Physics Help needed!!!!

[katri]

Can any one help me with some physics calculations, i need to know hot to work out the gain of a transistor and a darlington pair. if anyone could help i would greatly appericiate

[fdeck]

Do you mean, the gain of an amplifier with these components in it, or of the components themselves? To get started, think if you know a rule of thumb, for what "beta" means for a transistor.

[katri]

I'm looking for a formula for calculating the gain of a single transistor. I meausred the voltages across the C-B, B-E and C-E and i have a set of results can i get the gain from this?

[Finsterino]

Well let's see: if the input is a sine wave of .1V P-P, and the output shows 1 V P-P, that is a gain of 10.

Want that in dB?

[TrooperFarva]

All I remember from digital circuits is that the current gain is equal to the collector current divided by the base current. I don't know what other results you have from the voltages, but if you can calculate the currents, you should be able to get the gain really easily.