Modulator in Sci.Electronics.Basics

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Sci.Electronics.Basics
Sci.Electronics.Basics is a worldwide Usenet news group for discussion of electronics where there is no such thing as a stupid question. Beginners questions. Discussion of electronics education. Requests for other sources of information.

We found 51 threads matching "modulator"
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We found 51 threads matching "modulator".

Re: Switch terminology?
Lord Garth - 20:15 15-03-07
"Esther & Fester Bestertester" wrote in message news:0001HW.C21F291D0013AE32F01826C8@news.sf.sbcglobal.net... > > What is it you are trying to design? Maybe we can sugges... Read More
Circuit diagram of AM Modulator based on triode valve/tube
Robert Wilson - 07:42 07-01-07
Hello, I would like to find a circuit diagram of an AM Modulator scheme based on a Triode Thermionic valve/tube. I have a SPICE package that has a Triode valve as a component... Read More
Re: From 12V DC to 5+ V DC How to?
default - 11:20 25-08-06
On 25 Aug 2006 02:15:12 -0700, trezaei@gmail.com wrote: > Will this work? > > http://www.grandhobby.com/25aelbrescsp.html Probably no That is a good "cheap and dirty" w... Read More
Re: fm radio
Homer J Simpson - 14:48 13-01-07
wrote in message news:1168708094.280014.240470@11g2000cwr.googlegroups.com... > thanks for the replay.. > can you tell me the exact construction of the transmitter cir... Read More
Re: Interesting Tesla coil
Rich Grise - 21:36 06-07-07
On Thu, 21 Jun 2007 08:29:29 +0000, steamer wrote: > --Would be interested to know more about how this thing works; i.e. > would a desktop version of it be as ...vocal? > ... Read More
Re: modulation
jasen - 17:58 15-09-06
On 2006-09-15, gopal_219@rediffmail.com wrote: > does r/f input ,audio input willmake modulation? if it's a modulator, yes. > whati s the range of r/f input? I can't... Read More
Re: signal generator circuit
Phil Allison - 22:50 05-02-07
"kell" > > the multivibrator doesn't necessarily have to run at the signal > generator's intended output frequency. Check this out: > http://www.electronic-circuits-diag... Read More
Re: Amplitude-Modulation Synthesis
Bob Masta - 09:01 12-09-06
On 11 Sep 2006 20:43:20 -0700, "Radium" wrote: > Hi: > > I know of many types of synthesis for music. I am curious about two > types -- FM and AM. > > Does FM synthesi... Read More
Re: Cable box + cable feed
Sjouke Burry - 12:50 14-01-08
reqluq wrote: > "AJ" wrote in message > news:-86dnf97W65iiBfanZ2dnUVZ_uCinZ2d@comcast.com... > > Are you connecting the cable through a splitter then to the tele and cabl... Read More
Re: RF to optical converters
John Larkin - 23:59 27-04-07
On 27 Apr 2007 13:28:19 -0700, "mike7411@gmail.com" wrote: > I was wondering if someone can help point me towards some information > on how RF to optical converters and vic... Read More
Re: Frequency vs Phase modulation
Andrew Holme - 05:20 17-12-06
"Rich Grise" wrote in message news:pan.2006.12.17.00.10.21.192546@example.net... > I was just sitting here ruminating, and remembered something I'd read > in some Ham mag... Read More
Re: What type of bulb to use with my color organ ?
Jamie - 19:12 04-02-08
sku_dave wrote: > I'm making a kind of light tower with 2" clear acrylic rod (3x 6' > tall), and putting lights underneath that'll be plugged into my color > organ to react t... Read More
Re: Audio Up/Down Conversion
Jamie - 20:17 08-06-07
Sjouke Burry wrote: > BobaMosFet wrote: > > > On Jun 8, 10:47 am, John Fields wrote: > > > > > On Fri, 08 Jun 2007 05:15:51 -0700, BobaMosFet > > > > > > wro... Read More
Re: FM stereo transmitter?
Joerg - 19:54 05-12-06
Bob Masta wrote: > Here's the scenario: I'd like to be able to > play an audiobook on my living room stereo > where my wife would be listening as she > works on her proj... Read More
Re: Varying a pen laser voltage with audio signal how? tia sal2
ehsjr - 14:21 26-03-07
John Fields wrote: > On 26 Mar 2007 10:19:36 GMT, jasen wrote: > > > > On 2007-03-25, John Fields wrote: > > > > > > > Other than physically moving the laser ba... Read More
