Haley0918 added another entry to the Open 7400 Logic competition: Discrete logic amplifier:
This is my second entry for the 7400 logic competition. It’s a discrete logic amplifier made of mostly discrete logic chips. This amplifier is a continuation of my previous discrete logic preamp. The main objective here is to amplify the input signal to a suitable level for driving a buzzer or other voltage driven application.
You can check out his project in action below.
Via the contact form.