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rf circuit
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Old 15th July 2019, 01:46 PM   #1
mighty fixer is offline mighty fixer  Trinidad and Tobago
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Default rf circuit

can someone help me with a simple fm transmitter circuit diagram that will transmit 88 to 108 MHz to a distance about 150 feet ??
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Old 15th July 2019, 02:00 PM   #2
djoffe is offline djoffe  United States
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Here's a link to the typical simple circuit...

FM wireless transmitter circuit | ElecCircuit.com
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Old 18th July 2019, 04:24 PM   #3
dhaen is offline dhaen  Europe
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I think you'll find the one suggested will be awfully unstable. The antenna forms part of the oscillator, so as you approach it with your hand, the frequency will change.
There are many to see with a simple Goggle search. Here's a more sophisticated one with a buffered output. It'll also be more powerful.
https://www.electroschematics.com/44...2-bf199-bfr90/
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