<p>In this episode, I'm talking about when I was a full-time instructor in advanced industrial electronics for Indiana Vocational Technical College (IVY Tech). For one of my labs, I challenged my students to build an analog amplifier from a 7405 TTL logic chip. It was a blast!</p>

In this episode, I'm talking about when I was a full-time instructor in advanced industrial electronics for Indiana Vocational Technical College (IVY Tech). For one of my labs, I challenged my students to build an analog amplifier from a 7405 TTL logic chip. It was a blast!

Making an audio amplifier from a 7400-series TTL open collector logic gate

True stories about technologies I've used over the past fifty years. From 4-bit, Intel 4004 microprocessors to the marvel of op-amps to building an interface to an HP-3000 in a rat-infested animal feed company.

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Making an audio amplifier from a 7400-series TTL open collector logic gate

Making an audio amplifier from a 7400-series TTL open collector logic gate