Institute Newton C. Braga

Circuit Bench

40W Amplifier LMLM1875 (CB25526E
) We found this circuit in the November 1992 issue of Radio Electronics magazine. The 30V power...
Enhanced Operational Amplifier LM139 (CB14243E)
In the figure we show how to improve the performance of an operational amplifier with gain 100...
Photo Complementary Detector (CB14633E)
This circuit is from a 1978 optoelectronics manual from Texas Instruments. The transistor can be a...