/diy/ - Do It Yourself

>>1689641
what the shit?
i built the circuit to test it out, it's same as in the schematic, except i replaced the op amp with a simple diode for now which should cut off the bottom part of the sine wave and give me only the positive half sine
Except it doesn't!
I hooked up a scope to check it and
Output before the diode: a sine with 1.6 to -1.6V amplitude
Output after the diode: a sine with 1.4 to -1.4V amplitude
If there wasn't that voltage drop i would think i got chinked on the diodes and they are just a piece of wire inside.