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Old 18th September 2011, 12:12 PM   #1
Green77 is offline Green77  Sweden
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Default Nishiki Amplifier with 2SC5200

Will build the Nishiki amp with 2sc5200.

Will order from Mouser.
Is it any diffrent in this parts? Can i use either?

2SC5200 STMicroelectronics Bipolar Power

2SC5200-O(Q) Toshiba Bipolar Power

Thanks //Daniel
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Old 18th September 2011, 12:40 PM   #2
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Hi

The last time I got in touch with Toshiba Electronics Asia, I was inquiring about Fairchild's 2SC5200 if it is at par with their Toshiba 2SC5200 this is their response,

Thank you for your inquiry.
Toshiba has replacement part for 2SC5200/2SA1943.

Replacement part nos. TTC5200/TTA1943.

you may consider this pair,

Pls open this link to view the data spec,

http://www.semicon.toshiba.co.jp/doc...eet_090713.pdf

http://www.semicon.toshiba.co.jp/doc...eet_090713.pdf

Tks !

Best Rgds

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Janice Tan
TOSHIBA ELECTRONICS ASIA (S) PTE LTD
Asian Based & Distribution Account Dept

Tel : (65) 63710139 (DID)
Fax : (65) 62715155

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Seems like STmicroelectronics did also produce their own 2SC5200 huh

Regards
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Old 18th September 2011, 01:03 PM   #3
Bigun is online now Bigun  Canada
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Which Nishiki version will you build - I think there were up to 3 versions in the end ?
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Old 18th September 2011, 01:20 PM   #4
Green77 is offline Green77  Sweden
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aha, ok, i have just seen one lockated here:
http://www.wimdehaan.nl/downloads/te...lnishiki41.pdf

I will go for a ecc88 in front and 2sc5200 for the output. +/- 25V
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Old 18th September 2011, 02:28 PM   #5
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Just asking...
This Nishiki amplifier is for people who likes amplifier which distorts quite a lot. You build it because you are searching for specific amplifier´s color, right?
Or you just want tube sound without output tubes and output transformer?
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Old 18th September 2011, 02:54 PM   #6
AKSA is offline AKSA  Australia
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Distortion gets a bad rap. This is harmonic coloration, of the type much valued with tube amps for guitars. If you pay for the amp, I guess you have a right to express your preference!

I say the Nishiki is an interesting amp, with tube sound. The documentation is superb and ideas quite legitimate. All amplifiers distort to some degree, but THD is only part of the picture. The profile of the distortion is important. That's the reason a tube amp with 1% sounds somewhat more pure than a SS amp with 0.1% - the profile of the distortion is different, with tubes having high levels of low order artefacts and SS feedback amps having a long train of artefacts at very low amplitude.

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Old 18th September 2011, 03:14 PM   #7
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Thanks for nice response. I am sure there is lot of hifi folks out there looking for specific coloration, so Nishiki amp will give you one flavor. Is it right to think that this amplifier is not good for complex music like rock/metal?

But isnt the crossover distortion quite high in class AB amps without NFB?
Also have you listening experience between full complementary and quasi complementary? I have read that BJT quasi doesnt work so good, but VMOS quasi does.

Last edited by kacernator; 18th September 2011 at 03:18 PM.
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Old 18th September 2011, 03:22 PM   #8
Green77 is offline Green77  Sweden
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Well, i have built around 5 tube amps but never a SS. I want to try that and looking for a hybrid to get somr tube sound

But i still don't understand my question in my first post.
What is the diffrens between the two 5200? Can i used the cheaper one?
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Old 18th September 2011, 04:58 PM   #9
Bigun is online now Bigun  Canada
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Both devices are suitable and equivalent.
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Old 18th September 2011, 05:04 PM   #10
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Default nishiki design

The original idea was to publish the Nishiki in 3 parts. First as published in TAA, 2nd part using a 6N3P tube in long tail with a 6N1P as cathode follower and the 3 part using an ECL82 is driver. This ECL82 does has an incredible sound. Part 2 and 3 never made it in TAA.

Enclosed a document with a Tubecad Aikido as driver, all components values are my own choice. Also, the 5965 tube does only 'sound' good when it draws at least 3 mA.

Wim

PS. the PDF file seems too large for this forum, I will try to upload it tomorrow once more with a smaller size file.
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Last edited by wimdehaan; 18th September 2011 at 05:14 PM.
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