That’s how I got started — 7400 TTL chips are very forgiving to a young person’s hand. I was amazed you could just write away to National and the day’s send ba

That’s how I got started — 7400 TTL chips are very forgiving to a young person’s hand. I was amazed you could just write away to National and the day’s send back a databook! I would pour over them and think of ways to use various chips.