This circuit can modulate a laser rate at frequencies of 50 kHz. We found the old documentation. The bipolar transistors can be the BD135 and 136 and the FET admits equivalent.
This power supply was found in a 2000 documentation. It can supply currents from 2 A to 15 V and 1...
We found this circuit in a Radio & Electronics Constructor of November 1975. The magazine no...
This circuit is designed to modulate small AM transmitters with the same power order. The circuit is...