Good practical electronics text on line

[Paul Perry (Frostwave)]

http://mysite.du.edu/~etuttle/electron/elecindx.htm

Hope not mentioned previously - could not find by search, anyway.

[LMJS]

Thanks!

[gaussmarkov]

I have not seen that one and it has some helpful stuff.  Thanks Paul!

[MartyMart]

Some useful stuff there , thanks Paul
MM.

[slacker]

bookmarked, cheers Paul.

[Dragonfly]

lots of good stuff there - thanks !

[miqbal]

Thanks, Paul!

[gaussmarkov]

We will use such packages here. For voltage to frequency conversion, the LM331 is available in an 8-pin DIP, looking much like an op-amp. Going the other way, we will use the LM2907, which comes in a 14-pin DIP. Incidentally, the LM prefix refers specifically to National Semiconductor, but there are other sources, and these will use their own prefixes. The prefixes are so that government orders using them will also choose the manufacturer at the same time, under the supposition that a different prefix is a different part.

i always wondered about the prefixes.  i could tell that they were manufacturer specific, but i didn't know "the man" was responsible.     i should have guessed.

[Paul Perry (Frostwave)]

"the man" did us another favour: for a part to be approved for use in military equipment, there has to be a "second manufacturing source" available. So companies like National & TI are forced to get together & licence parts to each other.
It's pretty tragic that "the man" never found a way to use synth chips in weapons of mass destruction...

[soulsonic]

Nice links. Thanks Paul!