AM Radio Question, Diagram included - Electronic Circuits Projects Diagrams Free

phoenixy · 29th November 2003, 03:58 AM

Hi, the attachment contains a diagram of the AM radio circuit we built for a lab

I have a question about Figure 2 Section 3. From what I understand, audiable information is encoded as amplitude of a low frequency signal. This signal "rides" on the broadcasted high frequency signal. Sectopm 3 is a low-pass filter that filters out the high frequency.

Here is the question: for the 0.1uFD capacitor, what will be the optimum resistor value? Why?

My text book has example of low pass filter, but it's a RC circuit in series. I don't know how a parallel RC circuit will behave

Thanks for any suggestion

Tuppoone · 29th November 2003, 08:56 AM

I need to know the wiring diagram of electronic viewfinder type VF-240 that of a Sony Handycam model CCD-V30E,especialy the port between the camera and the viewfinder.Thank you.

phoenixy · 29th November 2003, 09:59 PM

Oh man, I didn't realize that my pdf attachment is rejected

here it is!

Roff · 30th November 2003, 06:11 AM

See my reply here.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

29th November 2003, 03:58 AM	#1
phoenixy	AM Radio Question, Diagram included Hi, the attachment contains a diagram of the AM radio circuit we built for a lab I have a question about Figure 2 Section 3. From what I understand, audiable information is encoded as amplitude of a low frequency signal. This signal "rides" on the broadcasted high frequency signal. Sectopm 3 is a low-pass filter that filters out the high frequency. Here is the question: for the 0.1uFD capacitor, what will be the optimum resistor value? Why? My text book has example of low pass filter, but it's a RC circuit in series. I don't know how a parallel RC circuit will behave Thanks for any suggestion

29th November 2003, 08:56 AM	#2
Tuppoone	wiring diagram of electronic viewfinder I need to know the wiring diagram of electronic viewfinder type VF-240 that of a Sony Handycam model CCD-V30E,especialy the port between the camera and the viewfinder.Thank you.