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Old 13th March 2010, 12:07 PM   #1121
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Will the size of the delay capacitor affect the relay shutdown time? I mean, its size affect the time to open at the startup. The bigger, the more time waiting for it to turn on. But, does the size affect the time it closes the relay when you shut it down?

Because could be safer to use a lower value to lower its shutdown time. Just wondering...
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Old 13th March 2010, 12:18 PM   #1122
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I noticed mine immediately shuts down. (as well as inputs in mez) at loss of power.
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Old 13th March 2010, 02:12 PM   #1123
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Quote:
Originally Posted by tincanear View Post
uriah,

thanks for the fets. got them today but i'm a bit confused about the markings. set of 4 with 5.94 5.96 are IDSS matched quad, but what about the 2 by themselves (one looks like 43190)?

-tincanear (bruce w)
The first 4, like you said were 5.94 and 5.96. The other two are 4.3190. my tester is very accurate but I think my tester uses 5V or maybe even less so my numbers end up a bit different than if you used a 9V and 1k resistor. You need 6 2sk170 and those will do the trick.
Uriah
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Old 13th March 2010, 02:37 PM   #1124
Salas is offline Salas  Greece
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If those are BL they will certainly read over 7mA with 9V. Not over 100R resistor if you like reading by voltage drop BTW.
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Old 13th March 2010, 02:43 PM   #1125
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I got them from Honk Kong Spencer. Not sure what grade they were.
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Old 13th March 2010, 02:45 PM   #1126
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dont know how many tincanear needs, but fyi - the dcb1 needs 10 overall, only idss matched on the front end (4).
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Old 13th March 2010, 02:49 PM   #1127
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some uber ldr dude sent me a cute little stuffed board my wife likes a lot
And it is all professionally looking built up and stuff.
This isn't even diy, since mine was built for me...I am losing my touch.
Is this old school or new school circ?
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Old 13th March 2010, 03:00 PM   #1128
udailey is offline udailey  United States
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Shoooooot. Your right.
Well, will have to mail out some more..
Hey before you fire up that cute little board TeaBag, make sure to turn the 200R trimmer on the right to middle position. Just count turns, dont worry about exact.
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Old 14th March 2010, 11:42 AM   #1129
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Last friday I changed out the 0.33uF GE caps I had in the DCB1 and replaced them with 2 x 0.22uF Wima MKP.

To recap a bit, so far there has been 3 different caps tried here, 2 bigger uF film caps, (4.7uF) of which a bennic one was best, and then the 0.33uF film. I decided to try the wima because I wanted to a) see what smaller uF values were like and b) MKP was what Salas originally suggested. Up till this 0.22uF the Bennic 4.7uF sounded the best.


So after allowing some burn in of the wima 0.22uF I have to say I am really impessed with it. The detail retrieval is definitely up, but what you really notice is what I call "presence". Piano key strikes are much more real, you can almost feel the strike of the key, or taps of the stick on the edge of a snare are so well defined and real. I suppose all that is transient information, but when you have it there it makes a hell of a difference. The other thing that is noticeable are voices - again, more real. Now all of this is there to some extent with each of the caps, but the wima/bennic have more of it than the others.


So these little wima mkp are at least as good as the Bennic 4.7uF and would be cheaper by far. I do have some wima mkp 4.7uF and I might try them but to be honest its low on my priority list now, given that these are so good.


Now, has anyone else tried this? Would be good for someone else to have a go and see do they get the same results....


Fran
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Old 14th March 2010, 11:47 AM   #1130
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Aye! So we shall make space for a 0.22 Wima if a blue solder mask new GB ever runs.
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