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Old 22nd February 2007, 10:22 AM   #1
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Default carbon resistors for A30

Hi,
there some troubles using 1/4W carbon resistors instead metal film resistor in A30?
If is only a problem of tollerance, I can selected the resistor to find the exact value.
giorgio
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Old 22nd February 2007, 11:35 AM   #2
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Default Re: carbon resistors for A30

Quote:
Originally posted by same
Hi,
there some troubles using 1/4W carbon resistors instead metal film resistor in A30?
If is only a problem of tollerance, I can selected the resistor to find the exact value.
giorgio
if you like it-just go for it
in range of 5%,even tolerance isn't a problem
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Old 22nd February 2007, 12:57 PM   #3
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Default Re: carbon resistors for A30

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Originally posted by same


1/4W carbon resistors

The carbon R is good for the vintage.
I have also heard that the carbon R contains more noise.


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Old 22nd February 2007, 03:48 PM   #4
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hi,
is not for their "sound" (somebody say that carbon resistors sounds better..) but because I can find only carbon resistors with the right dimensions for Peter Daniel's board
giorgio
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Old 22nd February 2007, 03:51 PM   #5
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You can always use regular resistors and mount them vertically.
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Old 22nd February 2007, 03:58 PM   #6
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Hi,

I wouldn´t use normal carbon resistors. You can use 1/8 watt metall film in most places and they will fit quite nicely.
With carbon the tempco is higher, the noise is higher there´s a difference in sound.

William
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Old 24th February 2007, 01:35 PM   #7
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Quote:
Originally posted by wuffwaff


You can use 1/8 watt metall film in most places and they will fit quite nicely.

William

This is not a bad idea. I have studied a bit the circuit, seem to me that all resistors over 1K works under 1/8 W power.
A bit critical, maybe, are the two 1.5K resistors (R17,R18)
Is that correct?

giorgio
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Old 25th February 2007, 08:38 AM   #8
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Hi,

there´s not much current flowing through R17/18 them so I would try.
How come normal 1/4 wat metallfilm don´t fit? I use standard ones wich are just 6-7mm long.

William
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Old 26th February 2007, 08:53 AM   #9
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Hi,
I don't have physically the Peter Daniel's board, but looking the plot seems that the distance between holes is 5mm (more or less).
giorgio
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