I am using the following circuit which receives a DC voltage from a transformed and filter capacitors. I am getting a problem of the voltage changes.

Here without load the potentiometer input coming from the regulator is practically giving:

Without load the voltage I am getting across the load is:

With load the input voltage to the potentiometer becomes:

This input voltage change is not that much but this has resulted in a large change of 2 V in the output which is 9.2 V.

I haven't changed the knob of the potentiometer and I have received an unusual change. What can be the reason. I have used the potentiometer shown below:

Kindly help me.

I am using the following circuit which receives a DC voltage from a transformed and filter capacitors. I am getting a problem of the voltage changes.

Here without load the potentiometer input coming from the regulator is practically giving:

Without load the voltage I am getting across the load is:

With load the input voltage to the potentiometer becomes:

This input voltage change is not that much but this has resulted in a large change of 2 V in the output which is 9.2 V.

I haven't changed the knob of the potentiometer and I have received an unusual change. What can be the reason. I have used the potentiometer shown below:

This is the complete schematic:

I am using the following circuit which receives a DC voltage from a transformed and filter capacitors. I am getting a problem of the voltage changes.  

Here without load the potentiometer input coming from the regulator is practically giving:  

Without load the voltage I am getting across the load is:  

With Load the input voltage to the potentiometer becomes:  

This input voltage change is not that much but this has resulted in a large change of 2V in the output which is 9.2V.  

I haven't changes the knob of the potentiometer and I have received an unusual change. What can be the reason. I have used the potentiometer shown below:

Kindly Help me.

I am using the following circuit which receives a DC voltage from a transformed and filter capacitors. I am getting a problem of the voltage changes. 

Here without load the potentiometer input coming from the regulator is practically giving: 

Without load the voltage I am getting across the load is: 

With load the input voltage to the potentiometer becomes: 

This input voltage change is not that much but this has resulted in a large change of 2 V in the output which is 9.2 V. 

I haven't changed the knob of the potentiometer and I have received an unusual change. What can be the reason. I have used the potentiometer shown below:

Kindly help me.