Tickle my whisker

[Edbo2]

What with the resurgence of turntables and now valve amplifiers it's about time I dusted down my crystal set!

 

[MajorFubar]

I had a Thomas Salter Science electronics set when I was a kid. One of the projects was making a 'crystal' radio using the diode and the variable capacitor. It actually worked! Unfortunately one of the projects further on in the instruction book demonstrated how wiring a diode the wrong way round blocked the current flow. What they didn't explain is it also blew the diode.

 

[busb]

The best or certainly the most interesting design for an xtal set involved a centre-tapped coil with a dual ganged variable cap & 2 diodes for double the output - sweeet. As for the sets I built - I cheated by using Germanium dioades rather than making up my own ones.

 

[nopiano]

I had a crystal radio too, from a science kit. Had a singe core aerial from my house to next door's gutter. Clear as a bell on the Home Sevice aka Radio 4.

Amazing with no battery or transistors.