Composite amplifier (CB6781E)

This amplifier was obtained in a Harris documentation from the 90s. The circuit is high speed with a gain product x 300 MHz pass band.

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DC to DC SMPS (CB9669E)
This circuit was found in an American documentation from the 80's. The components are from that...
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The circuit shown is from the Texas Instruments optoelectronics manual. It is intended for audio...
LED drive I (CB18890E)
This circuit drive an LED with constant current determined by the values of the resistors of 10...