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can somebody send me an article about what is HAM radio? i've tried finding but there is no article specifically about ham radio. i want an introduction about ham radio
hi everybody,
i need a favor, can somebody tell me how to calculate the input and output matching network of this circuit. i don't know how to do it. or can somebody calculate it for me, pls.. i also need to know wht is the inductance of L1 and L2, and also Dr2. i don't know how to calculate...
hi everybody,
can somebody tell me why this circuit is identified as a AB Class power amplifier?
can somebody tell me the characteristics of a AB class PA? what is the differents between AB class and the other classes. i really need to know this. pls help me out.thank you.The circuit is in this...
hi everybody,
what is the function of C6, C5,C4 and C3. can somebody help me out here. i really need help on this. please go to this link to see the circuit.
questions on PA circuit
hi everybody,
i'm designing a 2meter band amateur radio power amplifier, i'm not sure of the exact function of the vhf choke in this circuit. could somebody explain to me. i also want to know which is the input network and output network? they have used two copper wires...
explanation of circuit
hi everybody
i'm goin to built this amplifier. i hope anybody out there could help me by telling me what is the function and use of the vhf choke and every other components on this circuit. i need a detail explanation on the functions of component and how this circuit...
i've completed this circuit, now i'm testing it. will i be able to measure the output power if i don't give a rfin signal. if yes, how do i do it? the link to the circuit is below. thank you
hi there,
can somebody tell me what is this port1, port2, port3, port4. i'm confuse which port is the power supply, is it port 1 or port 2.. or both are power supply ports. there was a phrase in this document stating
"The amplifier is keyed by applying 28 V to R1, this turns on the transistor...
pls help
hi everybody,
i'm havin trouble with this circuit. can somebody explain to me where is the power supply suppose to be for this circuit. there is one port called key +28v and another port which states 28v. which one is the correct positive power supply port. then can i know where is...
hi everybody,
i'm designing a 2 meter band PA using this circuit. pls suggest to me what software to use to simulate this circuit on the pc to get results. i also need to know what type of wire i need to use for the power supply input that 28v. should the wire be very thick. i'll also like to...
hi there.
anybody outthere who can help me get some components. i'll like to get some MRF317 or BLW77 transistors. this transistors are not available in my country. anybody out there can help me get it, pls reply me. i'll pay for the transistors. thank you
mrf317
hi ther,
i've gotten the equivalent of MRF317 transistor from the edaboard earlier, i just want to know wheter this equivalent of MRF317 transistor that is BLW96, BLW77,BLW33, 2SC2782 and 2S3326 transistors can be used to replace the MRF317 transistor in this circuit below. i need the...
what is the equivalent transistor for mrf317. try to give me a non mrf equivalent, because mrf transistors are hard to get in my country.if anybody has mrf317 transistor, pls let me know. thank you
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