Posts by Dr. Allen F. Bortrum

Evaluating lithium batteries for Bell System applications; a trip behind the Iron Curtain

Brighter LEDs; Slaphappy in Grenoble; Demotion leads to lithium

Bortrum describes life after the freak snowstorm

Reluctant move from research on LEDs to developing them

Personal experiences with Irene; work on LEDs at Bell Labs

Solubility of arsenic in germanium leads to a patent mystery

Studying impurities in germanium and silicon; who made the first silicon transistor?

How not to start a career at Bell Labs

A "Humph" from boss at NACA leads to Bell Labs interview

What to do without a cyclotron?