savvej
Member
The FM transmitter circuit is from :
http://talkingelectronics.com/projects/Wasp/Wasp-P1.html
I build it on a PCB as is mentioned.I also built RF led power meter from :
http://talkingelectronics.com/projects/Wasp/Wasp-P4.html
I used it to check whether the oscillator section is working and the led of the meter light up at the collector of the transistor of the oscillator stage indicating that the oscillator is working.
But I am getting no output from the 3rd transistor i.e. the rf output stage.
I checked the transistor(2n2222A) and it is working.Also I checked the volatges as per given on troubleshooting page
http://talkingelectronics.com/projects/Wasp/Wasp-P2.html
and the voltages at the base is 0.62V and at the collector is 3.4V which I guess is okay if I consider a 5V supply.
Also one more thing when I connect the RF led power meter at the base of this (output)transistor I am not getting any output.Neither at the emitter of the oscillator transistor am I getting any ac output..
Should I connect instead of the emitter,the collector of the oscillator section to the rf output stage? or is there some other problem?
Please help me.
I heard that collin55 the author of this circuit is too a registered electro-tech-online user.I wish if he could comment on the same.
http://talkingelectronics.com/projects/Wasp/Wasp-P1.html
I build it on a PCB as is mentioned.I also built RF led power meter from :
http://talkingelectronics.com/projects/Wasp/Wasp-P4.html
I used it to check whether the oscillator section is working and the led of the meter light up at the collector of the transistor of the oscillator stage indicating that the oscillator is working.
But I am getting no output from the 3rd transistor i.e. the rf output stage.
I checked the transistor(2n2222A) and it is working.Also I checked the volatges as per given on troubleshooting page
http://talkingelectronics.com/projects/Wasp/Wasp-P2.html
and the voltages at the base is 0.62V and at the collector is 3.4V which I guess is okay if I consider a 5V supply.
Also one more thing when I connect the RF led power meter at the base of this (output)transistor I am not getting any output.Neither at the emitter of the oscillator transistor am I getting any ac output..
Should I connect instead of the emitter,the collector of the oscillator section to the rf output stage? or is there some other problem?
Please help me.
I heard that collin55 the author of this circuit is too a registered electro-tech-online user.I wish if he could comment on the same.