I have a question on Inductors for VHF Amplifiers and Transmitters. I often see circuits on the web, where several aircore enameled copper wire inductors are used. The specification looks something like this: L1 = 5 Turn 26 SWG Enamelled Copper 10mm diameter aircore
I understand all the attributes of this specification. But the problem arises when a specific guage of wire used in the circuit, is not available with me. In such scenario I thought of using the calculators available online (like this one) to calculate the inductance of the Coil. For that inductance, with simple reverse calculation I will try to determine the number of turns and coil diameter for a different guage wire which is available with me. The inductance may not match exactly, but it reaches very close to the desired inductance. My question is, is this approach correct? Can I really replace an inductor in RF circuit which is expected to be x turns of y guage wire of z diameter by an inductor which is x1 turns of y1 guage of z1 diameter. The question might be silly for subject matter experts, but I am not originally from Electronics Background. So, just wondering if apart from the inductance of the coil, anything else matters to those RF Circuits.
I also see that some circuit uses 'RFC' or 'FM RFC'; and often no other specification is supplied. I understand it means Radio Frequency Choke. But is there any standard inductance for an RFC? If I don't have an RFC for say 100 MHz, how can I make one myself?