R
Radio Man
- Jan 1, 1970
- 0
I need a sensitive light detector that i can place in front of the eyepiece
of
a binocular. This detector should sound a "beep" whenever it detects light.
I would also like it to be powered by 6 vdc or less.
of
a binocular. This detector should sound a "beep" whenever it detects light.
I would also like it to be powered by 6 vdc or less.