ka2zev
12-18-2011 003
Got a 'wild hair' to modify my good old solid state test load.
Face it. The unit was byond butt ugly.
The case had melted from use.
Time for a change.
Made up a new box.
The knob dials up the load current.
The yellow switch selects between a high range and a low range.
The pin jacks monitor the voltage drop across a .1 ohm resistor.
So if Im showing a volt across the resistor, that indicates ten amps draw.
The dual bannana jack is the DC input to the fans on the left and right of the case.
One draws outside air through the case, and under it, the other is pushes this air out.
The unit sits flat on the bench to make a kind of plenum around the transistor cases.
12-18-2011 003
Got a 'wild hair' to modify my good old solid state test load.
Face it. The unit was byond butt ugly.
The case had melted from use.
Time for a change.
Made up a new box.
The knob dials up the load current.
The yellow switch selects between a high range and a low range.
The pin jacks monitor the voltage drop across a .1 ohm resistor.
So if Im showing a volt across the resistor, that indicates ten amps draw.
The dual bannana jack is the DC input to the fans on the left and right of the case.
One draws outside air through the case, and under it, the other is pushes this air out.
The unit sits flat on the bench to make a kind of plenum around the transistor cases.