Introduction to Electronics by Salter Science Crystal Radio

The Introduction to Electronics by Salter Science is ideal if you are into building crystal radios and one-transistor radios. The antenna coil and ferrite rod work extremely well together, and with the germanium diode, the radio was sensitive and gave many stations. The one transistor radio also performed well.

Crystal Earpiece

This old crystal earpiece seems to perform much better compared to some of the modern equivalents. This one appears to be louder.

Germanium Diode

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