If you’ve been tearing electronic devices apart for long enough, you’ll know that the old gear had just as many mysteries within as the newer stuff. The parts back then were bigger, of course, but ...

The acronym “IF” as applied to superheterodyne receivers stands for “intermediate frequency” and so the above title is, to be a purist, an absurdity in referencing a “frequency frequency” but I've ...

The venerable superheterodyne is very much with us. The intermediate frequency amplifier, the IF amplifier or the IF stage, requires alignment of the IF transformers for optimum performance so let's ...

If you are below a certain age, you’ve probably never heard of a Q multiplier. This is a device that increases the “Q” of a radio receiver’s intermediate frequency and, thus, provide a higher ...