neazoi
Advanced Member level 6
Hi I have a small "can" square wave oscillator at 3.5MHz and I want to rectify it's output with a series diode (1n914) and after that a shunt capacitor (100nF) to the ground.
When I measure with the multimeter I get a 1.2v DC out of the diode, when the RF out of the oscillator is 2.8vpp as measured in the 1M probe of the scope.
The problem is that when I connect a shunt resistor of even 10k parallel to the shunt capacitor, so as to load it, I get only 100mV or so.
I also tried to replace the 100nF with a 4.7uF ans I get only slighter voltage.
What am I doing wrong?
When I measure with the multimeter I get a 1.2v DC out of the diode, when the RF out of the oscillator is 2.8vpp as measured in the 1M probe of the scope.
The problem is that when I connect a shunt resistor of even 10k parallel to the shunt capacitor, so as to load it, I get only 100mV or so.
I also tried to replace the 100nF with a 4.7uF ans I get only slighter voltage.
What am I doing wrong?