UHF oscillator

Step 3 Add the resistors

The resistors have been soldered in next. They are not that critical, however, in order to keep the assembly compact so that another stage or device can be fitted to the board later, they have been squeezed together against the transistor.

A ferrite bead (piece of ferrite core with a hole down the middle) has been placed over the lead of the emitter resisor to form a small inductor there.

Frequently, while taking apart old rf gear, I come across these coils which have ferrite cores in them. Some of those cores have holes through them and they get saved as ferrite beads.