MF EDEN 20

Next stepp was to bild a LF amplifier LM380. It works as it should ~ 650 mW @ 12V 8 ohm, 

or 1W @ 12V 4 ohm,  I = 15 mA no Audio  150 mA @ 1W out.  Gain 34 dB. Whit a litel 4 ohm speaker it sounds realy hard with 1 KHz ton. Frequency ressponce -3dB @ 165 Hz 0 dB @ 100 kHz.

On satterday i solder the preamplifier NE5534 clipping @ 250 mV out. The LM380 neds only 40 mV in

so this is ok Gain 28 dB  Frequency ressponce -3dB @  400 Hz and 2,4 kHz locks promising.

Together NE5534 + LM380 give a gain of 60dB measured.

Stay tuned next i put out a block diagram.