Amateur Extra › E7 Practical Circuits › E7B06
E7B06
What is a characteristic of a grounded-grid amplifier?
Pick an answer to check it.
Answer: B. Low input impedance
In a grounded-grid amplifier the signal drives the cathode, which presents a low input impedance. These amplifiers are stable and easy to drive but have relatively low power gain.
Tip: Grounded grid: low input impedance, cathode driven.