Can the color ring inductor replace the high frequency choke?

Three-tube radio to use inductance 2.5mH high-frequency chokes, but no, can be sold on the market with the 2.5mH color ring inductor to replace.

Ordinary color ring inductor is not good, parasitic capacitance is larger, you can buy high frequency inductor. If you only use a few, you won't be as fast as yourself.

The high frequency loss of the color ring inductor is relatively large, it is best not to use it.

Out-of-service. Because the loss of the ordinary color ring inductor is too large when it is used in the high frequency circuit. In the radio circuit, the energy of the high-frequency part is very small, so the inductor in the high-frequency circuit mainly considers the low high-frequency loss. The amount of inductance is secondary and does not have to be very accurate. If you can't buy it, you might as well make one yourself: use a magnetic rod that is about three millimeters straight and about ten millimeters long, and scratch it three to five hundred turns with enamelled wire with a diameter of 0.01mm, and you can use it.

The high choke mainly prevents the electromagnetic wave of frequency above a certain frequency range from passing through, because its parasitic capacitance will weaken the signal, but will not filter it completely, so we mainly need its high-frequency choke effect here. Instead of considering the attenuation of the signal (the signal attenuation will not be very large), the attenuated signal can be solved by increasing the working point of the high frequency amplifier.

In addition: the inductance index of the inductor coil refers to the amount of inductance in the case of fixed frequency, so the inductor with the same inductance has a wide general range and can be used in your case. However, if your circuit requires a high signal strength, it depends on how you actually use it.