Can I use a Transistor BC547 instead of BC548? Quora In most cases you could. BC547 and BC548 are essentially the same but BC547 has a higher breakdown voltage whereas BC548 has low noise. These are the most general purpose NPN silicon transistors and changing one with the other does...
The transistor was successfully demonstrated on December 23, 1947 at Bell Laboratories in Murray Hill, New Jersey. Bell Labs is the research arm of the American Telephone and Telegraph (AT&T). William Shockley, John Bardeen, and Walter Brattain. The three individuals credited with the invention of the transistor were William Shockley,...