- #1
ramonegumpert
- 187
- 0
Hi Experts :!),
I tried to use a 5v dc voltage source to power a normal handheld 3v radio using a resistor to regulate the voltage.
The voltage drop across the resistor seems to fluctuate constantly by about +/- 0.8 volts.
So, the voltage drop across the resistor fluctuates between 1.5v to 2.3v. The reception sounded bad like with intermittent noise. It seems that I could not get a constant 2v drop across the resistor to provide the 3v(2 x AAA) needed by the radio. When I use the batteries, the radio performs normally.
I could not understand why the voltage drop was not constant when the volume is kept constant and the why using the batteries the radio works normally.
Thanks in advance.
sincerely
Ramone
I tried to use a 5v dc voltage source to power a normal handheld 3v radio using a resistor to regulate the voltage.
The voltage drop across the resistor seems to fluctuate constantly by about +/- 0.8 volts.
So, the voltage drop across the resistor fluctuates between 1.5v to 2.3v. The reception sounded bad like with intermittent noise. It seems that I could not get a constant 2v drop across the resistor to provide the 3v(2 x AAA) needed by the radio. When I use the batteries, the radio performs normally.
I could not understand why the voltage drop was not constant when the volume is kept constant and the why using the batteries the radio works normally.
Thanks in advance.
sincerely
Ramone
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