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Resistor upgrade for Firstwatt F1
Resistor upgrade for Firstwatt F1
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Old 31st May 2009, 05:14 PM   #1
milezone is offline milezone  United States
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Default Resistor upgrade for Firstwatt F1

Hi,

I'm gathering parts for a Firstwatt F1 build and am wondering of upgrading from the Vishay metal film resistors to tantalum film or Riken carbon film resistors will have significant sonic benefits. Any help would be greatly appreciated. Thank you.
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Old 1st June 2009, 02:02 AM   #2
Nelson Pass is offline Nelson Pass  United States
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Resistor upgrade for Firstwatt F1
I can't see how they would hurt.

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Old 1st June 2009, 05:15 PM   #3
milezone is offline milezone  United States
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true. I guess what I'm wondering is whether the difference is discernible. At 5 bucks a resistor things could get pricey. Also on a similar note, would it be problematic to use a 220 ohm resistor instead of a 221 ohm resistor in the fourteen different places in which they are used on the circuit? Any help is greatly appreciated. Thank you.
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Old 1st June 2009, 06:57 PM   #4
Nelson Pass is offline Nelson Pass  United States
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Resistor upgrade for Firstwatt F1
As a rule, Gate stopper resistors need not have any tolerance to speak
of. The functional values for these range down to about 100 ohms without
much difference.
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Old 17th June 2009, 04:19 AM   #5
milezone is offline milezone  United States
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Thank you for your knowledge (and your design!). Is this true for other resistors in the circuit as well as well? If I do replace the Dale resistors with tantalum film resistors, the values of some of the resistors will off by a few ohms. Is this problematic? Thank you.
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Old 17th June 2009, 03:48 PM   #6
Nelson Pass is offline Nelson Pass  United States
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Resistor upgrade for Firstwatt F1
Almost never is it a problem.

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