Record players and Hand held radios

Can you remember when you had your first record player and a hand held radio with one ear piece.

This page is a permanent link to the reply below and its nested replies. See all post replies »

Gibbon · 70-79, M Best Comment

My first handheld radio was a crystal radio with a single ear piece no battery required

Iwillwait · M

@Gibbon How did that power on?

Gibbon · 70-79, M

@Iwillwait No power switch since no power required. Some had an alligator clip to clip to a length of wire or any floating metal as an antenna ie a window frame or gutter. Mine had a loop antenna built in. A crystal radio is always on basically.

Iwillwait · M

@Gibbon explain that, no power needed, how is this getting power?

Gibbon · 70-79, M

@Iwillwait An inductor and capacitor circuit connected with a diode, the crystal, are directly resonated by the AM signal when tuned. This is very low power fed into a high impedance speaker in the earphone. This allows hearing the audio without external power. This existed decades before the 9 volt battery.