To Nigel If my QUESTION was that simple. I got less than a answer from this forum. on a simple electronics circuit question as stated in your answer. Some people state they know about electronics but tell you some thing else. Because they have no expertise in that feild. Any R/C electronics expert would of gave me a much much more advise or show me what parts in the output power stage of Q2 in the transmitter schematic. in the website i provided www.elenco.com.us. I didn't want to redesign the circuit just change the output stage to give me more output power and what parts to use. Or add to the circuit. This is not a complicated circuit for a experience electronics expert. it seems like everybody talks like they know it all. but i guest not. but thats your choice on this forum. its not the suitable DIY design i would fine. Its the suitable expert i will not find. And to tell me to go out and buy a proper radio control system for a model car instead. of the one i bought. Tells me my answer about these so call electronics experts on this forum. THESE R/C CAR ARE NOT CHEAP. THESE COMMERICAL PROFESSIONAL HOBBY IS NOT CHEAP. TO START a car or tuck can cost $200 and up plus battery charger,plus battery packs,plus (esc) electronic speed control circuit,plus the the radio control transmitter RX ,plus servos. ect ect. cheap one. yeh right. minimum $300-up to $1000 or more. even a used one will cost you Maybe $150. the kind i use at this is form RADIO SHACK $2O-$99. MAYBE THE JUCK ON EBAY THAT YOU DON'T know what you're get. maybe you know a soruce to get these real cheap ones as you stated for the professional r/c cars for under $99. Because I don't have your big bucks to spend on your, so call cheap ones. :cry:
I just finished looking at toy car receivers on Google to confirm my suspicion that your "crude" receiver is just a single-transistor super-regenerative one. The IC in the receiver only decodes the demodulated pulses. Since super-regen receivers are easily overloaded, I advise you not to increase transmitter power. Sorry. :cry:cyberquest said:just a crude receiver, can you help.
cyberquest said:THESE COMMERICAL PROFESSIONAL HOBBY IS NOT CHEAP. TO START a car or tuck can cost $200 and up plus battery charger,plus battery packs,plus (esc) electronic speed control circuit,plus the the radio control transmitter RX ,plus servos. ect ect. cheap one. yeh right. minimum $300-up to $1000 or more. even a used one will cost you Maybe $150. the kind i use at this is form RADIO SHACK $2O-$99. MAYBE THE JUCK ON EBAY THAT YOU DON'T know what you're get. maybe you know a soruce to get these real cheap ones as you stated for the professional r/c cars for under $99. Because I don't have your big bucks to spend on your, so call cheap ones. :cry:
GTAman said:That car is a kit sold from elenco
it is about $26:00 dollars or in that range.
If you were to replace the electronics with the expensive rc, you would be at a total of around 75 to more for a rc car.
I think he want's a cheap way to do it and also
it still would not get a range of a 1000.
Most likely only 300.
So there is no way that he could get that range.
To GTmann .Sorry if i got your name wrong. But you hit the nail on the head. It seems like you know something about R/C cars this is what i wanted to do. Use a less exspensive car and hop-up the output power.to get a farther range. but it looks like this circuit in my transmitter is set and designed for a lower power with the parts they used. i could increase the gain for a higher power output just a little bit. but this would or could over load the circuit. As stated by audioguru, nigel,. I have not try it . One more thing I forgot to mention is the cars i witness that when over 300ft-up to 1000ft max. They did use a modified r/contoller that was made to go 300ft, and they did use a high range camara on there vehicle.This is what i like to do my self, on my uncles land where I live to ride around the land with out looking at the vehicle. This is something I would like to experiment with. Who wants to go 50ft in circles its borring. Try it some times. How could I get a decent radio controller and modified the circuit to increase the range to the distance of 1000ft. which is what i want. 1300ft is the max alouded by the FCC PART-15reg -law here in the states at 100mWatts. can you help. do you know of a circuit i could use. can anybody help.To Nigel the prices i got are form R/C websites. Only the cheapest r/c 2 channel radios plus servos (new). might cost $50-and up and thats just the radio equipment only. not everything else. those cars are set up to work with servos and other equipment , and they are real professional cars. and cost alot.There not cheap. THE R/C CARS from radio shack are not consider really professional r/c cars and from what i know don't use servos,esc,ect..and other equipment. radio shack cars cost $20- $100 because they use just gears to turn the motors in these cars they don't use fancy electronic equipment to control these cars. Thats why there's two types of R/C cars and there prices. The car that i bought does not work with servos or any fancy electronic equipment so if i was to change and pull out the electronics and use the better radio controller it wouldn't work any way.My car is not designed for a car that would use servos esc, battery packs, ect ect. I would have too buy a new car and everything else for that car to work with a new radio controller system.to buy a decent car or R/C truck or kit will run you $150-up thats just for the car notting else,and than you have to buy everything else. Notting comes with the car or trucks. unless you buy a (RTR) ready-to-run car or truck they will run you minimum $279-up a decent car or truck. not used. (new).
= audioguru i found out in one of your replies you stated that the car you bough for your son can go 400ft and when it went that far it when out of control. I found out the reason why it done that is because it did not have a device in the circuit called a (ESC) electronic speed controller which a professionl R/C car would have had. So when the car gos out of the range between the TXand RX this device stops the car from going out of control. Most all professional cars are equiped with this device.And the car that your son has must of cost originally 2-3 time the cost before the after Xmas sale.I don't know what you payed for the car or brand it is. But it sounds like a nikko, or tyco which some of there cars can go 300ft mybe more. Can these cars be modified to get a higher output power for a farther range. You stated your sons car could have a better TX andRX. It might be a HPI BRAND WHICH ARE LIKE RADIO SHACK BRAND BUT MUCH MUCH BETTER. what brand is your sons car. and how do you know your sons car went 400ft. I like to know. thanks to every one.PS like to know what you think. 8)
cyberquest said:but it looks like this circuit in my transmitter is set and designed for a lower power with the parts they used. i could increase the gain for a higher power output just a little bit. but this would or could over load the circuit.
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