1. A common mnemonic is ACID for " anode current into device ". 2. The ( copper ) anode current collector can dissolve into the electrolyte. 3. In an IGCT, the gate turn-off current is greater than the anode current . 4. A relatively small variation in voltage on the control grid causes a significantly large variation in anode current . 5. Vacuum devices have a near constant anode current for a given level of illumination relative to anode voltage. 6. It also results in higher transconductance, which is a measure of the anode current change versus grid voltage change. 7. This involved use of a resistor from the cathode to ground, which provides better control of anode current through negative feedback. 8. "In short the anode current is controlled by the electrical potential ( voltage ) of the first grid ." 9. Although the capacitance is small, around 500 pF, due to the low anode current it is sufficient to act as a filter capacitor. 10. The screen found in tetrodes and pentodes, greatly increases the valve's gain by reducing the effect of anode voltage on anode current .