Re: I am building a simple FM radio transmitter
Rich Grise - 15:15 10-04-08
On Thu, 10 Apr 2008 18:47:26 +0100, Aly wrote: > "qoo" wrote in message > news:d896bc63-127c-4dcb-962c-3ce5f89bcfca@s13g2000prd.googlegroups.com... > > Well, its not so s... Read More
Re: Why is video inverted for transmission?
Don Pearce - 12:17 24-09-07
On Mon, 24 Sep 2007 10:09:03 -0600, "Bob Myers" wrote: > > "Don Pearce" wrote in message > news:46f84f4c.223678671@news.plus.net... > > You are talking about the si... Read More
Re: Wanted: Capstone Project Suggestions
Rich Grise - 19:09 12-09-06
On Tue, 12 Sep 2006 14:22:01 -0700, fcache wrote: > > I'm taking a non-calculus based Electronics I course at a local > community college using Malvino's text, _Electronics ... Read More
Re: How do you make a closed signal loop?
John Larkin - 22:40 09-09-06
On 8 Sep 2006 21:30:01 -0700, calcat@fastmail.fm wrote: > Hi Everyone, > > Is it possible (in theory) to capture a signal in a closed loop, > keeping the signal stable and p... Read More
Re: Replace magnetic with optical
Sam Goldwasser - 13:24 06-04-07
"Fleetie" writes: > BogusID wrote: > > What about a 3 dimensional media, like an optical version of the old bubble magnetic memory with X/Y/Z read/write vectors? > > P... Read More
Re: How is the amplitude component of an audio signal encoded in an FM signal?
00:30 15-12-07
On Dec 14, 9:19 pm, wrnchb...@hughes.net wrote: > In the given explanations of basic FM that I have read, I can > understand how a single audio tone modulates the carrier fr... Read More
Re: troubleshooting steps
Bob Myers - 14:16 01-10-07
"Roy" wrote in message news:lq02g35opt2f4l4vpd9lqq6j2o0ktqh6s8@4ax.com... > This is a wide open question and I expect I'll get alot of varying > opinions, but here goes.... Read More
Re: How does this circuit work? Is it a pre-amp?
Bob Masta - 08:07 04-07-07
On Tue, 3 Jul 2007 23:21:10 +0100, "Andrew Holme" wrote: > > The circuit is an FM transmitter. U7A is an isolating amplifier. The 1nF > capacitors are there to preve... Read More
AM electromagnetic waves: 20 KHz modulation frequency on an astronomically-low carrier frequency
Radium - 22:41 29-06-07
Hi: Please don't be annoyed/offended by my question as I decreased the modulation frequency to where it would actually be realistic. I have a very weird question about elect... Read More
Re: My favorite analog audio storage = B&W variable-density optical track of old films
John Larkin - 23:28 09-04-08
On Wed, 09 Apr 2008 19:38:00 -0700, "Green Xenon [Radium]" wrote: > John Larkin wrote: > > On Wed, 09 Apr 2008 18:27:04 -0700, "Green Xenon [Radium]" > > wrote: > > ... Read More
Re: What exactly is a four symbol pulse?
23:30 21-11-07
On Nov 18, 11:30 pm, MRW wrote: > Hi! I'm reading this article:http://www.broadcast.net/~sbe1/8vsb/ 8vsb.htm > > I'm trying to get myself familiarized with Digital TV... Read More
Re: Generation of Ultrasound in the Megahertz region
redbelly - 21:18 31-03-07
On Mar 30, 9:46 am, "Joe" wrote: > Hello to the group, > > Does anyone know how I could generate sound waves in the Megahertz > region? I would like to do a demonstratio... Read More
Re: reliably testing diodes in circuit ?
Dave Platt - 11:27 17-11-07
> while checking diodes **in circuit** with diode setting on DMM > > i ran across a unexpected results where diode test at (.567 V) in > one direction then swap probes around... Read More
Re: Scanning for a bug..
Michael Black - 00:22 23-01-07
"Michael A. Terrell" (mike.terrell@earthlink.net) writes: > BobG wrote: > > > > The KGB had a mole at the construction site of the US embassy in Moscow > > and they filled... Read More
Re: Laser diode module and audio amplifier tia sal2
default - 17:28 07-01-08
On Mon, 07 Jan 2008 17:00:37 GMT, sal2 wrote: > Laser diode module and audio amplifier tia sal2 > > Greetings All > > I have a laser diode module with the datasheet of ... Read More
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