However, variations using some form of active current source or load, not considered a gain stage, are used.
An example for a current source is shown in the figure on the right.
The modern successor to this device is the current source.
However some voltage spikes may be created by current sources.
Later the designer's son marketed the plans and this is the current source.
The internal resistance of an ideal current source is infinite.
No current source is offered for the estimate of 90,000 slaves.
Similar reservations apply to other current sources of safety information.
The challenge is to maximize its current sources of revenue.
Heaters require a low voltage, high current source of power.