Value of capacitor - Printable Version

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Value of capacitor - bridkarl - 05-12-2025

I’m having to replace this audio coupling cap between the plate of a 6F6 and a phone jack.
The parts list just says .005 20 percent mica which I’m reading as 5000pf. Am I reading that right.

Previous owner put in an .005 electrolytic.

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RE: Value of capacitor - HowardWoodard - 05-12-2025

According to AI, "Yes, you're reading that correctly. A .005 capacitor typically refers to 0.005 microfarads (µF), which is equivalent to 5000 picofarads (pF). The 20 percent mica notation indicates the tolerance of the capacitor, meaning its actual capacitance could vary by ±20%.

Mica capacitors are known for their stability and reliability, making them a solid choice for audio applications. If you're replacing the coupling capacitor, just ensure the voltage rating matches or exceeds the original spec.".

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RE: Value of capacitor - bridkarl - 05-12-2025

That’s what I thought, but when I’m undoing 50 years of “repairs” it never hurts to check. Thanks

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