Do It Yourself (DIY) paradise for tube and SET project builders.
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Posted on May 23, 2022 at 23:33:34 | ||
Posts: 22597
Location: SoCal Joined: October 19, 2008 |
I'm studying to take my Ham Radio Technician exam. This is the 'entry' level test of 35 questions. Next level 'up' is the General. Today, just for grins I took the general 'practice' test. I scored a 26 of 35 which had it been 'for real' would have been a passing score. But ONE question? Kind of made me smile and I knew where to go. Here's the question. What is the primary purpose of a screen grid in a vacuum tube? A. To reduce grid-to-plate capacitance B. To increase efficiency C. To increase the control grid resistance D. To increase the plate resistance..... I got it right purely on guess...... In my practice tests / studying for my Technician, I'm comfortably at 30 or more correct of 35 which is well above passing...... Too much is never enough |
Answer A, posted on May 24, 2022 at 00:55:55 | |
Posts: 267
Location: Roma Joined: January 27, 2021 |
In order to reduce the Miller capacitance. Omnes feriunt, ultima necat. |