Ground means nothing to the oscillator. It's just a reference point from which to measure voltages. What matters is the impedance between pins 4 and 6. I simulated it, and it even oscillates in the simulation, which has zero ground resistance.

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Ron

 

newbie here!
i would like to ask how can i make that L1 or coil inductance?

 

The parts list tells how to make the coil. 6 to 8 turns of insulated hookup #22 wire around a pencil with the turns tight together. Carefully slide out the pencil and admire your coil.

__________________
Uncle $crooge

 

ummm, 30 meters? 30 miles? anyone know which it is??? Thank you guys

 

Fairly obviously, 30 meters!.

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PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

 

I'm a beginer in the electronic component and I wish to know more about that (any documentation or books).
So any one help me I will be very gratefull

 

kewl,, electronics is neat, you just have to surf the web or goto radio shack and get a learning lab for about $60.00... electronics uses capacitors, used to hold a charge, there sometimes round and tall, or small and looks like a paper ufo, then you have resistors, these are simulare to the led in a pencile, if you drawl a line with a certain type pencile and hook a ohm meter up to the line you drew, you can mesure the resistence of that line, the longer the line and less lead the more it resist. for example, a wire dont resist that much,,,,''Next you have your diode. in electronics you have a N type silicone and a P type Silicone, Positave + can only travel threw the P type, and Negative can only travel through the N type silicone, this stuff is man made, it is cooked, back to the diode.

if you hook a light to a battery and then it comes on, place a diode between the light and the battery, if done right, the light will come on, if you hooked the diode up backwards, it will block the current. since N Voltage cant travel threw a P type silicone,,, next you have a Transistor, they come in NPN or PNP its a silicone sandwich. you hook the light up to the transistor and the middle leg is the gate, or swith,, youd have to read up on the transistor to understand it more. then you have coils. you run a voltage threw a coil and it makes a wave, you unhook the volts from a coil and the volts rush out of the coil. so if you hook a ceramic cap to the coil you would have a oscilating circuit. google that! now try electronics in the howstuffworks.CCOOMM

 

What has this got to do with the topic title?

__________________

I do not answer private messages asking for help because no one else can: benefit from advice I may give or correct me if I'm wrong.

Please ask on the open forum if you have a question and I'll be happy to help, if I know the answer.

 

that was for Hlaim

 

Well, Triple Access has certainly given my poor old eyes a new outlook on electronics!

JimB

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Experience is directly proportional to the value of the equipment ruined.

 

Yeah, I now see I wasted 5 years of my life getting my EE degree.

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Ron

 

WOW, that lesson has enlightened me to the ultimate level that I just might retire to a high peak in Nepal, sitting endlessly in the Lotus position while postulating how the colors RED and BLACK came to be indicators of positive and negative. Must be a Yin/Yang thing. I wonder if they serve up "silicone sandwiches" in a Nepalese monastery?

To me "silicone sandwich" means my face burried between a couple of size D cups!!

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Don't make me reach through this monitor to slap you a good one!

 

The only thing I have ever learned from Radio Shack is that the sales people are often clueless, they spend more time ringing up a cash sale than it takes to mow a hilly 1 acre lawn using a push mower, returning an unwanted item for a refund is like trying to get Rowe v Wade overturned in Congress, I can locate the desired component on a peg or in a drawer faster than they can, and their advertising slogan, "You've got questions, We've got answers" equates to nothing more than me asking when they close for the day and they reply "We close at 8pm, but I might pack it in earlier if business remains slow."

__________________
Don't make me reach through this monitor to slap you a good one!

 

i knw this thread has been no move for a long time
but i would like to ask some question if you guys dun mind

i have connected all the components of the 1.5v tracking transmitter but my radio cant detect it...does anyone knw wats the problem with it?

 

Yeah - it's missing that damn emitter resistor like Scrooge pointed out on page 1.