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How do I know if which leg is the emitter or the collector? (Transistor . . . \$\begingroup\$ Off the cuff - for jellybean transistors I almost invariably use BC337 (NPN) and BC327 (PNP) - both CBE A transistor selector book woul;d be the easy way to check distributions as they have pinout tables which they assign a letter code to and then show the relevant code for each device
transistors - How are C(OBO) and C(IBO) defined? - Electrical . . . Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
transistors - BJT high frequency analysis - Electrical Engineering . . . From what I remember, the Cbe depends on the emitter current Higher current causes lower reac (1 gm); at 1mA, its 26 ohms at 2mA its 13 ohms 2mA is 4 volts 2Kohm (ignoring the emitter bypass cap) Thus your circuit has an incremental emitter-base small-signal resistance of about 13 ohms
Vb and Vbe of a transitor - Electrical Engineering Stack Exchange Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
Reason not to use aluminium wires, other than higher resistance It is the primary choice in HV power transmission cables- aluminum with a steel core for strength As well as the well-known issue of cheaply and easily making reliable field connections with small gauge simple aluminum wires (eg house wiring), the higher resistivity means things like transformers and motors would need more iron
STM32 ST-LINK - Electrical Engineering Stack Exchange Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers
rf - Why should a receiving antenna be impedance matched to 50 ohm . . . After reading the free "RF Design" magazine for many years, that after repeatedly thoroughly reading "The Amateur Radio Handbook" and admiring those EIMAC 4CX-1000A triodes shown in the back, AND examining the primarily narrow-band behavior of RF circuits (antennas are NARROW BAND, maximum-power-transfer matching PI networks are NARROW BAND), I