Search Results for transformer

Transformers, Audio Radios also contain audio transformers. They contain two coils of wire wound around a metal core. Transformers help move the audio from one stage to the next, and couple the final audio stage […]

A lot of us like imagining and then building gadgets. Most electronic devices from the fifties, sixties and early seventies were almost always analog. They were easy to design and repair. Parts layouts weren’t that […]

While more art than science, it is getting somewhat easier to determine the age of vintage transistor radios and other mid-century electronic devices. This is thanks to the work of a few fellow hobbyists. For […]

RF/IF Coils and Chokes Examples of fixed and variable inductors. Radio Frequency coils (RF coils) are also called inductors. They are typically measured in fractions of a Henry. They can be variable values or fixed […]

Why Trace? A signal tracer is simply an amplifier that can detect audio and RF signals and then play them through its built-in speaker. By tracing signals stage-by-stage through your radio you can find the […]

For some collectors, condition is everything. If it’s not perfect, it belongs to someone else. Others are willing to ignore the occasional dent or crack or chip. Let’s look at the subjective concept of condition. Obvious […]

Start Slowly It doesn’t take much to get started. Over time as your interest grows so too can the bench clutter. Start with the basics. Signal Tracer Simple, but it works. Minimally you will need […]

Fumes, Flames, Shocks and More Compared to hot air ballooning or rock climbing, transistor radio repair is not very risky. The three things to keep an eye on are: Fumes from soldering and chemicals; hot […]

Even Beginners Can Do These You don’t need to understand much radio theory or any engineering formulas to do many common AM transistor radio repairs. You might need to do some soldering and desoldering. If […]

Replacing Electrolytic Capacitors The best way to learn how to recap is to try doing it yourself. For less than the cost of a movie and popcorn for two you can purchase a dead set […]