if transformer การใช้

• However, the name " IF transformer " was retained and is still used today.
• Modern receivers typically use a mixture of ceramic resonator or SAW ( surface-acoustic wave ) resonators as well as traditional tuned-inductor IF transformers.
• Along with a few cosmetic differences, there wasn't much difference electrically between the new model and earlier 1000 series models aside from the addition of the FM subchassis and IF transformers.
• In the 1920s, commercial IF filters looked very similar to 1920s audio interstage coupling transformers, had very similar construction and were wired up in an almost identical manner, and so they were referred to as " IF transformers ".