[HBQRP] Meeting circuit 555 Astable mutivibrator

[Jim Kilby]

This is the 555 astable multivibrator circuit at the meeting on 2/8/2014.
The circuit has both adjustable frequency and duty-cycle. The circuit
is an easily constructed from readily obtained components (junkbox) 

and be an easy project that could serve launching point for future designs. 


Are there any designs suggestions for future projects?

 
Jim Kilby KGØRD