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Lowest noise BJT transistor?
Lowest noise BJT transistor?
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Old 17th October 2019, 08:00 AM   #141
mchambin is offline mchambin  France
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As said:
Quote:
Most audiophiles do not know about engineering.
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Old 20th October 2019, 06:59 AM   #142
SyncTronX is offline SyncTronX  United States
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Default LIGO Confusion

Quote:
Originally Posted by johnego View Post

It's an interesting article and good research.
My problem is trying to read the graphs, even when magnified.


Colors should have been further divided

using .........
or - - - - -

& - . - . - . - . etc.

At least that would separate the higher cost resistors
from the lower cost resistors and we could better see
which gives best cost:quiet ratio.

Issues I continue to have with it follow.



Figure 6: Be my guest.

Figure 7: Yel is good.
lt grn: good.

dk blue/gray: good

royal blue good.
org & brown: mediumgood.

Figure 8: Red looks good, but which lt. blue?
royal blues looks good, but which of the 3 oranges?

Figure 9: Doesn't count, too easy.

Figure 10: Which resistor?
lt grn: Yageo RC1206 or Vishaly Dale CMF55?
dk grn: Mira 0805 or Roederstein SMM0204-MS1?
Yel: Looks Good.

Pink: Yageo MF0207 or Welwyn RC55Y look good.


Figure 11: Which Resistor?
lt Blu: Yageo RC0805 or Vishay MMS0204? Wrong one is noisy.
org: MIRA 0805 or Susumu RG-Series?
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Old 20th October 2019, 08:00 AM   #143
johnego is online now johnego  Indonesia
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Quote:
Originally Posted by SyncTronX View Post
It's an interesting article and good research.
My problem is trying to read the graphs, even when magnified.
I printed it, viewed in large size to see the color, made notes. After that it was easy because the bad resistors are grouped already. When resistance is 1k (and above), none of the 100ppm is good enough.
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Old 20th October 2019, 01:36 PM   #144
gerhard is offline gerhard  Germany
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They also use thick and thin lines, but that does not help much.
At least 2 of the better ones seem to be easily sourced:

< Durchkontaktierbare Widerstande | Widerstande | DigiKey >

< LTW964TPW06030DB00 Vishay Dale | Kits | DigiKey >
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Last edited by gerhard; 20th October 2019 at 01:40 PM.
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