Sometimes you guys can be so ........grrrrrrrrrrrrrrrrrrrrrrr
De Paravicini: Phase characteristics are basically a matter of how you wind the coil structure, which is what I don't wish to discuss. The hysteresis is a function of how much magnetizable material there is in the core, so the larger you make that, the less significant hysteresis will be. And the lower the frequency, the more significant hysteresis becomes. In other words, the heavier the output transformer, the better it is likely to be. As there is no substitute for [cubic inches] in a car, there's no substitute for iron in an audio transformer. But the expense goes up very markedly, so there is a practical limit.
Stereophile: Well, we're sort of getting up to the present. Let's go back to the TVA-1. Was Michaelson & Austin's TVA-10 as successful as the TVA-1 in terms of sales?
De Paravicini: In many ways it was. The point is that in Europe people didn't need the higher power, so the 40Wpc TVA-10 was more than sufficient. But for those who wanted a no-holds-barred design, the next step was to be the M-200. M & A wanted to have a nice, big, flashy, impressive-looking amplifier and that was the M-200.
Stereophile: What's the rated power?
Tim de Paravicini Page 3 | Stereophile.com
Now take the "yes hat on" for once and look at:
https://sites.google.com/site/httpstubeamp/
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I'll bite. There is no mention of the TVP-1 there, so that is no evidence that TdP had any input into it. He does however say
This suggests that the -1 products were M&A designed and TdP did the TVA-10. After all one of the founders was called (an)Tony, so 'Tony's valve Preamp' is equally likely, if not more so given I have presented (from TdP bio) that TdP does not associate with the TVP-1.
This suggests that the -1 products were M&A designed and TdP did the TVA-10. After all one of the founders was called (an)Tony, so 'Tony's valve Preamp' is equally likely, if not more so given I have presented (from TdP bio) that TdP does not associate with the TVP-1.
Why is it that things sometimes are not easy to deal with ........?
According to information from the owner of Papworth Audio Technology, mr. F......., mr. T.de P. designed the preamplifier TVP-1 and that mr. K. Austin with the nickname "Bunny" later designed the TVX-P.
Papworth Audio Technology took over Mentmores Audio facilities in 1992.
so the man who bought the company and had something to gain from the TdP name claims Tim designed it. Tim however on his bio clearly only lists 2 M&A products. If you look at timelines I am not even sure Tim was living in the UK when the TVP-1 was launched
Hmmm balance of probability isn't in your favour.
Note, just cos people repeat something over and over on the internet doesn't make it true.
From Tim's bio
Hmmm balance of probability isn't in your favour.
Note, just cos people repeat something over and over on the internet doesn't make it true.
From Tim's bio
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Hi,
I think I can safely say I know the industry well enough to know?
Maybe TdP didn't judge it important enough to mention it but I sure do know for a fact the M&A DID advertise on paper that he did at the very least cooperate on the design of this TVP1 preamp. As a consultant or whatever.
Whatever it was the circuit shown here is nowhere near the same as I recall it, it had CCSs using triodes all over. Much like the TVPX. The main difference being them being cut down on the PSU.
Tim's an excellent designer but he's also surrounded by a lot of silly hearsay not to mention his knack for an aura of mysticism.
You guys should also learn the difference between an interview and actual fact...
Not to mention the truckload of BS even a well regarded designer can dump, right?
Cheers, 😉
I think I can safely say I know the industry well enough to know?
Maybe TdP didn't judge it important enough to mention it but I sure do know for a fact the M&A DID advertise on paper that he did at the very least cooperate on the design of this TVP1 preamp. As a consultant or whatever.
Whatever it was the circuit shown here is nowhere near the same as I recall it, it had CCSs using triodes all over. Much like the TVPX. The main difference being them being cut down on the PSU.
Tim's an excellent designer but he's also surrounded by a lot of silly hearsay not to mention his knack for an aura of mysticism.
You guys should also learn the difference between an interview and actual fact...
Not to mention the truckload of BS even a well regarded designer can dump, right?
Cheers, 😉
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If you know the industry well, then you should be able to contact one of the people who was there and ask them?
I am not using the interview as fact, just words from someone who was there. I however cannot see TdP would go out of his way on his bio to say 'later products' if he had done work on the -1 range.
The EAR website is, whilst not hard evidence a lot better than all the hearsay.
I am not using the interview as fact, just words from someone who was there. I however cannot see TdP would go out of his way on his bio to say 'later products' if he had done work on the -1 range.
The EAR website is, whilst not hard evidence a lot better than all the hearsay.
Hello
I have Build up a paar off M200 .the are havy beast,s with 215 W at 8 ohm with 0,12%
THD at 1kHz .I change all parts in the amp to high standard parts.And now they sound
Very well.I have the schematics for the M200 M100 amps.
Regards
I have Build up a paar off M200 .the are havy beast,s with 215 W at 8 ohm with 0,12%
THD at 1kHz .I change all parts in the amp to high standard parts.And now they sound
Very well.I have the schematics for the M200 M100 amps.
Regards
Hi,
My information stems from what M&A told me. Could be just marketing lies, I don't know....
One thing I'm sure of, they (M&A) had it on print on their leaflets during the Penta show of, I guess 1986 or 1987 thereabouts.
That said, the circuit diagram is a) incomplete and b) I know for a fact it had triodes as CCS somewhere. Too bad I lost my drawings.
Cheers, 😉
My information stems from what M&A told me. Could be just marketing lies, I don't know....
One thing I'm sure of, they (M&A) had it on print on their leaflets during the Penta show of, I guess 1986 or 1987 thereabouts.
That said, the circuit diagram is a) incomplete and b) I know for a fact it had triodes as CCS somewhere. Too bad I lost my drawings.
Cheers, 😉
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Hi Andrew,
Can you share the wiring diagram of the output transformer? I got a pair of original M200 OPT in hand but need to know the correct wiring method.
Thank you.
BR
Paul