[sdiy] 2n3904 transistor matching stats

[Mike Beauchamp]

> That is golden data.  Thanks.  Do you know when your transistor die were
> manufactured?  It would be most interesting to compare your results with a
> batch made 25 years ago.
>
Hi John,
These were freshly ordered from Digikey, I don't know how long they hold 
stock for or how many warehouses it passes through before they get the 
transistors. But I'm guessing they've been manufactured in the last few 
years.