23 Sep
2010
23 Sep
'10
10:18 a.m.
My favorite use for the 555 that I ever saw, was in a homebrew paper tape reader in Byte
or PE in the mid-70's.
The timing function wasn't used at all; only the Schmitt trigger function used.
Default 555 Schmitt trigger action is at 1/3Vcc and 2/3Vcc; just brilliant!
Tim.