| We have been living in the electronic age for well over a century now, since the invention of the triode by Lee de Forest in 1907. Roughly s...
Martin Beusekamp (3)
| The Historical Study Collection of the Faculty of Electrical Engineering, Mathematics & Informatics (EWI) at the University of Twente [1] in...
| My collection of test equipment includes a Hewlett-Packard HP650A Test Oscillator. That model was launched in 1948, but the relatively high...