I am building an FM radio circuit and a 27pF capacitor (ceramic) is required in that, but I don't have one. But I do have 56pF capacitors. So I was thinking that I can use two 56pF in series to get an equivalent 28pF.

Is it possible and will it affect the circuit?


Yes, you can do that.

And FM radio is not DC; it actually involves frequencies around 100 MHz.

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  • \$\begingroup\$ Sir i have another doubt. what is the difference between Ceramic filters and crystal oscillators. Can filter be substituted by the crystal oscillator? \$\endgroup\$ – alnLucky Apr 2 '15 at 15:50
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    \$\begingroup\$ That's an entirely separate topic. You should start a new question for that one. \$\endgroup\$ – Dave Tweed Apr 2 '15 at 15:54

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