Megan is me...:
Whole breadboard showing 12V rail.
Megan is me...:
Whole circuit showing 12V rail.
Megan is me...:
Vertical shot for 5V regulator.
Megan is me...:
Close up of 5V regulator.
Megan is me...:
Vref for op-amp coming from 5V via 104 trimpot.
Megan is me...:
Output of 3V adjustable regulator, set for 2.25V.
Megan is me...:
Drop on the current limiting resistor for the filaments.
Megan is me...:
Voltage going to grids and anodes.
Megan is me...:
Close up of 3V adjustable regulator.
Megan is me...:
Close up of transistors and filter cap.
Megan is me...:
Close up of switching circuit.