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Old 18th October 2007, 08:48 AM   #1
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Default Rossiter Headamp for MC Cartridges

Hi gents,

On the web I`ve read about an audioxpres article (issue 9/06)dealing with an "headamp for very low impedance moving coil cartridges" by a guy named Paul L. Rossiter. They say that the design would be similar to the head amp from Marshall Leach (floating supply), but further elaborated.
I would be very thankful if somebody on this forum could supply a copy of this article or at least the schematic. I think it could be a valuable information for all those interested in high quality vinyl music reproduction.

Regards,
Jürgen
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Old 22nd October 2007, 10:17 AM   #2
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Hello Jürgen,

i don't know this rossiter amp, but i know the leach amp. if you search, you will find a lot of articles about with the scematic included

Regards
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Old 22nd October 2007, 12:29 PM   #3
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Thanks for advice, I know the article about the leach headamp very well, a clever design. That`s the reason I am lookin for the schematic of the Rossiter headamp as it is said to be an advancement.
Could it be that nobody of the forum`s US-participants has a subscription of the audioxpress magazine? If the content is that confidential, somebody better tell me.

regards, Jürgen
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Old 29th October 2007, 12:05 PM   #4
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C`mon 170 replies and no clue?
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Old 30th October 2007, 05:22 AM   #5
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It's a 12 page article ! I think you might get slightly better designs now. Are you sure you want to build this ?
Cheers.
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Old 30th October 2007, 05:39 AM   #6
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Thanks a lot for your reply! Well I am not quite shure if I want to built it but if I do not know the schematic how can I decide?
At least I am very interested in the design as it shall be based on the leach headamp which has two nice features:
No problems with DC at the input and a current input.
So after all I would be very pleased if someone could provide the article or the schemaitc.

Regards, Jürgen
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Old 30th October 2007, 05:50 AM   #7
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The article must be copyrighted so I cannot put it up here. I could however send you a copy of the schematic via private email.
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Old 30th October 2007, 08:06 AM   #8
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Hello Ashok,

can you send me this article too. i am very interested.

Thanks and

Regards
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Old 4th February 2008, 06:57 AM   #9
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Quote:
Originally posted by ashok
It's a 12 page article ! I think you might get slightly better designs now. Are you sure you want to build this ?
Cheers.

ashok, could you elaborate on this comment, i.e., could you provide a short list of examples?

thx, Alex
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Old 4th February 2008, 11:25 AM   #10
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Here's another take on the Leach common base design head amp.

PS.
Ashok, can you email the Rossiter design to me too?
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