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marvellous

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  1. Thaks again! Do you know of a DIY Field Strength Meter & DIY Antenna you could recomend? ??? What do you think of this one? http://www.geocities.com/tomzi.geo/antenna/antenna.htm I made my own Heatsink that clips on (with heatsink grease) ;D Thanks in advance!
  2. My project mesures 134ma from the battery I have just canged my L2 to 1M 2w and 15turns of 0.2mm(insulated) also changed R3 to 47e 2W changed Q1(T1) to 2n2219 changed Battery to powersupply(lm317 based 2A transformer)set @ 15V now Q2(or T2) is getting verry hot Q1(or T1) is just warm Signal is stronger and better quality! would Field Strength Meter http://braincambre500.freeservers.com/field%20strength%20meter.htm work for tuning? (We can Use Cellphone for communication) would the antenna http://braincambre500.freeservers.com/open%20end%20half%20wave%20dipole%20antenna.htm work for this project? Thanks the help I'm getting is appreciated! :) ;) :D8) ;D (only to think I nearly gave up on this project!)
  3. Thanks for the reply I got my circuit working (C4 was broken) I Can transmitt to radio but none of the transistors get hot ??? (ran it without heatsinks on both transistors) also the range is short about 5meters I used a 4.5Ah 12v battery for powersupply! I used a 2n2222a for t1 I used a 30Cm 1.5mm wire for antenna (soldered onto the Pcb) Will try your suggestions today for it and keep you posted on it! can I use 0.2mm insulated wound around a 1Meg resistor Thanks in advance!
  4. I used a Cd Walkman also for t1 I used a 2n2222a for the windings I used insulated wire o.7mm dia thanks! 8)
  5. The circuit is not working ??? http://www.electronics-lab.com/projects/rf/021/index.html (thats the one ive built) I've tried all tips I got but no transmission! Maybe I shoult try another Ciruit! Thanks for the help anyway 8)
  6. Thanks!4 the help ;) :D :-* will keep you posted!
  7. Thanks Thats a Lot Of Help Someone else Please! ;D
  8. Im a newB & im Busy Building the http://www.electronics-lab.com/projects/rf/021/index.html and have a couple of questions? ??? How do I make the Inductors do I use Enarmelled (insulated)Wire or Do I Just use Bare Wire? Should My windings be spaced apart or should ther be close together? Is it possible to substitute 2n2222a for T1 Thanks in advance! :) ;) 8)
  9. i am building http://www.electronics-lab.com/projects/rf/001/index.html and i would like to know do I build the RFC1, RCF2, RCF3 or do you buy it off the shelf? (cant find it here in South Africa) can I just buy the bead and make it?(what kind of wire would I need) I'm a Newb in RF electronics! Thanks in advance!
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