Found in a 90s Hands On Electronics, this small preamp finds applications like microphones and other sources. Its gain is 3 dB with a response of 120 to 20 000 Hz.
This circuit used in instrumentation is suggested by National Semiconductor, now Texas Instruments and...
This organ, played by a probe was found in no old documentation, but it can be easily implemented these...
This circuit is indicated for supplying the CB17495E transmitter. The BD135 must have a small heat...