Hi as suggested by one of the forum members I have descided to present my home made radios as shown on http://makearadio.com/index.php The first of many I am going to show you is my version of the mystery crystal set with both improved sensitivity and selectivity.
For a full write up and building instructions check http://makearadio.com/visitors/nick-mystery.php basically I have built a standard set but with an unusual twist to improve its perfomance.
I hope you find this set worth your interest, or even having a go at yourself.
I made the tuning scale by printing onto a printable mirrored cd and the tuning pointer is a small clock hand on the capacitor shaft
Happy building and 73 for now Nick G0CWA