carebare47
- Oct 21, 2010
- 66
- Joined
- Oct 21, 2010
- Messages
- 66
Hello,
I am currently trying to build a Theremin. I am using someone elses design, I have parts lists sorted out and am almost ready to try and get a prototype working. Being a bit of a novice still I am unsure on what type of capacitor to use for the output of the audio amplifier stage of the theremin. The circuit diagram for the audio amplifier stage can be found here. The capacitor in question is the 1000uF non-polarised one by the output of the op-amp. I don't know much about capacitors, but are non-electrolytic capacitors made that large? Could I use a non-polar or bipolar electrolytic capacitor? I have ran the circuit in multisim (a simulation program) and there appears to be about 11V DC before the capacitor (and no apparent DC offset before it), so it looks important. Any help would be greatly appreciated.
Many thanks,
Tom
I am currently trying to build a Theremin. I am using someone elses design, I have parts lists sorted out and am almost ready to try and get a prototype working. Being a bit of a novice still I am unsure on what type of capacitor to use for the output of the audio amplifier stage of the theremin. The circuit diagram for the audio amplifier stage can be found here. The capacitor in question is the 1000uF non-polarised one by the output of the op-amp. I don't know much about capacitors, but are non-electrolytic capacitors made that large? Could I use a non-polar or bipolar electrolytic capacitor? I have ran the circuit in multisim (a simulation program) and there appears to be about 11V DC before the capacitor (and no apparent DC offset before it), so it looks important. Any help would be greatly appreciated.
Many thanks,
Tom