Regarding rti8 rebuild

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Hi,

I have three questions. The first is in regards to c1 & c2 on the rti8 crossover. The value reads met 0 22j 100v. From reading, I understand J is in reference to tolerance (22 I would think is size). Met is metallized polyester film. V for volts. I do not understand the 0 part. I am not sure what the replacement part would be. Note: I am going with the csa line Clarity Cap per previous discussion on this site. The second is regarding air core/iron core. Were I to go with air core, how do I determine the correct size replacement for the original iron core? The last is regarding the resistors. I am thinking about Path Audio resistors. Thoughts about that?

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  • VR3
    VR3 Posts: 28,309
    edited June 10 Answer ✓
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    It's a bypass cap to the larger value, just leave it blank when you update the other caps
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
  • F1nut
    F1nut Posts: 50,085
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    That would be 0.22uF, which are bypass caps as noted. You don't need those when upgrading the other caps.

    The values for the inductors would be noted on the schematic.

    Path Audio resistors are huge.
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  • F1nut
    F1nut Posts: 50,085
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    Thank you for the responses. Out of curiosity, what is the purpose of the bypass cap in the original design if it is not needed when swapping in better parts?

    To help the sound of the inferior electrolytic cap it is bypassing. Bypass caps are not needed or desired when using superior film caps and in fact impart an annoying artifact.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


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Answers

  • musicmorsels
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    Thank you for the responses. Out of curiosity, what is the purpose of the bypass cap in the original design if it is not needed when swapping in better parts?
  • SeleniumFalcon
    SeleniumFalcon Posts: 3,584
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    As the frequency rises the capacitor's inductance tends to act like a filter, diminishing it. When a smaller more ideal capacitor is paralleled with it this effect is reduced, it behaves more like an ideal, non-inductive capacitor. If a more ideal capacitor is used with lower inductance at higher frequencies the necessity of a bypass capacitor is reduced.