Steve Smith wrote:
> Ok  a crystal set with gain....
>
> Look up a ZN414 it's a 3 terminal RF block you need
> 1 coil
> 1 capacitor
> 1 resistor
> 1 ZN414
> And a 2.4v battery
>
> Worlds second simplest radio

This will not very well at 12MHz, unless we're talking about a very powerful 
transmitter or very short distances. For good selectivity, you would need to 
use the ZN414 in a superhet configuration (w/ a transistor mixer and 
oscillator circuit), but then it's no longer "world's second simplest radio"

Super-regenerator may be ideal for this application, however... OP: can you 
provide a better description of the application? What exactly are you trying 
to accomplish?

Best regards,

Vitaliy 

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