Driver Transistor Amplifier. Be very careful that you keep the current and voltage within the device ratings. The rotary switch on the supply is designed for just this purpose.
The rotary switch on the supply is designed for just this purpose. Its function is a driver amplifier to boost up a signal from the preamplifier section. In general you use multiple stages of transistor amplification driver is just a particular case of this whenever you cannot get the required power gain voltage gain current gain in a single stage while simultaneously meeting other requirements such as input and output impedances as well as voltage and current swings.
To more power to drive the q3 runs well.
The rotary switch on the supply is designed for just this purpose. Its function is a driver amplifier to boost up a signal from the preamplifier section. For driver transistors the 100 ohm range would be satisfactory and for small signal transistors use the 1k ohm range. These products support frequencies up to 46 ghz using process technologies such as ingap hbt power phemt e d phemt and gan.
