A Real Example of Continuing Professional Development
Continuing professional development for STEM related subjects is important for individuals, companies and the economy.
This article covers the major CPD steps of the author and is illustrated with a sequence of simple cartoons.
Dates are very approximate and the cartoons and associated content are personal landmarks, but they also represent major technological developments.
Some educational consequences of profound and rapid technological change are summarised at the end of the article.
-Typical Pentode Details
- pen means 5, 5 active pins
||Voltages and currents are typical
||Current = Anode Current+ Screen Current
||6.3V a.c. rms
||200mA a.c. rms
||Requires 2 pins
Data based on EF86 supplied by Mullard.
Typical power consumed by a single pentode is about 1.9 Watts
Vacuum tube types: diode , triode , tetrode , pentode.
Each tube type has a heater, which boils off electrons from the cathode.
This poses vital and important questions for educationalists:
How de we teach these rapidly changing technologies ?
How do we use these rapidly changing technologies in our teaching ?
How do we keep up to date?