Jobs’s triumph was soon complete. A few weeks after winning his power struggle with Raskin to run the Mac division, he helped push out Mike Scott as Apple’s president. Scotty had become more and more erratic, alternately bullying and nurturing. He finally lost most of his support among the
employees when he surprised them by imposing a round of layoffs that he handled with atypical ruthlessness. In addition, he had begun to suffer a variety of afflictions, ranging from eye infections to narcolepsy. When Scott
was on vacation in Hawaii, Markkula called together the top managers to ask if he should be replaced. Most of them, including Jobs and John Couch, said yes. So Markkula took over as an interim and rather passive president, and Jobs found that he now had full rein to do what he wanted with the Mac division.
a long-distance call to go through without extra charges. The article revealed that other tones that
served to route calls could be found in an issue of the Bell System Technical Journal, which AT&T
immediately began asking libraries to pull from their shelves.
As soon as Jobs got the call from Wozniak that Sunday afternoon, he knew they would have to get
their hands on the technical journal right away. “Woz picked me up a few minutes later, and we went
to the library at SLAC [the Stanford Linear Accelerator Center] to see if we could find it,” Jobs recounted.
It was Sunday and the library was closed, but they knew how to get in through a door that was rarely locked.
“I remember that we were furiously digging through the stacks, and it was Woz who finally found the journal
with all the frequencies. It was like, holy shit, and we opened it and there it was. We kept saying to ourselves,
‘It’s real. Holy shit, it’s real.’ It was all laid out—the tones, the frequencies.”
Wozniak went to Sunnyvale Electronics before it closed that evening and bought the parts to make
an analog tone generator. Jobs had built a frequency counter when he was part of the HP Explorers
Club, and they used it to calibrate the desired tones. With a dial, they could replicate and tape-record
the sounds specified in the article. By midnight they were ready to test it. Unfortunately the oscillators
they used were not quite stable enough to replicate the right chirps to fool the phone company.
“We could see the instability using Steve’s frequency counter,” recalled Wozniak, “and we just
couldn’t make it work. I had to leave for Berkeley
the next morning, so we
decided I would work
on building a digital
version once I got there.”