audioguru Well-Known Member Most Helpful Member Apr 14, 2009 #41 colin55 said: Also the 390R is too small a value for 9v operation. Click to expand... My FM transmitter has only 220 ohms to ground from the emitter of the RF oscillator and it operates from only 5.0V. It works perfectly.
colin55 said: Also the 390R is too small a value for 9v operation. Click to expand... My FM transmitter has only 220 ohms to ground from the emitter of the RF oscillator and it operates from only 5.0V. It works perfectly.