Analog Data Sheets Data sheets for some common ones are here. Diodes 1N4740ADownload 1N4148Download 1N4007Download 1N914Download Transistors MPF102Download 2N3904Download 2N3906Download 2N4351Download 2N5457-DDownload Operational Amplifiers LM741Download Voltage Regulators LM 317 Voltage RegulatorDownload 1723 Voltage RegulatorDownload 78xx Voltage RegulatorDownload