminous silk screen printing on all modules. I remember going to Trident's launch of the A series about that time so it would most likely be after. Rampart was sold ISTR and I don't know if Pete still has Eel Pie or not. In the 60s and 70s, I lived at Richmond Upon Thames, quite close to Eel Pie Island, so went there often. Iain AFAIR Eel Pie Studios was not on the island but I think you could see the island from it - - it was 30 years ago so the memory is suspect ;-) Ian |
#130
Posted to rec.audio.tubes
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PUKE will **** HIMSELF
"Ian Bell" wrote in message ... Iain Churches wrote: "Ian Bell" wrote in message ... Iain Churches wrote: "Ian Bell" wrote in message ... Iain Churches wrote: VUs were not really popular in the UK or Europe. Some tape mchines had them just for alignment purposes, but their interpretation for a musical signal was much too variable. In addition, with the advent of multitrack,. the visual monitoring of eight or more analogue meters proved tricky. That's why bar meters became so popular. Some companies (IIRC Surrey Electronics in the UK was one) made add-on meter units, 8,16,24,32 track indicators which could be fitted to the console overbridge. Our memories obviously differ. Certainly as far as the UK is concerned, VUs were standard in recording studios in the hey day of multitrack tape. When I was at Neve, 99% of all our consoles were fitted with VUs. The only exceptions I remember were the BBC and Pete Townshend. We might fit a bar graph meter on a stereo out but that was about it. Ian Just had an e-mail from a pal in the UK who states that Pete Townsend had a Trident desk. I wonder, was that before, after, or as well as the Neve? Probably after. Pete already had a Neve at Eel Pie when I went down there (probably 1975) - he just wanted an extension to add some more input channels. That same year we replaced the Helios in The Who's Rampart Studio with a custom Neve (designed by me) with real Rose wood end cheeks, real leather buffer and luminous silk screen printing on all modules. I remember going to Trident's launch of the A series about that time so it would most likely be after. Rampart was sold ISTR and I don't know if Pete still has Eel Pie or not. In the 60s and 70s, I lived at Richmond Upon Thames, quite close to Eel Pie Island, so went there often. Iain AFAIR Eel Pie Studios was not on the island but I think you could see the island from it - - it was 30 years ago so the memory is suspect ;-) No. I don't think the studios were on the island, or they would have probably been called "Eel Pie Island Studios" which would have been miselading as there were studios under the name of "Island" in an old warehouse in Camden. When Island records took over the premises, they inherited a cat. which became a favourite with everyone during the restoration and fitting out of the building. When recording started, the cat used to wander into the control room and sit on the console overbridge dead centre facing the monitors. He became known as Maurice Dolby, and many people considered him some sort of a talisman, a lucky charm, like Catweazle's frog, Touchwood, and specifically asked for him to be present on their sessions. Halcyon days:-)) Iain |
#131
Posted to rec.audio.tubes
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PUKE will **** HIMSELF
Iain Churches wrote: "Eeyore" wrote Iain Churches wrote: I wonder what Neve's market share is these days? Of what ? Studer and Lawo seem ubiquitous and both have a very solid reputation. Never seen any of either. I'd never even heard of Lawo until your post. Where do you come across these ? But you know the name Studer of course? Yes Iain. Type the names in Google, and you will come up with some links to die-for audio consoles. Yes, I found Lawo. As I said above I'd never heard of them before. The Lawo MC2-90 was used by YLE (Finnish Broadcasting) this year fotr Eurovision. It attracted a lot of attention from technical visitors, particularly the BBC I am told. You've just seen the one ? Graham |
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