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Simplistic NJFET RIAA
Simplistic NJFET RIAA
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Old 19th March 2012, 02:44 AM   #7411
dimkasta is offline dimkasta  Greece
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I have those
CMF5547K000FHEK
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Old 19th March 2012, 01:56 PM   #7412
Tea-Bag is offline Tea-Bag  United States
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Simplistic NJFET RIAA
Quote:
Originally Posted by dimkasta View Post
I have those
CMF5547K000FHEK
For the CMF55,
There are now more .1% and 25ppm ones available in the states, and I would recommend them for the cost, about .47usd, if you can get them in those values. A good price for a resistor with a tight tolerance and low tempco.
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Old 19th March 2012, 02:09 PM   #7413
dimkasta is offline dimkasta  Greece
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True. Nice
CMF5547K000BER670 Vishay/Dale Metal Film Resistors - Through Hole
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Old 20th March 2012, 06:43 PM   #7414
atupi is offline atupi  Romania
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My preamp is in getting some new aluminium cloths

I'm waiting for a toroidal transformer also a very nice power switch/button to be installed in the front of the case.

Despite buying some Mundorf Mcap 0,1 for interstage coupling i didnt liked so i used some NOS ERO Mkp1845 0.047uf wich sounded more balanced. Also i changed the 15nf capacitors in RIAA to NOS Ero kp1830 (MKP1837).
I will change also the resistors in RIAA network with some more precisee ones as i'm preparing a bigger order to Farnell next week.

By the way wich resistors to order to Farnell, carbon film, metal film ?
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Old 20th March 2012, 07:00 PM   #7415
Salas is offline Salas  Greece
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Simplistic NJFET RIAA
Nice.. Order Dale 1% 100ppm metal film.
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Old 20th March 2012, 07:00 PM   #7416
dimkasta is offline dimkasta  Greece
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Nice one. How much time did you break in the Mundorfs? Im getting some plain MCaps and some plain supremes this week, and I was wondering what to expect
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Old 20th March 2012, 07:06 PM   #7417
atupi is offline atupi  Romania
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I dont know exactly, 20-30 hours.
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Old 21st March 2012, 06:16 AM   #7418
Salas is offline Salas  Greece
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Avoid the white Mundorf with the red letters in signal path and give time to the supreme.
The Obliggato MKP oil can with cockroach head is good value for money for output, big & weird to mount. But retro, I like.
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Old 21st March 2012, 10:01 AM   #7419
dimkasta is offline dimkasta  Greece
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True. 30 hours are very few
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Old 21st March 2012, 07:07 PM   #7420
Djinn is offline Djinn  Norway
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Would you use any bypass cap with the obbligato MKP oil caps? Does the teflon 0.22uF FT-3 caps used as bypass cap be a to high value used with a 2uF cap?
I am truly sorry that matching is not my strong side. :-( Because of this lack of knowledge I feel I have to ask some silly questions, but my eagernes to listen, read and learn is very strong. :-)

With the kindest regards

Martin
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