Hi everyone
I've built a FET stabilized wein bridge osc that outputs a sinewave at 1.5v rms from pin 1 of a TL071. The TL071 is a gain stage fed from a TL072 (the wein bridge IC).
I'd like to energize a small coil (R = 1.2ohms) from the output of the TL071 but the act of adding the coil across ouput & ground badly distorts the original sinewave I can get around this by adding a 2k resistor in series with the ouput and the coil but then I'm getting insufficient voltage to the coil.
Is there a way to get the whole 1.5v rms to the coil without distorting the signal coming from the TL071?
Many thanks
I've built a FET stabilized wein bridge osc that outputs a sinewave at 1.5v rms from pin 1 of a TL071. The TL071 is a gain stage fed from a TL072 (the wein bridge IC).
I'd like to energize a small coil (R = 1.2ohms) from the output of the TL071 but the act of adding the coil across ouput & ground badly distorts the original sinewave I can get around this by adding a 2k resistor in series with the ouput and the coil but then I'm getting insufficient voltage to the coil.
Is there a way to get the whole 1.5v rms to the coil without distorting the signal coming from the TL071?
Many thanks