The way I understand it, The infinite impedance detector is a device such as a tube or FET that normally draws output current unless reversed biased. The device is reversed biased to cutoff and then input signal turns it on like class B service but the input does not draw current. The output is taken from the cathode, or source in the case of a FET, in follower fashion.
I am not sure how this is going to correct the slew distortion that is caused by the RF filtering and discharge rate of the output. Perhaps it is because of the follower effect of having a low Z output with no diode at the output. This may mean that the discharge is at the same rate as the charge? I'd be interested to see what you come up with Jim. There are several circuits on the internet (Google "infinite impedance detector"). I have never played with this. John Coleman, WA5BXO -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim Tonne Sent: Wednesday, September 03, 2008 7:56 PM To: Discussion of AM Radio in the Amateur Service Subject: Re: [AMRadio] Diode demodulator appnote Agreed. Send me a schematic of such and I will see if I can run it through the analysis routines. - Jim Tonne WB6BLD TonneSoftware.com ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/[email protected]/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
