Electronic Circuit Design

I have a question about your "Long Duration Timer" circuit, del20017 found here ..Long Duration Timer Clock You have labeled U1 as a 4093. A 4093 is a NAND with schmitt trigger inputs, yet the schematic displays only NAND gates without schmitt trigger… more »

Date: Wed, 30 May 2007 17:00:46 -0400   - Subject: 555 simulator Hello, I just found and had a chance to play with the 555 simulator over the internet. As I do a lot of designing and use the 555 in many of my projects, this tester is a really… more »