Old LED Message Display  
Written by AnubisTTP on 2010-12-09  

Old LED message display project, normal operation.

The LED display is a TITL393, salvaged from a dead calculator.

No homebrew project would be complete without a gimcracked battery for power. If the duct tape does not contain the voltage, the rubber bands will!

©2000-2017 The Vintage Technology Association. All rights reserved.