If students have not yet viewed the video Transistorized!, show the first ten minutes including Ira Flatow describing the vacuum tube and its drawbacks and discussing Mervin Kelly’s vision for a solid ...

As explained in Transistorized!, the invention of both the transistor and the vacuum tube grew out of the need to amplify weak electric current. Begin by demonstrating a weak current that students can ...

To help students better understand the transistor and its impact on technology, the documentary and Website Transistorized! is accompanied by this Teachers' Guide. It was produced by Twin Cities ...

The First Transistorized Computer . January, 1954: If transistors could replace vacuum tubes in the phone system, then they certainly could replace them in computers too.

1954: IBM builds the first calculating machine to use solid-state transistors instead of vacuum tubes. IBM already had a business selling calculating machines, and it was humming along quite nicely.

Transistorized cars of the future may eventually have ignition systems with no points at all to go wrong. Their pulses of current will be generated by rotating magnets, ...

Morris Tischler, a retired science teacher who invented a 1950s transistorized cardiac pacemaker, died of respiratory failure March 9 at his Pikesville home. He was 89. He was born in Newark, N.J ...

According to Sonotone, the semi-transistorized instrument gets twice the normal service out of an A-battery and makes a standard B-battery last six months instead of the usual three or four weeks.

Multiplier photo-cells normally require a high tension supply of the order of 1000 volts. This supply is usually obtained from the electricity supply mains by means of conventional rectifiers and ...