old transistors

On 16 Jan 2010 at 11:05, David Griffith wrote: Very nice, David. Thank you! I remember experimenting with CK722, 2N107 and 2N170s many years ago. I recall my family's first transistor radio--a 6-transistor Automatic. Metal chassis construction with point-to-point wiring with each transistor in a socket. Oddly, much larger than a Motorola Pixie tube radio. Sitting on my kitchen counter for use as an emergency radio, I have an 60's era Sony 10 transistor AM-FM set. Has worked every time I've turned it on. Takes 3 D-sized cells and is very sensitive. I seem to recall that some early import manufacturers played the "watch jewel" game--added transistors to the unit without including them in any circuitry. This allowed them to up the all-important "transistor count" prominently displayed on the unit. So how many transistors does an iPod have? Cheers, Chuck