RAMAN KAPOOR
New Member
can any body help me in making cordless mike
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audioguru said:1MHz AM?
100MHz FM?
How much RF power?
audioguru said:My FM transmitter works much better than all the toy transmitters on the web:
audioguru said:You must learn about electronics or you won't understand what I say about the circuit. When you know electronics then the circuit will be obvious.
Sorry, I don't have a parts list. The schematic looks clear. Which parts aren't clear to you?RAMAN KAPOOR said:give me the components list relevant to your circut . which are not clear in you circut
Thanks.beginner said:Nice schematic audioguru
A 7805 needs a minimum input voltage of about 7.5V. A 9V alkaline battery's voltage drops quickly to about 7.2V then a 7805 might not work. I chose the LM2931 becauase it is a low-dropout regulator that works fine with an input voltage of only about 5.5V when the 9V battery is dead.can I replace LM2931 with 7805?
C6 tunes the transmitter's RF frequency. C13 peaks the max power at the frequency of the oscillator but its peak is very broad.What is the function of c6 & c13 ?